JPH07119520B2 - Mobile scaffolding - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The invention of the present application is a mobile scaffold used for work such as finishing of the inner periphery of a building with a large space such as a large factory, a gymnasium, a hall,
In particular, the present invention relates to a movable scaffold in which side scaffolds used for finishing work such as a vertical inner peripheral wall of the building can be horizontally moved.

2. Description of the Related Art As a scaffold used for work such as finishing of the inner circumference of a building with a large space, two guide tracks are laid parallel to each other at a predetermined distance from the inner circumferential walls in the girder direction on both sides of the building. At least a pair of self-propelled carriages are placed on the track, columns are built on each self-propelled carriage, and the upper part of each strut is connected by a member in the beam direction and a member in the girder direction, etc. The main body is constructed, and a moving scaffold is formed by attaching an upper scaffolding board or the like on the upper part of the main body of the moving scaffold, and the movable scaffolding body is pivoted between the horizontal state and the vertical state on the lateral side of the girder row direction of the main body -Type side scaffolds are provided in multiple layers at intervals in the vertical direction, work such as finishing of the ceiling in the building is performed using the upper scaffold plate, and side walls in the girder direction in the building are used using the side scaffolds. Moving feet used for finishing the inside of a building that is designed to perform work such as A field has been proposed (Japanese Patent Laid-Open No. 62-101755).

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the moving scaffold, the multi-layered side scaffolds are rotatable, and when the moving scaffold is moved in the girder direction, the side scaffolds are located inside the circumferential wall in the girder direction of the building. It is necessary to rotate the side scaffolds of a plurality of layers from the horizontal state to the vertical state one by one so as not to collide with the projecting pillars and the like, and there is a drawback that the moving operation of the moving scaffold becomes complicated. In addition, since the side scaffolds are rotatable, it is difficult to provide a handrail on the side scaffolds, and there is a drawback that work safety such as finishing performed on the side scaffolds cannot be sufficiently secured.

The problem to be solved by the invention of this application is to provide a mobile scaffolding without the above-mentioned drawbacks, in other words, an operation for moving the side scaffolding forward and backward with respect to the inside of the side wall of the building is easy, and on the side scaffolding. The purpose is to provide a mobile scaffolding that ensures sufficient safety of work such as finishing.

Means for Solving the Problems The invention of this application adopts the following configuration as means for solving the above problems.

The construction of this application is such that at least a pair of guide tracks are laid in parallel on the floor of the building with a predetermined distance from the peripheral wall of the building, and at least a pair of self-propelled carriages are placed on each guide track, and each self-propelled Set up columns on the trolley, connect the upper parts of each column with members in the beam direction and members in the girder direction, etc. to form a moving scaffolding main body, and attach a scaffolding plate etc. to the upper part of this moving scaffolding body. In the formed mobile scaffold, at least a pair of guide rails extending substantially at right angles to the peripheral wall is provided mainly on the movable scaffold, and the lateral movement device is engaged with the guide rails to form a scaffold with handrails facing the peripheral wall of the building. The side scaffolds formed in multiple layers at intervals in the vertical direction are supported by the lateral movement device, and the side scaffolds can be moved back and forth with respect to the peripheral wall of the building by the operation of the driving means provided in the lateral movement device. Is characterized by In the mobile scaffold.

And in the preferred embodiment:
If the guide rail is provided on the upper part of the moving scaffolding body, the lateral moving device is engaged with the guide rail, and the side scaffolding is connected to the lateral moving device and hung, the supporting of the side scaffolding becomes easy.

Further, the side scaffolding support main body is formed by connecting at least a pair of suspension struts and at least a pair of lateral connecting members, and the scaffolds with handrails are vertically spaced on the peripheral wall side of the building of the side scaffolding support main body. When the side scaffold is formed by forming the side scaffold in multiple layers, it becomes easy to form the side scaffold. Stairs will be provided between the upper and lower layers of the multi-layer scaffold.

The side scaffold may be provided so as to be able to advance and retreat with respect to one or both peripheral walls of the girder direction of the building, or may be provided so as to be able to advance and retreat with respect to one or both peripheral walls of the building in the beam direction. Alternatively, the side scaffolds may be provided so as to be able to move forward and backward with respect to the peripheral wall in the girder direction and the peripheral wall in the beam direction of the building.

A limit switch that closes when the lateral movement device reaches a retracted position a predetermined distance from the peripheral wall of the building by the operation of the drive means is provided near the lateral movement device, and after the limit switch is closed, the prime mover of the self-propelled carriage is started. I will let you.

Except when the side scaffold is retracted, the side scaffold is fixed to the moving scaffold mainly using appropriate fixing means (sway prevention means) so that the side scaffold does not shake during use. .

When a guide roller device is used as the lateral moving device, at least one roller of the guide roller device can be positively driven by an appropriate driving means.

The mobile scaffold of the present invention is provided with at least a pair of guide rails extending substantially at right angles to the peripheral wall mainly on the mobile scaffold, and the lateral moving device is engaged with the guide rails so as to face the peripheral wall of the building. A side scaffold formed by forming a multi-layered scaffold at intervals in the up-down direction is supported by the lateral movement device, and the side scaffold is supported with respect to the peripheral wall of the building by the operation of the driving means provided in the lateral movement device. Since it can move forward and backward, the side scaffold can be moved back along the guide track with the side scaffold retracted to a position a predetermined distance from the peripheral wall of the building. Even if the pillar of the building projects, the moving scaffold can be easily moved without the pillar getting in the way.

Embodiment An embodiment of the mobile scaffold of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, a guide track 4 is installed on a floor surface 2 of a building 1 having a large space to be a factory, at a predetermined distance from the lower ends of both side walls 3 in the girder direction. Pillars 5 project at intervals inside both side walls 3 in the girder direction of the building 1.

At least one pair of self-propelled carriages on each of the above-mentioned guide tracks 4.
11 and put columns 12 on each self-propelled trolley 11 and each column
The upper ends of the 12 are connected by an upper transverse member 13 in the beam-to-beam direction, and a plurality of upper transverse members 14 in the column row direction are arranged on the upper transverse member 13 at intervals and joined together, and are arranged in the column row direction. A portion near the lower ends of the pair of columns 12 is connected by a lower lateral member 15 in the girder direction, and a portion slightly lower than the middle of the two columns 12 arranged in the beam direction is connected by a lower lateral member 16 in the beam direction, The middle of the lower horizontal member 16 and the upper horizontal member 13 is connected to the upper and lower connecting members 17.
To form the mobile scaffolding main body 10. Then, the member 18 in the beam direction is fixed on the upper lateral member 14 of the moving scaffolding main body 10, and the scaffold plate 19, the handrail 20, and the rod 21 supporting the net 22 are supported by the member 18, the lateral member 14 and the like. . Although not shown, an elevating staircase is arranged between the upper surface of the scaffolding plate 19 of the movable scaffolding body 10 and the floor surface 2.

The column 12, the upper lateral members 13 and 14, the lower lateral members 15 and 16, and the upper and lower connecting members 17 are formed by connecting space trusses ST as shown in FIGS. 4 and 5. The members 12 to 17 made of the space truss ST are connected to each other by using U-shaped bolts and nuts as shown in FIG. 6, for example. As the self-propelled carriage 4, for example, one having wheels that are positively driven by starting of a prime mover such as an electric motor is used.

As shown in FIGS. 9 and 10, the lateral moving device 30 is attached to the upper lateral member 14 of the moving scaffolding main body 10. The lateral movement device 30 includes a guide rail 31, guide roller devices 32A and 32B, a support 33, and the like.

The pair of guide rails 31 are fixed to the lower sides of the two upper lateral members 14 on the circumferential wall side in the girder direction in the beam direction. That is, the H-shaped steel guide rail 31 has a plurality of mounting plates on its upper surface.
Weld 31a, and attach a pair of U bolts to the two pairs of holes in each mounting plate 31a.
31b is passed through, and the nut 31c is screwed into the threaded portion, and fixed to the upper lateral member 14. A pair of guide roller devices 32A and 32B are attached to each guide rail 31 at intervals.

The guide roller device 32A has a roller 32b ₁ rotatably supported by a shaft 32c ₁ fixed to _one suspension plate 32a ₁ , and a roller 32b ₂ supported by a shaft 32c ₂ rotatably supported by the other suspension plate 32a _{2. 2} is fixed, the chain wheel 32d is fixed to the outer end of the shaft 32c ₂ , a long endless chain 32e is hung on the chain wheel 32d, and the suspension plates 32a ₁ and 32a ₂ are respectively attached to the pair of through holes. They are connected to each other through a connecting shaft 32b described later. Each roller 32b ₁ and 32b ₂ is a guide rail 31.
Engages the upper surface of the lower flange of the H-section steel. The guide roller device 23B is such that each roller is supported by a shaft fixed to each hanging plate so as to be rotatable.
Although different from A, it is substantially the same as the guide roller device 32A in other points.

The support 32 that supports the side-moving scaffold 40 is made of H-shaped steel, and has hanging pieces at two spaced positions on the upper surface of the support 33.
33a is welded, and a pair of through holes are formed in the hanging piece 33a so as to match the through holes formed in the hanging plates 32a ₁ and 32a ₂ .
The connecting shaft 32b is passed through each through hole so that the connecting shaft 33c cannot be disengaged with a nut. The support 33 is connected to the movable scaffolding main body 10 via the guide roller device 32 and the guide rail 31.

The limit switch 34 is fixed with bolts and nuts at a position near the inner end of the lower flange of each guide rail 31, and a pair of lower limit flanges of each guide rail 11 are spaced apart. The stopper 35 is fixed with bolts and nuts to regulate the moving range of the guide roller devices 32A and 32B.

A mounting plate 33c is welded to the lower surface of the tip of the support 33, a U bolt 33d is passed through the hole, and a nut 33e is screwed into the threaded portion to support the upper lateral connecting member 42 of the side scaffold support main body 41 as a support.
Fix at 33.

As shown in FIGS. 11A and 11B, the side scaffold support main body 41 fixes the upper ends of the suspension struts 43, 44 to both ends of the upper horizontal connecting member 42, and the upper end of the suspension stanchion 45 at the center of the member 42. And the lower ends of the suspension columns 43 to 45 are fixed to both ends and the center of the lower horizontal connecting member 46. The upper and lower lateral connecting members 42 and 46 and the suspension columns 43 to 45 also continuously form a space truss ST as shown in FIGS. 4 and 5.
The configuration shown in FIG. 6 is also used in the case of the members 42 to 46 formed of the space truss ST.

As shown in FIG. 11A, FIG. 12A, and FIG. 13, a horizontal support pipe in the beam direction is used in the lower part of the suspension columns 43 and 44 of the side scaffolding support body 41 and the lower horizontal connecting member 46 by using a clamp device or the like.
Clamping device 47 is fixed, and two supporting horizontal tubes 48 are fixed in parallel to the peripheral wall side portion of the horizontal supporting tube 47 by using a clamping device or the like, and the fixing device is fixed to the supporting horizontal tube 48 (C in the figure is a clamping device. ) Are used to fix the vertical short pipes 49 for the scaffolding frame, and the handrail pipes 50 and 51 are fixed to the upper end and the middle of the vertical short pipes 49 using a clamp device or the like, and the first layer handrails are fixed. Scaffolding
Forming 52.

The horizontal support pipes 53, 54 in the beam-to-beam direction are fixed to the lower lateral connecting member 46 of the side scaffolding support body 41 by using a clamp device or the like, and are separated from the inner ends of the horizontal support pipes 53, 54 and the end portions thereof. The vertical short pipes 55, 56, etc. are fixed to the vertical positions by using a clamp device, etc., and the handrail pipes 57, 58, etc. are fixed by using a clamp device, etc. at the upper ends and midways of the vertical short pipes 55, 56. The first stairs 59 are detachably attached to the inner portion of the horizontal support pipe 54, and the handrail pipes are arranged on both sides of the stairs 59. Further, the steel scaffolding plate SP is mounted on the horizontal support tubes 53, 54.

Outside the suspension columns 43, 44 at both ends of the side scaffolding supporting body 41,
At approximately equal intervals in the vertical direction, the middle of the flat beam truss 60 shown in FIG. 7 and FIG. 8, the upper and lower main pipes are clamped to the main pipes of the space truss ST constituting the suspension columns 43 and 44, etc. Use the to fix it detachably. Similarly, the midpoint of the flat beam truss 60 is fixed to both sides of the suspension column 45 at the center of the side scaffolding support body 41 at the same intervals and in the same manner as described above.

A pair of supporting horizontal tubes 61 are fixed in parallel to the upper main pipe of each flat beam truss 60 using a clamp device or the like, and each flat beam truss is fixed.
The vertical short pipe 62 for the scaffolding frame is fixed to the end portion on the wall side of 60, a position apart from the end, the middle of the support horizontal long pipe 61, etc. by using a clamp device, etc. The horizontal pipes 63, 64 for handrails are hung between the upper ends of 62, and the horizontal pipes 63, 64 are fixed to the upper ends of the vertical short pipes 62 by using a clamp device or the like, and the second to sixth layers
Form scaffolds 66, 67, 68, 69, 70 with layers of railings. If necessary, the horizontal long pipe 65 is fixed in the middle of each vertical short pipe 62 by using a clamp device or the like.

The support pipes 71, 72, 73 in the beam direction are fixed to the scaffolds 52, 66 to 70 with handrails of the first to sixth layers at the landing formation positions of the pair of support elongated pipes 48 and 61.

A second stair 75 is removably fixed between the portion 54a of the horizontal support tube 54 of the first layer scaffold 52 and the inner portion 71a of the support tube 71 of the second layer scaffold 66. Similarly, a main pipe portion 60a is provided above the flat beam truss 60 of the second to fifth layer scaffolds 66 to 69, and an inner portion 72a of the support pipe 72 of the third to sixth layer scaffolds 67 to 70. Third to sixth stairs 76, 77, 78, 79 in between
Secure the detachable.

At the inner ends of the support pipes 71, 72, 73 or at positions apart from the inner ends, the lower ends of the vertical short pipes 80 for supporting the main stairs of the stairs are fixed using a clamp device or the like.

A handrail pipe 81 is attached to the upper end and the middle of the vertical short pipe 80. A steel scaffolding plate SP is mounted on the supporting pipes 71, 72, 73, and a steel scaffolding plate SP is also provided on the bottom of the scaffolding frames 52, 66, 70 of the first to sixth layers.
Install.

As shown in FIG. 14, fixing means 90 is provided between the side scaffolding support body 41 and the moving scaffolding body 10. The fixing means 90 is a clamp 91 fixed to the main pipe of the space truss ST of the lower lateral connecting member 15 of the moving scaffolding main body 10 and a clamp fixed to the main pipe of the space truss ST of the lower lateral connecting member 46 of the side scaffolding supporting body 41. 92
And a fixed tube 93 which is fixed by two clamps 91 and 92 so that the position can be adjusted.

Next, how to use the mobile scaffold of the embodiment will be described. Positioning the self-propelled carriage 11 of the moving scaffolding 10 on the guide track 4 near the end in the column direction of the building 1 with large space, and its scaffolding board
A worker is placed on the 19 to assemble the members of the ceiling of the building 1,
Perform work such as finishing. Building 1 using side scaffolding 40
When finishing the peripheral wall 3 and the like in the column direction, the clamps 91 and 92 of the fixing means 90 are loosened and the connection between the side scaffolding support body 41 and the moving scaffolding body 10 by the fixed pipe 93 is released. Then, the endless chain hung on the chain wheel 32d of each guide roller device 32A
Pull one side of 32e from the floor or the like to rotate the chain wheel 32d, positively rotate the roller 32b ₂ of each guide roller device 32A, and move the support 33 toward the peripheral wall 3 of the building 1 to support it. The side scaffold 40 supported by the body 33 is brought close to the peripheral wall 3 of the building 1. When the guide roller device 32B hits the outer stopper 35, the support body 33 connected to the guide roller devices 32A and 32B stops. In this state, the clamps 91 and 92 of the fixing means 90 are tightened, and the side scaffolding support main body 41 and the moving scaffold main body 10 are fixed by the fixing rod 93 so as not to shake. Then, the first to sixth layer scaffolds 52, 66 attached to the side scaffold support body 41
Using No. 70 to 70, work such as finishing of the peripheral wall 3 in the girder direction of the building 1 is performed.

When the work such as finishing of the ceiling and peripheral walls of the building 1 corresponding to the moving scaffold is completed, loosen the clamps 91 and 92 of the fixing means 91,
The connection between the side scaffold support main body 41 and the moving scaffold main body 10 by the fixed pipe 91 is released, the other endless chain 32e hung on the chain wheel 32d of the guide roller device 32A is pulled from the floor or the like, and the chain wheel 32d is reversed. The guide roller device 32A is rotated in the direction until it contacts the inner stopper 35, and the side scaffold 40 supported by the support 33 is separated from the peripheral wall 3 of the building 1. Then, the hanging piece 33a of the support 33 hits the limit switch 34, and the limit switch 34 is closed. In this state, clamp the fixing means 90
The side scaffolding support body 41 and the moving scaffolding main body 10 are fixed so as not to shake with the fixing tube 93 by tightening 91 and 92.

The limit switch 34 is arranged in a power circuit of an electric motor, which is a prime mover of the self-propelled trolley 3.
When 34 is closed and current is supplied to the circuit, the electric motor is started, the wheels of the self-propelled carriage 11 are rotated, and the moving scaffolding main body 10 is guided along the guide start 4 to the length in the column row direction. Move approximately the same distance to stop supplying current to the circuit.

Next, as described above, the clamps 91, 92 of each fixing means 90 are
To release the connection between the side scaffold support main body 41 and the moving scaffold main body 10 by the fixed pipe 93, and the chain wheel 3 of each guide roller device 32A.
Pull one of the endless chains 32e hung on 2d from the floor etc.
By rotating 2d, the roller 32b ₂ of each guide roller device 32A is positively rotated by the rotation of the chain wheel 32d, and the guide roller device 32B is moved until it hits the outer stopper 35, and the side supported by the support body 33. The club scaffold 40 is brought close to the peripheral wall 3 of the building 1. In this state, the clamp 91 of each fixing means 90,
By fastening 92, the fixed tube 93 is fixed to the side scaffolding supporting body 41 and the moving scaffolding supporting body 10, and the scaffolds 52, 66 of the first to sixth layers of the side scaffolding 40 attached to the side scaffolding supporting body 41. No
70 is used to finish the peripheral wall 3 of the building 1 in the girder direction. Thereafter, similar operations are repeated to perform work such as finishing of the entire ceiling and peripheral walls of the building 1.

EFFECTS OF THE INVENTION Since the moving scaffold of the present invention moves the moving scaffold along the guide track with the side scaffold retracted to a position separated from the peripheral wall of the building by a predetermined distance, Even if the pillars of the building project from the inside of the building, the pillars do not get in the way and the moving scaffold can be easily moved.
Further, since the side scaffold consisting of scaffolds with multi-layered handrails can be moved to a position where the work can be performed easily by a desired distance from the peripheral wall of the building by the operation of the driving means provided in the lateral movement device, Work such as finishing can be performed efficiently and safely on a scaffold with handrails.

If the guide rail is provided in the upper part of the main body of the moving scaffold and the lateral scaffold is connected to the lateral moving device engaged with the guide rail to suspend the side scaffolding, the supporting of the side scaffolding becomes easy.

Further, the side scaffolding support main body is formed by connecting at least a pair of suspension struts and at least a pair of lateral connecting members, and the scaffolds with handrails are vertically spaced on the peripheral wall side of the building of the side scaffolding support main body. If the side scaffolds are formed by mounting the scaffolds in multiple layers, the side scaffolds can be easily formed.

If the lateral movement device is provided with a limit switch that closes when it reaches a retracted position that is a distance away from the peripheral wall of the building, and the prime mover of the self-propelled truck is started after the limit switch is closed, the vehicle moves along the guide track. When the scaffold is moved, the moving scaffold can be smoothly moved without the side scaffold colliding with the pillar projecting inside the peripheral wall of the building.

[Brief description of drawings]

The drawings show an embodiment of the mobile scaffold of the present invention.
The figure is a front view of a mobile scaffolding subject, etc., FIG. 2 is a side view of that of FIG. 1, FIG. 3 is a plan view of that of FIG. 1, and FIG. 4 constitutes a mobile scaffolding subject and side scaffolding support subject. A front view of the space truss, FIG. 5 is an end view of the one shown in FIG. 4, and FIG. 6 is a front view showing the structure of the joint between the space truss and the space truss.
FIG. 7 is a front view of a plane truss, FIG. 8 is an end view of the thing of FIG. 7, FIG. 9 is a side view of a lateral movement device, FIG. 10 is a front view of the thing of FIG. 9, FIG. 11A and FIG. FIG. 11B is a side view showing the lower and upper halves of a side scaffold, etc., FIGS. 12A and 12B.
The figure shows the front view showing the lower half and the upper half of the side scaffold, etc.
FIG. 13 is a plan view of a side scaffold and the like, and FIG. 14 is a front view of the fixing means. In the figure, 1 is a building with a large space, 2 is a floor, 3 is a side wall, 4
Is a guide track, 5 is a pillar, 10 is mainly a moving scaffold, 11 is a self-propelled trolley, 12 is a pillar, 19 is a scaffold plate, 30 is a lateral moving device, 31 is a guide rail, 32A and 32B are guide roller devices, 33 Is a support, 34 is a limit switch, 35 is a stopper, 40 is a side scaffolding, 41 is a side scaffolding support body, 42 is an upper lateral connecting member, 4
3, 44 and 45 are suspension columns, 46 is a lower lateral connecting member, 52 is a scaffold with handrails of the first layer, 60 is a flat beam truss, 66 to 70
Is a scaffold with 2nd to 6th layers railings, 59, 75 to 79
Is stairs, 90 is a fixing means, SP is a scaffolding board, and ST is a space truss.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minor Ochiai 8-21-1, Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Kyosuke Sato 8-21, Ginza, Chuo-ku, Tokyo No. 1 Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Masaya Osawa 9-4-2 Higashikasai, Edogawa-ku, Tokyo Inside Anzen Kikou Co., Ltd.

Claims (5)

[Claims] 1. A self-propelled trolley on which at least a pair of guide tracks are laid in parallel on a floor of the building with a predetermined distance from the peripheral wall of the building and at least a pair of self-propelled carriages are mounted on each of the guide tracks. A pillar is erected on each of the above, and the upper part of each pillar is connected by a member in the beam direction and a member in the girder direction to form a moving scaffolding main body, and a scaffolding board etc. is attached to the upper part of this moving scaffolding main body. In the moving scaffold, at least a pair of guide rails extending substantially at right angles to the peripheral wall are provided mainly on the moving scaffold, and the lateral moving device is engaged with the guide rails to raise and lower the scaffold with handrails facing the peripheral wall of the building. Supporting lateral side scaffolds formed in multiple layers at intervals in the direction by the lateral movement device, and enabling the lateral scaffolds to advance and retreat with respect to the peripheral wall of the building by the operation of the driving means provided in the lateral movement device. Move characterized by Place. 2. A pair of guide tracks are laid parallel to each other on the floor of the building with a predetermined distance from the peripheral wall, and at least a pair of self-propelled carriages are placed on the guide tracks. Each of the columns is erected, and the upper part of each column is connected by a member in the beam direction and a member in the girder direction to form a moving scaffolding main body, and a scaffold plate etc. is attached to the upper part of this moving scaffolding body to form the movement In the scaffold, at least a pair of guide rails that extend substantially at right angles to the peripheral wall are provided on the upper part of the movable scaffold, and a lateral movement device is engaged with the guide rails, and at least a pair of suspension columns and at least a pair of lateral connecting members. To form a side scaffolding support main body, the upper part of the side scaffolding support main body is connected to the lateral movement device and lifted, and a scaffold with handrails on the peripheral wall side of the side scaffolding support main body is vertically moved. Many at intervals Forming a side scaffold attached to, by the operation of the drive means provided in the transverse moving device, moving scaffolding being characterized in that to be able to advance and retreat the side scaffold against the peripheral wall. 3. A pair of guide tracks are laid parallel to each other on the floor of the building at a predetermined distance from the peripheral wall in the girder direction, and at least a pair of self-propelled carriages are placed on the respective guide tracks. A support pillar is erected on the top of each support pillar, and the upper part of each support pillar is connected by a member in the beam direction and a member in the girder direction to form a moving scaffolding main body, and a scaffolding board is attached to the upper part of the moving scaffolding main body. In the moving scaffold, a pair of guide rails extending in the beam direction are provided on one or both upper portions of the moving scaffold main body, a guide roller device is attached to each guide rail, and a support body is connected to the guide roller device to connect at least one pair of guide rails. A building of a side scaffolding supporting body, in which a suspension scaffold and at least a pair of lateral connecting members are combined to form a side scaffolding supporting body, and the side scaffolding supporting body is connected to and suspended from the support body at an upper portion thereof. Hand on the side wall Side scaffolds are formed by vertically attaching a plurality of scaffolds at intervals in the vertical direction to form side scaffolds, and at least one roller is positively rotated by the operation of the drive means provided in the guide roller device, thereby forming the side scaffolds. A mobile scaffold characterized by being able to move back and forth with respect to the circumferential wall in the girder direction. 4. A limit switch is provided which is closed when the lateral movement device reaches a position separated from the peripheral wall by a predetermined distance, and after the limit switch is closed, the prime mover of the self-propelled carriage is activated to guide the moving scaffolding subject. 4. A mobile scaffold according to any one of claims 1 to 3, characterized in that it is moved along it. 5. The mobile scaffold according to any one of claims 1 to 4, wherein the position of the side scaffold with respect to the main body of the mobile scaffold can be fixed.