JPH09296600A - Scaffolding for slope work and erection method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffolding lightweight using a small quantity of material and easy to build up and dismantle without interfering with carry-in or the like of material while ensuring the safety of workers at the time of slope construction. SOLUTION: A scaffolding for slope work is provided with a jack base 4 provided with tilt angle adjusting mechanism and mounted on a basement 3 of a slope base part, built-up supports 5 connected at the lower end part to the jack base 4 and installed at specified spaces along the gradient direction of a slope 2, braces for connecting these built-up supports 5, support brackets 6 provided with diagonal member angle adjusting mechanism and locked to the built-up supports 5, handrail poles 7 with height adjusting mechanism locked to the tip part of a scaffolding board supporting member of each support bracket 6 so as to be able to change its upper height, and handrails 8 for connecting the adjacent handrail poles 7 to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding for slope work which is used for repair work at a high place on a slope such as a sloped surface or a sloped roof, a concrete retaining wall construction with a slope, or a block stacking retaining wall construction. Structure and method of construction.

[0002]

2. Description of the Related Art When constructing or repairing a structure having a slope, it is necessary to provide a work space suitable for the slope angle of the slope. For example, a block stacking retaining wall made by stacking precast concrete blocks is constructed on the slopes of the embankment part and the cut part in the construction of a residential land, and the construction method is as follows. First, after constructing a certain basic concrete in the root cutting part of the hillside, concrete blocks are piled one by one on this basic concrete manually,
At the same time, the concrete is placed on the back surface of the concrete block to form an integral block retaining wall. Then, this block stacking work is repeated up to a predetermined slope height to build a retaining wall-like wall surface.

By the way, since the work of stacking blocks is so-called high work depending on the height of the slope for constructing the retaining wall, it is obligatory to provide a handrail or the like in the work place. Since a new block is sequentially stacked on top of the stacked blocks, it is very complicated to provide a handrail each time. In addition, since the handrail is an obstacle when the material such as the block is carried into the work place, the handrail has to be removed at the time of carrying in. For this reason, in the conventional block stacking work, there are many cases in which workers wearing safety belts from a master rope stretched at a predetermined height on the work site without a handrail perform life work by taking a life rope.

In addition, the block stacking retaining wall is subjected to joint finishing after the stacking is completed. For this work, it is necessary to assemble a working scaffold on the front surface of the retaining wall. The conventional work scaffold used for joint finishing is a so-called main scaffold where pipes, logs or steel frame scaffolds are assembled along the slope and a scaffold board is laid on this, or it is easy to construct by using drainage holes. It was either a scaffold or a mobile scaffold that was movable along the horizontal direction of the slope.

[0005]

However, in the method of performing work by taking a lifeline from the master rope, the worker cannot smoothly move on the scaffold depending on the position of the master rope. For this reason, in practice, the lifeline is often removed from the parent line, and the safety of work at height is not always ensured.

Further, when a slope work scaffold used for finishing joints and the like is constructed with a main scaffold, the number of scaffold materials is very large, which is disadvantageous in terms of work efficiency and cost. Further, since it is technically difficult to assemble a single pipe or the like to construct a scaffold, it is not easy to install in today's world where skilled workers are lacking, and there was a concern about ensuring safety during the construction.

Further, when constructing such a main scaffold at the time of stacking blocks, it has to be constructed sequentially according to the work process, but there is a drawback that the assembling work takes time, and moreover, it is a heavy machine such as a backhoe. Due to this, the scaffolding material was an obstacle when carrying in materials or placing concrete.

On the other hand, in the case of a simple scaffold constructed by inserting a single pipe or rebar into the drainage hole, the work is more difficult than that of the main scaffold, so a skilled worker such as a clerk is required for the installation work rather than a general worker. Next, there was a disadvantage that construction was very limited. In addition, there is a possibility that the inserted pipe or the like may come off, so that there is a problem in safety. Further, depending on the position of the water drainage hole, there is a case where the height does not match the stacking height of the blocks, which makes the stacking work difficult.

Further, the mobile scaffold is unsuitable for stacking blocks due to its structure, and it is difficult to assemble and operate the block stack retaining wall having irregularities. Moreover, it was not suitable when working simultaneously on a retaining wall having a large area.

The present invention solves the above problems, has a small number of materials used for scaffolding, is lightweight, is easy to assemble and dismantle, and can be safely constructed without the need for hawks or skilled workers. The object is to provide a scaffold for slope work which is advantageous in terms of process and cost.

It is also an object of the present invention to provide a scaffold for slope work and a method for constructing the slope work, in which the safety of workers is ensured not only when the slope is completed but also when the slope is constructed, and at the same time, the scaffolding material does not interfere with the loading of materials. Has an aim. Another object of the present invention is to provide a scaffold for slope work in which scaffold plates can be installed at the same height even if the slope base has a longitudinal gradient.

[0012]

In order to solve the above-mentioned problems and to achieve the object, the slope work scaffold of the invention according to claim 1 is provided with a tilt angle adjusting mechanism and is mounted on the base of the slope base. A jack base, an assembly strut that connects the lower end to this jack base and is installed at predetermined intervals along the slope direction of the slope, a connecting member that connects between the assembly strut, and a diagonal member angle adjustment mechanism. A pillar bracket to be locked, a handrail pillar with a height adjusting mechanism that can lock the tip of the scaffolding plate support member of this pillar bracket and change the upper height thereof, and a handrail that connects adjacent handrail pillars. It is characterized by having. The jack base is placed on the base of the slope base, the lower end of the assembly strut is connected to the jack base, and the assembly strut is installed along the slope direction of the slope by adjusting the jack base. The jack base of the slope work scaffold is capable of adjusting the angle according to the slope direction of the slope, and the assembly column connected to this can adjust the entire length of the unit frame by appropriately assembling the unit frame. Therefore, the number of materials used for scaffolding is small, lightweight,
Moreover, assembling and disassembling work is easy, and it is possible to construct safely without the need for a clerk or a skilled worker, which is advantageous in terms of process and cost. Also, by changing the height of the upper part of the handrail post that is locked to the tip of the scaffolding plate support member of the column bracket, while ensuring the safety of workers not only when the slope is completed but also when the slope is constructed, The handrail pillars and handrails do not interfere with the loading of materials.

The scaffold for slope work according to the second aspect of the present invention comprises:
The jack base is connected to the lower end of the assembly column, and the assembly column is configured such that the height of the assembly column can be changed stepwise by appropriately selecting the insertion position of the engagement pin. There is. The jack base is connected to the lower end of the assembly column, and the height of the assembly column can be changed stepwise by the adjustment by the jack base, so that the assembly columns can be installed at the same height.

The scaffold for slope work according to the third aspect of the present invention comprises:
The pillar bracket is characterized in that an upper end portion of the vertical member is hooked on a locking member of the assembly pillar and a lower end portion is hooked on another locking member of the assembly pillar. The assembly column has a locking member, and the column bracket can easily lock the column bracket to the assembly column by selecting a locking member having an appropriate height by the column bracket.

The scaffold for slope work according to the invention of claim 4 is
The assembly support column is composed of a combination of a pilot support column and an adjustment support column, and each is connected by a support column joint and installed along the slope direction of the slope.
The height of the assembled support can be easily adjusted by combining the pilot support and the adjustment support.

The scaffold for slope work according to the fifth aspect of the present invention comprises:
Each of the pilot support column and the adjustment support column has the support column joint in the lower part of one steel pipe, the support column joint fitting part in the upper part, and the support column bracket engaging part and the connecting member locking part. It is characterized by that.
Pilot support and adjustment support have one steel pipe with a support joint, support joint fitting part, support bracket engaging part and connecting member locking part, small and lightweight, convenient for storage and transportation, Moreover, it is low cost.

A scaffold for slope work according to the invention of claim 6 is
The jack base is characterized in that a screw rod is rotatably supported on a base plate. The jack base is
Since the screw rod is pivotally supported with respect to the base plate, it is possible to cope with the inclination angle of the base.

A scaffold for slope work according to the invention of claim 7 is
The assembly column is characterized by including a spacing member that supports a lower end on a slope. Since the spacing member can adjust the distance between the assembly column and the slope, the distance between the assembly column and the slope can be kept constant even when the slope has irregularities.

A scaffold for slope work according to the invention of claim 8 is
The handrail post has a handrail locking member capable of adjusting the height of the handrail, and further, the handrail post is inserted into and supported by a sheath pipe provided at a tip portion of the scaffolding plate support member so that the height can be adjusted. I am trying. The height of the handrail can be adjusted by the handrail locking member provided on the handrail post, and the handrail post can be lowered inside the sheath pipe when lowering the handrail, making it easy to adjust the height of the handrail post according to the type of work. Can be changed to.

A scaffold for slope work according to the invention of claim 9 is
The handrail is characterized by having a telescopic mechanism.
When lowering the handrail pillars, the handrails provided between the handrail pillars become oblique as the handrail pillars are lowered and the distance between the fulcrums becomes longer, but since it is equipped with a telescopic mechanism, it is possible to cope with this, depending on the type of work. It is possible to easily change the height of the handrail pillar and the handrail.

According to a tenth aspect of the present invention, there is provided a scaffolding for slope work, characterized in that it is configured such that the assembling column can be combined with an ascending / descending column having a step rail.
By installing the combined support pillars in combination with the lifting support pillars, the worker can easily move up and down using the lifting support pillars, thus improving work efficiency.

According to the eleventh aspect of the present invention, there is provided a scaffold for slope work in which the lower end of the assembling lifting / lowering column can be connected to an upper portion of a jack base which is provided with a tilt angle adjusting mechanism and is mounted on the base of the slope base. It is characterized by having done. As in the case of the assembled support pillar, the height of the assembly lifting / lowering support pillar having the step rail can be adjusted by a simple jack base.

According to a twelfth aspect of the present invention, in the method for constructing a scaffold for slope work, a jack base with a tilt angle adjusting mechanism is placed on a base of a slope base at predetermined intervals, and the lower end of the assembly column is mounted on the jack base. And assembling the assembly columns along the slope direction of the slope and extending while assembling the connecting members between adjacent assembly columns, locking them at the appropriate height of the assembly columns and using the diagonal member angle adjustment mechanism to make them horizontal. Attach the scaffolding plate to the scaffolding plate support member of the pillar bracket that became, and place the handrail post with height adjustment mechanism that locks on the bracket tip when loading equipment on this scaffolding plate or above the slope. It is characterized in that the handrail post and the handrail are fixed at a predetermined height when the work is carried out on the scaffold plate. Since the pillar brackets can change the mutual member angles according to the slope gradient by the diagonal member angle adjusting mechanism, the scaffold plate supporting member can be kept horizontal. The pillar brackets are to be locked at the same height of the assembly pillars which are installed at appropriate intervals on the slope, and the lateral distance is determined according to the length of the scaffold plate. If the slope to construct the scaffold is flat, the adjacent brackets will be parallel, so it is possible to use a steel scaffolding board with nails of a specified shape, but if the slope is not flat, wooden or steel scaffolding The plate will be fixed with a binding band or the like. The assembly columns installed according to the slope direction of the slope can be easily adjusted to the same height, the assembly and dismantling work is easy, and it can be safely constructed without the need for hawks and skilled workers. It is also advantageous in terms of cost.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a front view of a slope work scaffold of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a view showing a pilot support column, FIG. 4 is a view showing an adjustment support column, FIG. 5 is a view showing an adjustment support column, and FIG. FIG. 7 is a view showing a column for lifting and lowering, FIG. 7 is a side view of the jack base, FIG. 8 is a sectional view showing a section taken along line VIII-VIII of FIG. 7, FIG. 9 is a diagram showing a column bracket, and FIG. 10 is a diagram showing another embodiment. 1 is a view showing a support bracket, FIG. 11 is an enlarged view showing a locking portion of the support bracket, FIG. 12 is a view showing a locking portion of a support bracket of still another embodiment, FIG.
3 is an enlarged view showing a locking portion of another pillar bracket,
FIG. 14 is a diagram showing a handrail post, and FIG. 15 is a diagram showing a spacing member.

The scaffolding for slope work 1 comprises a slope 2 and a base 3 at the base.
A jack base 4 to be placed on top, an assembly strut 5 that is connected to the jack base 4 at the lower end thereof and is installed along the slope direction of the slope 2, and a strut bracket 6 that is locked to the assembly strut 5.
And a handrail post 7 and a handrail 8, a scaffolding plate 9 is hung between the post brackets 6, and the connecting post 10 is attached to the assembly post 5.
And the spacing member 11 is attached. Connecting member 10
For this reason, a brace is used in this embodiment.

The assembly support column 5 is composed of a combination of the pilot support column 50 shown in FIG. 3 and the adjustment support columns 51 and 52 shown in FIGS. 4 and 5, respectively.
51a and 52a are connected and installed along the gradient direction of the slope 2. By combining the pilot support column 50 and the adjustment support columns 51 and 52, the height of the assembled support column can be easily adjusted.

That is, the pilot support column 50 and the adjustment support column 5
1, 52 are steel pipes 50b and 51, respectively.
b, 52b, and column joints 50a, 51a, 5
2a, and the column joint fitting portions 50c, 51
c, 52c, and a column bracket engaging portion 50
d, 51d, 52c and connecting member locking portions 50e, 51
e, 52e. Post joints 50a, 51
a and 52a have pin through holes 50f, 51f and 52f, and are fixed to the steel pipes 50b, 51b and 52b by bolts and nuts 50g, 51g and 52g. The column joint fitting portions 50c, 51c, 52c have pin through holes 50h, 51h, 52h, and pin through holes 50f, 5f.
The 1f and 52f are aligned and the pins are inserted to be connected.

Support bracket engaging portions 50d, 51d, 5
2c is formed by bending round steel into a substantially U-shape and welding both ends on both sides of the steel pipes 50b, 51b, 52b, but any shape may be used as long as the support bracket 6 can be hooked. For example, it may have a pin shape or a shape in which the pin-shaped tip is bent and locked.
A commonly used gravity lock is used for the connecting member locking portions 50e, 51e, 52e.

As described above, the pilot support column 50 and the adjustment support columns 51, 52 are formed of one steel pipe 50b, 51b,
52b has column joints 50a, 51a, 52a, column joint fitting portions 50c, 51c, 52c, column bracket engaging portions 50d, 51d, 52c, and connecting member locking portions 50e, 51e, 52e, which are small and lightweight. It is convenient for storage and transportation, and at a low cost. If the column joints 50a, 51a, 52a are installed at the factory and then brought into the field, scaffolds can be assembled without using any tools.

Further, the scaffolding 1 for slope work is composed of the assembly columns 5
In addition, the assembling and lifting / lowering support column 53 can be combined and installed. The height of the combined lifting / lowering support column 53 can be easily adjusted by a combination of a pilot lifting / lowering support column 54 as shown in FIG. 6 and an adjustment lifting / lowering support column (not shown). The pilot lifting / lowering support column 54 is the pilot support column 5.
It is formed to have the same length as 0, and the adjustment lifting / lowering support post (not shown) is formed to have the same length as the adjustment support posts 51 and 52.
Since these have the same configuration, only the pilot elevating / lowering support column 54 will be described.

That is, the pilot elevating and lowering strut 54 is formed by connecting a pair of steel pipes 54b to each other by welding step bars 54a at predetermined intervals and connecting the strut joints 5 to the lower portion of the steel pipe 54b.
4c, a strut joint fitting portion 54d is provided on the upper portion, and a strut bracket engaging portion 54e and a connecting member locking portion 54f are further provided. The column joint 54c has a pin through hole 54g and is fixed to the steel pipe 54b with bolts and nuts 54h. The column joint fitting portion 54d has a pin through hole 54i, and the pin through hole 54g is aligned with the pin to insert a pin.

The strut bracket engaging portions 54e are formed by bending round steel into a substantially U-shape on both sides of the steel pipe 54b and welding both ends, but what if the strut bracket 6 can be hooked? It may have any shape, for example, a pin shape, or a shape in which a pin-shaped tip is bent and locked. A commonly used gravity lock is used for the connecting member locking portion 54f. A square steel pipe is used for the step rail 54a, and a step surface 54a1 is formed at the center thereof.

As described above, by installing the assembling lifting / lowering support pillar 53 in combination with the assembling supporting pillar 5, the worker can easily ascend / descend using the lifting / lowering support pillar 53, and the working efficiency is improved.

As shown in FIGS. 7 and 8, the jack base 4 has a structure in which a screw rod 4b is pivotably supported in all directions with respect to a base plate 4a, and is parallel to the slope of the slope 2. The angle of the threaded rod 4b can be adjusted, and the inclination of the base 3 can be dealt with. That is, even if the base 3 that supports the base plate 4a is tilted in the front-rear direction and the left-right direction, the assembly support column 5 and the assembly lifting / lowering support support column 53 can be installed aligned in the slope gradient direction. When the base plate portion is leveled horizontally, at least the tilt angle in the slope gradient direction can be adjusted, and the height of the adjacent assembly support column 5 and the assembly lifting / lowering support support 53 can be adjusted so that the pivot type is used. It does not have to be a jack base.

The support bracket 6 is, as shown in FIG.
It is composed of a horizontal member 6a which is a scaffolding plate supporting member, a diagonal member 6b, and a sheath pipe 6c through which the handrail pillar 7 is inserted and locked. The horizontal member 6a is welded to the sheath pipe 6c, and the hook portion 6 is attached to the tip end thereof.
d is provided, and the notch 6d1 of the hook portion 6d is hooked on, for example, the column bracket engaging portion 50d to lock the lock pin 6
Stop with e. The slant member 6b is configured such that the length of the inner pipe 6b1 and the outer pipe 6b2 can be adjusted by a pin 6f, and the inner pipe 6b1 is rotatably connected to the sheath pipe 6c with a support pin 6g as a fulcrum. It constitutes an angle adjustment mechanism. A locking portion 6h is provided at the tip of the outer pipe 6b2, and the notch 6h1 of the locking portion 6h is hooked on, for example, the column bracket engaging portion 50d to prevent the locking portion 6h from coming off. Lock pins 6e and 6i of the hook portions 6d and 6h
Do not lock both, but if at least one is locked, the column bracket 6 can be prevented from coming off. The sheath tube 6c is provided with a pin 6j for fixing the handrail post 7.

The support bracket 6 is constructed as shown in FIG. In this embodiment, members configured in the same manner as in FIG. 9 are assigned the same reference numerals and explanations thereof are omitted.
In this embodiment, the notches 6 are formed in the hook portions 6d and 6h.
Lock grooves 6d2, 6h2 are formed outside d1, 6h1, and lock claws 6k, 6 are formed in the lock grooves 6d2, 6h2.
1 is movably provided between the unlocked position and the locked position. When the lock claws 6k and 6l are lifted by hand, for example, they are hooked on the strut bracket engaging portion 50d and released, they are automatically dropped to the lock position and prevented from slipping off by a simple operation.

Further, the hook portions 6d and 6h can be constructed as shown in FIG. In this embodiment, the hook portions 6d,
Lock pin 6 is placed inside the notches 6d1 and 6h1 of 6h.
m, 6n and lock pins 6o, 6p are provided.
Lock claws 6q, 6r are provided on the lock pins 6m, 6n and the lock pins 6o, 6p so as to be movable between a release position and a lock position by engaging the lock grooves 6q1, 6r1 and the lock grooves 6q2, 6r2.

Further, the hook portions 6d and 6h can be constructed as shown in FIG. In this embodiment, the hook portion 6
The notches 6d1 and 6h1 of d and 6h are hooked on, for example, the column bracket engaging portion 50d, and the lower hooking portion 6h is fixed by the bolt 6s to prevent the nut from coming off.

The support bracket 6 is constructed as shown in FIG. In this embodiment, members configured in the same manner as in FIG. 9 are assigned the same reference numerals and explanations thereof are omitted.
The diagonal member 6b of this embodiment is configured such that the length of the inner pipe 6b1 and the outer pipe 6b2 can be adjusted by a pin 6f, and a bifurcated hooking portion 6t is fixed to the outer pipe 6b2. The hooking portion 6t is hooked on, for example, the pillar bracket engaging portion 50d, and the inner pipe 6b1 is slid and fixed by the pin 6f to prevent it from coming off.

As described above, since the pillar brackets 6 can change the mutual member angles according to the slope inclination by the diagonal member angle adjusting mechanism, the scaffolding plate 9 can be kept horizontal.
Further, the pillar brackets 6 are to be locked at the same height of the assembly pillars 5 and the assembly lifting / lowering pillars 53, which are installed on the slope 2 at appropriate intervals, and the lateral intervals thereof are the scaffolding board 9.
Determined according to the length of. When the slope 2 for constructing the scaffold is flat, the adjacent strut brackets 6 are parallel to each other, so a steel scaffold plate with a claw having a predetermined shape can be used, but when the slope is not flat, for example, a curved surface is provided. If
If there are steps, etc., scaffolding boards made of wood or steel will be fixed with binding bands.

A pin 6j for supporting the handrail column 7 is inserted through the side surface of the sheath tube 6e, but by removing this pin, the handrail column 7 can be dropped and its height can be lowered. In addition, the handrail pillar 7
Has a hole 7a at the bottom for inserting the pin 6j, and a gravity lock 7d at the upper end. At the center of the handrail pillar 7, a handrail locking member 70 having a gravity lock 7d and capable of adjusting the height of the handrail 8 is locked by a locking pin 71.

The handrail post 7 is supported by being inserted through the sheath tube 6c so that its height can be adjusted. The handrail locking member 70 provided on the handrail post 7 is
By removing the locking pin 71, it can be moved downward, and the height of the handrail 8 supported by the handrail locking member 70 can be adjusted. Further, when the handrail 8 is lowered, the handrail 8 can be lowered inside the sheath tube 6c, and the height of the handrail 7 can be easily changed according to the type of work.

When lowering the handrail post 7, the handrail 8 provided between the handrail posts 7 becomes oblique as the handrail post 7 is lowered and the distance between the fulcrums becomes longer. it can. The height adjusting mechanism of the handrail post 7 is not limited to such a drop-in type. For example, the handrail post and the horizontal member of the post bracket may be pivotally supported.

The interval holding member 11 is a single clamp binding member 11a which is mounted on the assembly support column 5 and the assembly support / post assembly support column 53.
And a connection plate 11c welded to and fixed to both ends of the nut 11b, and a bolt 11d screwed to the nut 11b. The lower end of the bolt 11d is provided with a bearing 11e that abuts the slope 2. Support Department 1
1e is a bearing of rubber, resin, etc., which is hard to be colored so as not to damage the structure. Since the spacing member 11 can adjust the space between the assembly support column 5 and the assembly lift / lower support support 53 and the slope 2, the assembly support 5 and the assembly lift / support combined support 53 can be placed on the same plane even when the slope 2 is uneven. Can be juxtaposed.

Next, FIG. 16 shows a method of constructing a scaffold for slope work.
It will be described based on. FIG. 16 is an explanatory diagram of a procedure for constructing a slope work scaffold provided when constructing a block stacking retaining wall. First of all, after constructing a predetermined basic concrete 12 at the root cutting part of the slope, the concrete blocks 13 are piled up one by one by heavy equipment and manpower, and the concrete is piled up on the back side and the concrete is piled up. A wall surface is repeatedly built up to a predetermined slope height (about 2 m above the ground) (Fig. 16 (a)).

After that, the jack bases 4 with the tilt angle adjusting mechanism are placed on the base 3 at a predetermined interval, and the assembly struts 5 of the first layer portion are erected along the slope direction of the slope, and the stanchion brackets 6 and A work floor consisting of scaffolding boards 9 etc. was constructed (Fig. 16
(B)), using this work floor, a wall surface is constructed up to a height of about 3 m above the ground, for example (Fig. 16 (c)). Next, a wall is constructed while building the assembly columns 5 and the like of the second layer portion, the next work floor is erected, and the work of stacking blocks on the upper part is performed. In this way, when the height of the retaining wall becomes considerably high, temporary embankment 14 is performed on the base 3 to adjust the height of the heavy equipment (FIGS. 16D and 16E). After the construction of the retaining wall and the scaffold to the top is completed (Fig. 16 (f)), the temporary embankment 14 is removed, the temporarily removed work floor is restored, and the joint of the block is finished (Fig. 16 (g). )).

In this way, the block stacking work is carried out by using a heavy machine such as a backhoe to carry the material onto the scaffolding plate 9 and the embankment 15 on the rear surface and sequentially stack new blocks, so that the block does not interfere with the turning of the heavy machine. The handrails and handrail pillars of the part are temporarily moved to the low position, and when the work is performed on the scaffolding plate 9, these are restored to the original positions. Therefore,
When the blocks are piled up, it is possible to work safely at a predetermined position, and scaffolding can be disassembled sequentially while finishing joints, which is efficient in terms of materials and processes.

Since this scaffold for slope work can be easily installed along the slope of the slope, it is also effective for repair work of slope retaining walls made of concrete as well as block pile construction on slopes as described above. Is.

The above-described slope work scaffold is a case in which the height of the base surface is almost constant and the work floor can be installed parallel to the base. However, there is a vertical gradient in the base and the work floor and the base are not parallel. Sometimes the adjustment columns 51, 5 shown in FIGS.
2, and is connected to the pilot column 50 by column joints 51a and 52a. By adding an adjustment allowance for the jack base 4 to this, even if the base 3 has a vertical gradient, the heights of the lower ends of the adjacent columns can be aligned and the scaffolding plate can be installed horizontally at the same height.

Next, another embodiment of the present invention will be described in detail with reference to the accompanying drawings. 17 is a front view of a scaffold for slope work according to the present invention, FIG. 18 is a side view of the same, FIG. 19 is a front view of an assembled support column, FIG. 20 is a side view of a support bracket, and FIG.
[Fig. 4] is a front view of a spacing member.

The slope work scaffold 101 has a jack base 104 mounted on a base 103 at the base of the slope 102, and a ladder-like assembly in which the lower end is connected to the jack base 104 and is installed along the slope direction of the slope 102. The pillar 105,
The support bracket 106 includes a support bracket 106 that locks to the assembly support 105, a handrail post 107, and a handrail 108.
A scaffolding plate 109 is bridged between the six members, and a connecting member 110 and a spacing member 111 are attached to the assembly column 105.

The assembly column 105 is a column-shaped pilot column 150 as shown in FIG. 19 which is appropriately assembled by a column joint 151 to adjust the entire length thereof. The pilot column 150 is composed of two column members 152. It is composed of a suitable number of horizontal members 153. If a plurality of types of unit frames having different lengths are prepared, the entire length of the assembly support column 105 can be appropriately adjusted according to the slope length. The pilot strut 150 is preferably made of a lightweight material such as an aluminum pipe, and if the strut joint 151 is installed at the factory and then carried into the site, scaffolding can be assembled without using any tools.

Since the jack base 104 has the same structure as that shown in FIGS. 7 and 8, its description is omitted. The column bracket 106 includes a horizontal member 106a that is a scaffolding plate supporting member and a vertical member 106 that has hooks 106b and 106j at the upper and lower ends.
c and a diagonal member 106d for connecting them, the horizontal member 1
The sheath tube 1 into which the handrail post 107 is inserted and locked at the tip of 06a
Fix 06e. According to the slope of the slope 102, the crossing angle α between the horizontal member 106a and the vertical member 106c can be adjusted to be, for example, an inclination slope of 1: 0.3, 1: 0.4, 1: 0.5, 1: 0.6. The material 106d includes an angle adjusting mechanism.

The diagonal member angle adjusting mechanism of the strut bracket 106 includes an engaging portion 106 of a plate member projecting from the vertical member 106c.
This is a method of locking the pin 106f at the lower end of the diagonal member to g while appropriately selecting it, but is not limited to this, for example, a plurality of pin holes for forming the engaging portion in the vertical member. But it is okay. Alternatively, a plurality of pin holes may be formed on the upper portion of the long diagonal member, and the pin members may be pin-coupled to the horizontal member while appropriately selecting them.

As described above, since the pillar brackets 106 can change the mutual member angles according to the slope inclination by the diagonal member angle adjusting mechanism, the scaffolding plate 109 can be kept horizontal. Further, the pillar brackets 106 are to be locked at the same height of the assembly pillars 105 that are installed on the slope 102 with appropriate intervals, but the lateral intervals are the scaffolding plates 109.
Determined according to the length of. When the slope 102 for constructing the scaffold is flat, the adjacent pillar brackets 106 are parallel to each other, so that a steel scaffold plate with a claw having a predetermined shape can be used, but when the slope is not flat, for example, a curved surface is provided. In this case, when a step is provided, a scaffold plate made of wood or steel is fixed with a binding band or the like.

A pin 106h for supporting the handrail post 107 is inserted through the side surface of the sheath tube 106e. By removing this pin, the handrail post 107 can be dropped to lower its height. Since the configuration is similar to that shown in FIG.

When lowering the handrail post 107, the handrail post 10
The handrail 108 provided between the two is inclined as the handrail pillar 107 is lowered, and the distance between the fulcrums becomes long, but since the extension mechanism is provided, this can be dealt with. It should be noted that the height adjusting mechanism of the handrail post 107 need not be such a drop-in type. For example, the handrail post 107 and the horizontal member of the post bracket 106 may be pivotally supported.

In addition, the support bracket 106 is the hook 10
6b is hooked to a horizontal member 153 of an appropriate height of the assembly pillar 105, and a hooking portion 106j at the lower end of the vertical member 106c is hooked to another horizontal member 153 to be fixed. In order to prevent floating, the hooking portion 106b
A rotatable L-shaped metal fitting 106i is attached below.

The space holding member 111 is a tightening member 111a to be mounted on the column member 152, and the bolt nut 1 connected to this.
11b, and a supporting portion 111c that abuts the slope 102 is provided at the lower end portion thereof. The support portion 111c is made of rubber, resin or the like that is hard to be colored so as not to damage the structure.
Since the spacing member 111 can adjust the distance between the assembly support 105 and the slope 102, the assembly support 105 can be juxtaposed on the same plane even when the slope 102 has irregularities.

The slope work scaffold described above is a case where the height of the base surface is almost constant and the work floor can be installed parallel to the base, but the work floor and the base are not parallel because the base has a longitudinal gradient. The adjustment column shown in FIG. 22 is sometimes used. FIG.
2 is a front view of the adjustment column, and FIG. 23 is a front view of the pilot column. The adjustment column 116 is a slide member 11 having a substantially H shape.
6a and a substantially H-shaped support member 116b for inserting and supporting the same 6a
And the slide member 116a is a column joint 15
1 connects to the pilot column 150 of the assembly column 105.

Slide member 116a and support member 116b
A plurality of pin holes 116c are formed in the vertical member of
Both are fixed by 6d. The height H1 of the adjustment strut member 116 is changed stepwise by appropriately selecting the insertion position of the engagement pin 116d, and the adjustment allowance H2 of the jack base 104 is added to this.
Even if the base 103 has a longitudinal gradient, the heights of the lower ends of the adjacent columns can be aligned and the scaffolding plate can be horizontally installed at the same height.

Thus, the two jack bases 104
And each jack base 104 is an adjustment support 1
It is connected to the lower end of the assembly support column 105 via 16, and the height of the assembly support column 5 can be set evenly with a simple configuration in which the adjustment by the jack base 104 and the height of the adjustment support member 116 are changed stepwise. it can.

Further, the jack base 104 and the assembly support 1
The connecting structure with the lower end portion of 05 is not limited to this embodiment, and a receiving member 220 described later is fitted on the upper portion of the single jack base 104, and the receiving member 220 and the assembly column 10 are connected.
5 can be connected to the lower end of the assembly support 105, or can be connected to the lower end of the assembly support 105 via the adjustment support member 116. By using the receiving member 220, the single jack base 104 can be connected to the lower end of the assembly column 105 or the lower end of the assembly column 105 via the adjustment column 116, and the jack base 104 and the assembly column 10 can be connected.
5 or the connection structure with the adjustment column 116 can be simplified.

By the way, when the steel scaffolding plate with the claws is used, since the mutual positional relationship of the support brackets is fixed, even if the support bracket 106 is hooked on the cross member of the assembly support 105, the support brackets are not displaced laterally. However, when the wooden scaffolding board is fixed with a binding band, etc., the column bracket 10
Since 6 is loosely fixed, it may move on the cross member.
As described above, when the slope is not flat, the scaffolding plate with the claw cannot be used, so a scaffolding in which the fixed state of the support bracket 106 is improved is required.

An embodiment of the support bracket is shown in FIG. This support bracket 126 is a pilot support 15
A prismatic sheath tube 1 that is attached to 0 and is fixed to a pillar 151.
This is a method of inserting and locking a vertical member 126c having the same cross section in 54. For this reason, the fixed state of the column bracket 126 is more reliable than the hooking system, and there is no deviation or rotation, so it is safe to place the wooden scaffolding plate 109.

The diagonal members 126d of the column bracket 126 are provided with engaging pins 126f at the intermediate portion and the vertical member connecting portion, and the angle of the horizontal member 126a is adjusted by moving and combining these pin positions. In addition, square sheath tube 1
54 is the minimum length that allows the vertical member 126c to move easily.

25 to 31 show still another embodiment of the scaffold for slope work. FIG. 25 is a schematic view showing a state in which a scaffold for slope work is installed, FIG. 26 is an explanatory view showing a combination of a jack base, a receiving member and an adjusting support column, FIG. 27 is a view showing an adjusting column, and FIG. 28 is a receiving member. FIG. 29 is a view showing the assembly lifting / lowering support pillar, FIG. 30 is a view showing a rail of the assembly lifting / lowering support pillar, and FIG. 31 is a view showing another embodiment of the assembly lifting / lowering support pillar.

As shown in FIG. 25, when the work floor and the base are not parallel to each other due to the vertical slope of the base, the jack base, the receiving member and the adjustment support shown in FIGS. 31 to 31 are used.

When the base has a vertical gradient and the work floor and the base are not parallel to each other, the jack base 104, a plurality of adjusting columns 210, 211 and 212 having different lengths, and the adjusting columns 210, 211 and 212 are jacked. Base 10
4 is used to adjust the height of the jack base 104 in accordance with the slope of the slope 102,
The heights of the assembly columns 105 are made uniform by selecting the adjustment column members 210, 211, and 212 having different lengths.

In the jack base 104, as shown in FIG. 26A, a screw rod 104b is pivotally supported on a base plate 104a so as to be rotatable in all directions, and a handle 104c for adjusting the height of the screw rod 104b. Can be screwed, and the angle of the screw rod 104b can be adjusted so as to be parallel to the slope of the slope 102, and the inclination of the base 103 can be dealt with.

Three types of adjusting strut members 21 having different lengths
0, 211 and 212 are shown in FIGS. 26 (c) to 26 (e) and FIG.
As shown in FIG. 7, the lower part is fitted to the receiving member 220, and the assembly column 105 is fitted to the upper part. Adjustment support member 21
Mounting holes 210a, 211a, 212a and mounting holes 210b, 2 are provided in the lower part and the upper part of 0, 211, 212, respectively.
11b and 212b are formed.

The receiving member 220 includes a pair of left and right bottomed column fitting pipes 220a, 2 shown in FIGS. 26 (b) to (e) and FIG.
20b is connected by a bar member 220c, and further, a jack fitting pipe 220d is connected by a plate member 220e at the center of a pair of left and right bottomed support column fitting pipes 220a, 220b. As shown in FIG. 28 (a), the jack fitting pipe 22 is displaced from the line L1 connecting the centers of the pair of left and right bottomed column fitting pipes 220a, 220b to one side.
0d is arranged and the jack base 104 fitted to the jack fitting pipe 220d, and the assembly ladder-shaped pillar 5 and the adjustment pillar members 210 and 211 fitted to the pair of left and right bottomed pillar fitting pipes 220a and 220b. , 212 do not interfere with each other.

In the receiving member 220, the jack fitting pipe 220d is connected to the screw rod 104b of the jack base 104.
To the support member 220, and the lower end portion of the assembly support column 105 is fitted to the pair of left and right support column support pipes 220a and 220b of the receiving member 220, or a plurality of adjustment support members 210, 211 and 212 having different lengths. Is selected and fitted, and the lower end portion of the assembly column 105 is connected to the adjustment column members 210, 211 and 212. Then, according to the slope of the slope 102, the handle 104c of the jack base 104 is rotated to adjust the height, and a plurality of different adjustment support members 210 and 21 are provided.
The height of the assembly columns 105 can be made uniform with a simple structure by selecting 1, 212. In particular, even when the lower ends of the assembly columns 105 and the adjustment columns 210, 211, and 212 are a pair of left and right, the height can be adjusted by the single jack base 104 by using the receiving member 220, and the number of parts is small and simple. The height can be adjusted by operation.

As shown in FIG. 25, an embodiment in which the work floor and the base are not parallel to each other due to the vertical slope of the base will be described. An inclined column 102 and an assembly support column 1 having the same height will be described.
The distance from the lower part of 05 is the length as shown by L1 to L9. At the positions of the intervals L1 to L4, since the interval is shorter than the combination of the jack base 104 and the shortest adjustment strut member 210, the receiving member 220 is fitted on the upper part of the jack base 104 without using the shortest adjustment strut member 210. Then, the lower part of the assembly column 105 is fitted to the receiving member 220, and the handle 104c is operated to make the height of the assembly column 105 uniform.

At the positions of the intervals L6 to L9, the jack base 4 and the shortest adjustment support member 210 are used, and the receiving member 220 is fitted on the upper portion of the jack base 4, and the receiving member 22
The lower part of the shortest adjusting strut member 210 is fitted to 0, the lower part of the assembly strut 105 is connected to the upper part of the adjusting strut member 210, and the handle 104c is operated to make the height of the assembling strut 105 uniform.

The slope work scaffold 101 has an assembling column 105 and an ascending / descending column 30 having a step rail 301.
It can be installed by combining 0. As shown in FIG. 29, the assembly elevating / lowering support column 300 has mounting holes 300a and 300b formed in the lower and upper parts thereof, and the lower part of the assembly elevating / lowering support column 300 having a similar step bar on the upper part is fitted. The lower end of the lower assembly / elevation combined use column 300 is fitted to the upper portion of each jack base 104, and the height is adjusted by the jack base 104. In addition,
A single jack base 1 as shown in FIGS. 26 and 28.
The receiving member 220 may be fitted to 04, and the lower part of the assembly lifting / lowering support column 300 may be fitted to this receiving member 220, and the connection structure between the jack base 104 and the assembly lifting / lowering support column 300 is simple.

Assembling column 105 and assembling lifting column 30
By installing 0 in combination, the worker can easily move up and down by using the assembly elevating and lowering support column 300, and the work efficiency is improved.

This post 300 for combined lifting and lowering has a step 301a formed in the central portion of the crosspiece 301 with a width of about 1/3 as shown in FIG. 30, and as shown in FIG. Alternatively, the tread surface 301a may be formed over substantially the entire width.

[0079]

As described above, in the scaffold for slope work according to the first aspect of the present invention, the jack base of the scaffold for slope work can be adjusted in angle in accordance with the slope direction of the slope, and is connected to this. Since the total length of the assembled support column can be adjusted appropriately, the number of materials used for the scaffold is small, it is lightweight, and the assembly and disassembly work is easy,
It can be constructed safely without the need for eagle workers or skilled workers, which is advantageous in terms of process and cost. Also, by changing the height of the upper part of the handrail post that is locked to the tip of the scaffolding plate support member of the column bracket, while ensuring the safety of workers not only when the slope is completed but also when the slope is constructed, The handrail pillars and handrails do not interfere with the loading of materials.

In the scaffold for slope work according to the second aspect of the present invention, the jack base is connected to the lower end portion of the assembly column, and the assembly column has a simple structure in which the height of the assembly column is changed stepwise by adjustment by the jack base. Can be installed at the same height.

In the scaffolding for slope work according to the third aspect of the present invention, the assembly column has a locking member, and the column bracket is easily engaged with the assembly column by selecting the locking member having an appropriate height by the column bracket. You can stop.

In the slope work scaffold according to the fourth aspect of the present invention, the assembly support column is composed of a combination of the pilot support column and the adjustment support column, and the height of the assembly support column can be easily adjusted by the combination of the pilot support column and the adjustment support column.

In the scaffolding for slope work according to the fifth aspect of the present invention, the pilot strut and the adjustment strut are made of a single steel pipe, which is a strut joint, a strut joint fitting portion, a strut bracket engaging portion, and a connecting member locking portion. It is compact and lightweight, convenient for storage and transportation, and low in cost.

In the slope work scaffolding of the sixth aspect of the present invention, since the screw base pivotally supports the jack base so that the screw rod can swivel with respect to the base plate, it is possible to cope with the inclination angle of the base.

In the slope work scaffold of the invention as set forth in claim 7, since the spacing member can adjust the distance between the assembly support pillar and the slope, even if the slope has unevenness, the distance from the slope of the assembly support pillar can be increased. The distance can be constant.

In the scaffolding for slope work according to the eighth aspect of the present invention, the height of the handrail can be adjusted by the handrail locking member provided on the handrail column, and the handrail column can be installed in the sheath tube when lowering the handrail. The height of the handrail pillar can be easily changed according to the type of work.

In the scaffolding for slope work according to the ninth aspect of the present invention, when the handrail pillars are lowered, the handrails provided between the handrail pillars become slanted as the handrail pillars are lowered and the distance between the fulcrums becomes long, but an extension mechanism is provided. Therefore, the height of the handrail post and the handrail can be easily changed according to the type of work.

In the scaffolding for slope work according to the tenth aspect of the present invention, by installing the combined support pillar and the lifting support pillar, the worker can easily move up and down by using the lifting support pillar, and the work efficiency is improved. .

In the scaffolding for slope work according to the eleventh aspect of the invention, the height of the assembling lifting / lowering support column having the step rail can be adjusted by a simple jack base, like the assembly support column.

In the method of constructing the scaffold for slope work according to the invention of claim 12, since the pillar brackets can change the mutual member angles according to the slope slope by the slope material angle adjusting mechanism,
It is possible to ensure the horizontality of the scaffold plate support member. The pillar brackets are to be locked at the same height of the assembly pillars which are installed at appropriate intervals on the slope, and the lateral distance is determined according to the length of the scaffold plate. If the slope to construct the scaffold is flat, the adjacent brackets will be parallel, so it is possible to use a steel scaffolding board with nails of a specified shape, but if the slope is not flat, wooden or steel scaffolding The plate will be fixed with a binding band or the like. The assembly columns installed according to the slope direction of the slope can be easily adjusted to the same height, the assembly and dismantling work is easy, and it can be safely constructed without the need for hawks and skilled workers. It is also advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is a front view of a scaffold for slope work.

FIG. 2 is a side view of a scaffold for slope work.

FIG. 3 is a diagram showing a pilot column.

FIG. 4 is a view showing an adjustment column.

FIG. 5 is a view showing an adjustment column.

FIG. 6 is a view showing a lifting / lowering support column.

FIG. 7 is a side view of the jack base.

8 is a cross-sectional view showing a VIII-VIII cross section of FIG. 7. FIG.

FIG. 9 is a view showing a support bracket.

FIG. 10 is a view showing a column bracket of another embodiment.

FIG. 11 is an enlarged view showing a locking portion of a column bracket.

FIG. 12 is a view showing a locking portion of a strut bracket according to still another embodiment.

FIG. 13 is an enlarged view showing a locking portion of still another strut bracket.

FIG. 14 is a diagram showing a handrail post.

FIG. 15 is a diagram showing a spacing member.

FIG. 16 is a diagram illustrating a method of constructing a scaffold for slope work.

FIG. 17 is a front view of a slope work scaffold according to another embodiment.

FIG. 18 is a side view of a slope work scaffold.

FIG. 19 is a front view of an assembly column.

FIG. 20 is a side view of a column bracket.

FIG. 21 is a front view of the spacing member.

FIG. 22 is a front view of an adjustment column according to another embodiment.

FIG. 23 is a front view of an adjustment column according to another embodiment.

FIG. 24 is a front view of a pilot strut according to another embodiment.

FIG. 25 is a schematic view showing a state in which a scaffold for slope work according to another embodiment is installed.

FIG. 26 is an explanatory diagram showing a combination of a jack base, a receiving member, and an adjustment column.

FIG. 27 is a view showing an adjustment column.

FIG. 28 is a diagram showing a receiving member.

FIG. 29 is a view showing an assembling lifting column.

FIG. 30 is a view showing a crosspiece of the assembling lifting / lowering posts.

FIG. 31 is a view showing another example of the crosspiece of the assembling lifting / lowering posts.

[Explanation of symbols]

 1 Scaffolding for slope work 2 Slope 3 Base 4 Jack base 5 Assembly support pillar 6 Support bracket 7 Handrail pillar 8 Handrail 9 Scaffolding board 10 Connecting member 11 Spacing member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shiro Kawasaki 2-31-17 Kawazoe, Takatsuki City, Osaka Prefecture (72) Inventor Masao Kobashi 2533-5 Koshigaya, Koshigaya City, Saitama Prefecture (72) Masayoshi Omura Iwatsuki City, Saitama Prefecture 4-2-12-501 Honmachi (72) Iwamori Mori 3-2 Sengendai Nishi, Koshigaya City, Saitama Prefecture (72) Tetsuya Nagano 3-41-36 Hokuei, Urayasu City, Chiba Prefecture (72) Nobuhiro Tsuchiya Shibaura 1-3-2 Shibaura, Minato-ku, Tokyo (72) Inventor Yuichi Kikuchi 1-2-3 Shibaura Shibaura-shi, Minato-ku, Tokyo (72) Inventor Yoshiyuki Obara Minato-ku, Tokyo Shibaura 1-3, Shimizu Construction Co., Ltd. (72) Inventor Takashi Wada 1-3, Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Keiji Ono 1-2, Shibaura, Minato-ku, Tokyo -3 Shimizu Construction Ceremony In-house (72) Inventor Yoshiaki Negami 2-18-2 Kyobashi, Chuo-ku, Tokyo Within MIRUX CORPORATION

Claims (12)

[Claims] 1. A jack base equipped with a tilt angle adjusting mechanism to be mounted on a base of a slope base, and an assembly strut for connecting a lower end portion to the jack base and installing the jack base at predetermined intervals along the slope direction of the slope. A connecting member for connecting between the assembled columns, a column bracket having a diagonal member angle adjusting mechanism and locked to the assembled column, and a top portion of the column bracket can be changed by locking the tip of the scaffolding plate supporting member of the column bracket. A scaffold for slope work, comprising a handrail post with a height adjusting mechanism and a handrail that connects adjacent handrail posts. 2. The jack base is connected to a lower end portion of the assembling strut, and the height of the assembling strut can be changed stepwise by appropriately selecting an inserting position of an engaging pin. The scaffolding for slope work according to claim 1, characterized in that. 3. The strut bracket is characterized in that an upper end portion of a vertical member is hooked on a locking member of the assembly strut, and a lower end portion thereof is hooked on another locking member of the assembled strut. Item 1
Alternatively, the scaffolding for slope work according to claim 2. 4. The assembly support column comprises a combination of a pilot support column and an adjustment support column, which are connected by a support column joint and installed along the slope direction of the slope. Scaffolding for slope work described in any of the above. 5. The pilot strut and the adjustment strut each have the strut joint at the bottom of one steel pipe, have a strut joint fitting portion at the upper portion, and further have a strut bracket engaging portion and a connecting member. The scaffold for slope work according to any one of claims 1 to 4, further comprising a locking portion. 6. The scaffolding for slope work according to claim 1, wherein the jack base pivotally supports a screw rod with respect to a base plate. 7. The scaffolding for slope work according to any one of claims 1 to 6, wherein the assembly support column includes a spacing member that supports a lower end thereof on a slope. 8. The handrail post has a handrail locking member capable of adjusting the height of the handrail, and the handrail post is inserted into a sheath pipe provided at a tip end portion of the scaffold plate support member so that the height can be adjusted. The scaffolding for slope work according to any one of claims 1 to 7, which is supported. 9. The scaffolding for slope work according to claim 1, wherein the handrail is provided with a telescopic mechanism. 10. The scaffolding for slope work according to any one of claims 1 to 9, wherein the assembling support pillar is configured so that it can be installed by combining a lifting support pillar having a step rail. 11. The structure according to claim 10, wherein a lower end portion of the combined lifting / lowering column is configured to be connectable to an upper portion of a jack base which has an inclination angle adjusting mechanism and is mounted on a base of a sloped base. Scaffolding for slope work. 12. A jack base with a tilt angle adjusting mechanism is placed at a predetermined interval on a base of a slope base, and a lower end of an assembly support post is connected to the jack base to assemble the support along the slope direction of the slope. While extending, the connecting member is locked between the adjacent assembly columns, and the scaffold plate is attached to the scaffold plate support member of the column bracket that is horizontal by the diagonal member angle adjustment mechanism by locking it at the appropriate height of the assembly column. However, when carrying equipment on this scaffolding board or above the slope, move the handrail post with height adjustment mechanism that locks to the bracket tip to the low position,
A method for constructing a scaffold for slope work, characterized in that a handrail post and a handrail are fixed at a predetermined height when performing work on the scaffold plate.