Suspended scaffold device and assembly method of suspended scaffold device

Abstract

To provide a suspended scaffold device and an assembly method of the suspended scaffold device allowing people and products to be prevented from falling down when assembling additional parts for the suspended scaffold device.SOLUTION: A suspended scaffold device comprises a scaffold including an already-installed part and an additional part, wherein the additional part is assembled with the already-installed part, as a starting point, suspended from a structure beforehand. The scaffold has: a frame part having beam materials, and connection means for rotatably connecting the plurality of beam materials, and fixing means for limiting the rotation of the beam materials by the connection means; and scaffold boards supported on the frame part. The suspended scaffold device further comprises suspending means and a protection net. A first beam material arranged in parallel with a first direction out of the beam materials constituting the additional part is configured to be arranged in parallel with the first direction through rotation of the other end in a horizontal surface after being connected to first connection means which is one connection means where one end constitutes an end part in the first direction of the already-installed part. The protection net is deployed between the already-installed part and the first beam material as the other end of the first beam material rotates in the horizontal surface.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The technology disclosed in this specification relates to a suspended scaffolding apparatus and a method for assembling the suspended scaffolding apparatus. [Background technology]

[0002] When work at height is required in the construction of structures such as buildings and civil engineering structures, and it is difficult to set up scaffolding on the ground due to the shape of the ground, for example, a suspended scaffolding system is used. The suspended scaffolding system includes a scaffolding and a suspending means for suspending the scaffolding from the structure.

[0003] Conventionally, a work platform support system has been disclosed in which a new section can be installed on a pre-assembled section (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5506154 Summary of the Invention [Problem to be solved by the invention]

[0005] The scaffolding of the suspended scaffolding system, including the work platform support system, includes an existing section and an additional section, and workers assemble the additional section while standing on the existing section. Therefore, there is a risk of people or objects falling during the assembly of the additional section.

[0006] This specification discloses a technique that can solve the above-mentioned problems. [Means for solving the problem]

[0007] The technology disclosed in this specification can be realized, for example, in the following forms.

[0008] (1) The suspended scaffolding device disclosed in this specification includes a scaffolding including an existing part and an additional part, and the additional part is assembled in a first direction parallel to the horizontal direction starting from the existing part that is suspended in advance from a structure. The scaffolding includes a frame part and a scaffolding board. The frame part includes a beam member, a connecting means for connecting a plurality of the beam members to each other so as to be rotatable relative to the connecting means, and a fixing means for fixing the beam members so as to be arranged in the first direction or in a second direction parallel to the horizontal direction and perpendicular to the first direction by restricting the rotation of the beam members by the connecting means. The scaffolding board is supported by the frame part. The suspended scaffolding device further includes a hanging means for hanging the scaffolding from the structure, and a protective net. A first beam member among the beam members constituting the additional portion, which is arranged parallel to the first direction, is configured so that when the additional portion is assembled, one end is connected to a first connecting means, which is one of the connecting means constituting an end portion of the existing portion in the first direction, and the other end is rotated in a horizontal plane to be arranged parallel to the first direction, and the protective net is spread between the existing portion and the first beam member as the other end of the first beam member rotates in a horizontal plane.

[0009] With this suspended scaffolding device, the protective net is spread between the existing section and the first beam as the other end of the first beam rotates in the horizontal plane, thereby preventing people or objects from falling when assembling the additional section.

[0010] (2) In the above-mentioned suspended scaffolding device, the scaffolding may further have a support attached to the connecting means and extending in a direction intersecting the horizontal direction, a second connecting means is connected to the other end of the first beam, and the protective net may be supported by the support attached to the second connecting means and the multiple supports constituting the existing part when the other end of the first beam rotates in a horizontal plane. According to this configuration, the protective net is supported by the support attached to the second connecting means and the multiple supports constituting the existing part, so that the protective net is spread between the existing part and the first beam as the other end of the first beam rotates in a horizontal plane. Therefore, it is possible to more effectively prevent people or objects from falling when assembling the additional part.

[0011] (3) In the above-mentioned suspended scaffolding device, the second beam member, which faces the first beam member in the second direction among the beam members constituting the additional part, may be configured such that, when assembling the additional part, one end of the second beam member is connected to the third connecting means, which is the other connecting means constituting the end of the existing part in the first direction, and the other end of the second beam member rotates in a horizontal plane to be arranged parallel to the first direction, and the protective net is configured to be spread between the existing part, the first beam member, and the second beam member as the other end of the second beam member rotates in a horizontal plane. According to this configuration, the protective net is spread between the existing part, the first beam member, and the second beam member as the other end of the second beam member rotates in a horizontal plane, so that it is possible to more effectively prevent people or objects from falling when assembling the additional part.

[0012] (4) In the above-mentioned suspended scaffolding device, the scaffolding may further have a support attached to the connecting means and extending in a direction intersecting the horizontal direction, a second connecting means is connected to the other end of the first beam, a fourth connecting means is connected to the other end of the second beam, and the protective net may be supported by the support attached to the second connecting means, the support attached to the fourth connecting means, and a plurality of the supports constituting the existing part when the other end of the second beam rotates in a horizontal plane. According to this configuration, the protective net is supported by the support attached to the second connecting means, the support attached to the fourth connecting means, and a plurality of the supports constituting the existing part, so that as the other end of the second beam rotates in a horizontal plane, the protective net is spread between the existing part, the first beam, and the second beam. Therefore, it is possible to more effectively prevent people or objects from falling when assembling the additional part.

[0013] (5) The method for assembling a suspended scaffolding device disclosed in this specification is a method for assembling a suspended scaffolding device comprising a scaffolding including an existing part and an additional part, and in which the additional part is assembled in a first direction parallel to the horizontal direction starting from the existing part that is suspended in advance from a structure. The method for assembling the suspended scaffolding device comprises a first step, a second step, and a third step. The first step is a step of preparing the existing part in the scaffolding, and the scaffolding has a frame part, a scaffolding board, and a support. The frame part has a beam and a connecting means, which is a connecting means for connecting a plurality of the beams to each other so as to be rotatable relative to the connecting means, and a fixing means for fixing the beams so as to be arranged in the first direction or in a second direction parallel to the horizontal direction and perpendicular to the first direction by restricting the rotation of the beams by the connecting means. The scaffolding board is supported by the frame part. The support pillar is attached to the connecting means and extends in a direction intersecting the horizontal direction. The second step is a step of suspending the existing portion from the structure by a hanging means. The third step is a step of providing a first beam member arranged parallel to the first direction among the beam members constituting the additional portion, in which one end of the first beam member is connected to a first connecting means which is one of the connecting means constituting an end portion in the first direction of the existing portion, a second connecting means is connected to the other end of the first beam member, a protective net is attached so as to be supported by the support pillar attached to the second connecting means and the multiple supports constituting the existing portion, and the protective net is spread between the existing portion and the first beam member as the other end of the first beam member is rotated in a horizontal plane so that the first beam member is arranged parallel to the first direction.

[0014] According to the method for assembling the suspended scaffolding device, the protective net is attached so as to be supported by the support attached to the second connecting means and the multiple supports constituting the existing section, and as the other end of the first beam is rotated in a horizontal plane, the protective net can be spread between the existing section and the first beam, thereby preventing people or objects from falling when assembling the additional section.

[0015] (6) The above-mentioned method for assembling the suspended scaffolding device may further include a fourth step of providing a second beam member that faces the first beam member in the second direction among the beam members that constitute the additional part, wherein one end of the second beam member is connected to a third connecting means that is the other connecting means that constitutes an end portion of the existing part in the first direction, and a fourth connecting means is connected to the other end of the second beam member, and the protective net is attached so as to be supported by the pillar attached to the second connecting means, the pillar attached to the fourth connecting means, and a plurality of the pillars that constitute the existing part, and the protective net is spread between the existing part, the first beam member, and the second beam member as the other end of the second beam member is rotated in a horizontal plane so that the second beam member is arranged parallel to the first direction. According to this configuration, the protective net is attached so as to be supported by the support pole attached to the second connecting means, the support pole attached to the fourth connecting means, and the multiple supports constituting the existing section, and as the other end of the second beam is rotated in a horizontal plane, the protective net spreads between the existing section, the first beam, and the second beam, which makes it possible to more effectively prevent people and objects from falling when assembling the additional section. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is an explanatory diagram illustrating a schematic configuration of a suspended scaffolding device 10 according to an embodiment of the present invention. [Diagram 2] Detailed configuration of the frame portion 140 [Diagram 3] Flowchart showing a method for assembling the suspended scaffolding device 10 [Figure 4] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Diagram 5] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Figure 6] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Figure 7] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Figure 8]FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Figure 9] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Figure 10] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. [Figure 11] FIG. 1 is an explanatory diagram showing a schematic assembly method of the suspended scaffolding device 10. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A. Embodiment: A-1. Configuration of the suspended scaffolding device 10: FIG. 1 is an explanatory diagram that shows a schematic configuration of a suspended scaffolding device 10 in this embodiment. FIG. 1 shows X, Y and Z axes that intersect perpendicularly to each other to specify directions. In this specification, the X-axis direction and the Y-axis direction are parallel to the horizontal direction, and the Z-axis direction is parallel to the vertical direction (the positive Z-axis direction is the upward direction, and the negative Z-axis direction is the downward direction). The same applies to FIG. 2 and subsequent figures. Note that the X-axis direction and the Y-axis direction do not need to be strictly parallel to the horizontal direction, and may have a certain inclination with respect to the horizontal direction. The X-axis direction is an example of a first direction. The Y-axis direction is an example of a second direction.

[0018] The suspended scaffolding device 10 includes a scaffolding 100 including an existing part EP and an additional part AP, and is configured so that the additional part AP is assembled in the X-axis direction starting from the existing part EP that is suspended in advance from a structure. In addition to the scaffolding 100, the suspended scaffolding device 10 includes a suspension means 200 and a protective net 300.

[0019] The scaffolding 100 is a work floor that serves as a foothold for workers in the construction of a structure. The scaffolding 100 has a frame section 140, posts 150, handrails 160, and scaffolding boards 170. Fig. 2 shows a detailed configuration of the frame section 140. The frame section 140 has beams 110, connecting means 120, and fixing means 130. In addition, the connecting means 120 has connecting nodes 121 and node pins 122.

[0020] The frame section 140 constitutes an outer frame that supports the scaffolding board 170 of the scaffolding 100. The beams 110 are arranged parallel to the X-axis direction or the Y-axis direction when the scaffolding 100 is assembled. The connecting means 120 connects the multiple beams 110 to each other so that they can rotate freely with respect to the connecting means 120. Specifically, the beams 110 and the connecting nodes 121 each have a hole through which the node pin 122 can be inserted, and the multiple beams 110 can be connected to each other so that they can rotate freely with the node pin 122 as a base point by inserting the node pin 122 while the holes formed in the beams 110 and the connecting nodes 121 are connected to each other. The fixing means 130 fixes the beams 110 so that they are arranged parallel to the X-axis direction or the Y-axis direction by restricting the rotation of the beams 110 by the connecting means 120. Specifically, a hole is formed in the beam material 110 through which the fixing means 130 can be inserted, and a notch is formed in the connecting node 121 into which the fixing means 130 fits. By inserting the fixing means 130 into the beam material 110 so that the fixing means 130 fits into the notch formed in the connecting node 121, the rotation of the beam material 110 can be restricted.

[0021] The pillars 150 are attached to the connection nodes 121 of the connection means 120 and extend in the positive direction of the Z axis that intersects the horizontal direction. The pillars 150 are attached to the connection nodes 121 that are arranged at the end of the scaffolding 100 in the X axis direction or the end of the scaffolding 100 in the Y axis direction.

[0022] The handrail 160 is attached so as to be supported by the support posts 150, and extends in the X-axis or Y-axis direction.

[0023] The scaffolding board 170 is a plate-shaped member that serves as a foothold for construction workers. The scaffolding board 170 is supported by the frame portion 140.

[0024] The scaffolding 100 has four beams 110, four connecting means 120, four fixing means 130, and a scaffolding board 170 as basic structural units. Specifically, each connecting means 120 connects each beam 110 so that a quadrilateral is formed by the four beams 110. Each fixing means 130 restricts the rotation of the beam 110 so that a rectangle is formed by the four beams 110. A configuration in which the scaffolding board 170 is arranged on this becomes a basic structural unit. In addition, one basic structural unit and another basic structural unit adjacent to the one basic structural unit are connected by the connecting means 120. That is, the connecting means 120 connects the beam 110 included in one basic structural unit to the beam 110 included in the other basic structural unit, in other words, the connecting means 120 is shared between one basic structural unit and another basic structural unit adjacent to the one basic structural unit.

[0025] The suspending means 200 suspends the scaffolding 100 from the structure. The suspending means 200 is, for example, a chain-like member. One end of the suspending means 200 is attached to the connecting node 121 by a chain slot 124 formed in the connecting node 121, and the other end is attached to the structure.

[0026] The protection net 300 is used to prevent people or objects from falling during the assembly of the additional part AP. The protection net 300 will be described in detail later.

[0027] A-2. Method of assembling the suspended scaffolding device 10: Fig. 3 is a flow chart showing a method for assembling the suspended scaffolding device 10. Fig. 4 to Fig. 11 are explanatory diagrams that outline the method for assembling the suspended scaffolding device 10. For convenience, Fig. 4 to Fig. 11 show a method for assembling the additional part AP starting from an existing part EP consisting of one basic structural unit, but the same procedure can also be used when assembling the additional part AP starting from an existing part EP consisting of a plurality of basic structural units.

[0028] First, the existing section EP of the scaffolding 100 is prepared (S11). The existing section EP is prepared on the ground. Specifically, first, a plurality of beams 110 are connected to each other by the connecting means 120, and the rotation of the beams 110 is restricted by the fixing means 130, so that the frame section 140 is formed so that the four beams 110 have a rectangular shape when viewed in the vertical direction. After the frame section 140 is formed, the scaffolding board 170 is attached to the frame section 140 so that the scaffolding board 170 is supported by the frame section 140. In addition, the existing section EP is assembled by attaching the support 150 to the connecting node 121 and attaching the handrail 160 to the support 150. The step of S11 is an example of the first step.

[0029] Next, the existing part EP is suspended from the structure (S12). Specifically, first, one end of the suspension means 200 is attached to the connecting node 121. Then, the existing part EP is suspended, for example, by a hoist or the like attached to the structure. Thereafter, the other end of the suspension means 200 is attached, for example, to a suspension bolt or the like attached to the structure, thereby suspending the existing part EP from the structure. The step of S12 is an example of the second step.

[0030] Next, a first beam 110A is provided (S13). The first beam 110A is a beam 110 that is arranged parallel to the X-axis direction among the beams 110 that constitute the additional part AP. As shown in FIG. 4, one end of the first beam 110A is connected to a first connecting means 120A, which is one connecting means 120 that constitutes the end of the existing part EP in the X-axis direction. The other end of the first beam 110A is connected to a second connecting means 120B that constitutes the frame part 140 of the additional part AP.

[0031] Next, the protective net 300 is installed as shown in Fig. 5. The protective net 300 is installed so as to be supported by the support posts 150 attached to the second connecting means 120B and the multiple support posts 150 constituting the existing portion EP (in this embodiment, the support posts 150 attached to the first connecting means 120A and the support posts 150 attached to the third connecting means 120C described later).

[0032] Next, as shown in Fig. 6, the other end of the first beam 110A is rotated in a horizontal plane so that the first beam 110A is arranged parallel to the X-axis direction, and the protective net 300 is spread between the existing portion EP and the first beam 110A. The first beam 110A can be rotated by pushing the first beam 110A using, for example, a rod-shaped member. After the first beam 110A is arranged parallel to the X-axis direction, the rotation of the first beam 110A is restricted by the fixing means 130. The step S13 is an example of the third step.

[0033] Next, a second beam 110B is provided (S14). The second beam 110B is a beam 110 that faces the first beam 110A in the Y-axis direction among the beams 110 that constitute the additional part AP. As shown in FIG. 7, one end of the second beam 110B is connected to a third connecting means 120C, which is another connecting means 120 that constitutes the end of the existing part EP in the X-axis direction. The other end of the second beam 110B is connected to a fourth connecting means 120D that constitutes the frame part 140 of the additional part AP.

[0034] Next, the mounting position of the protective net 300 is changed as shown in Fig. 8. The protective net 300 is mounted so as to be supported by the support posts 150 attached to the second connecting means 120B, the support posts 150 attached to the fourth connecting means 120D, and the multiple support posts 150 constituting the existing portion EP (in this embodiment, the support posts 150 attached to the first connecting means 120A and the support posts 150 attached to the third connecting means 120C).

[0035] Next, as shown in FIG. 9, the other end of the second beam 110B is rotated in a horizontal plane so that the second beam 110B is arranged parallel to the X-axis direction, and the protective net 300 is spread between the existing portion EP, the first beam 110A, and the second beam 110B. The second beam 110B can be rotated by pushing the second beam 110B using, for example, a rod-shaped member. After the second beam 110B is arranged parallel to the X-axis direction, the rotation of the second beam 110B is restricted by the fixing means 130. The step S14 is an example of the fourth step.

[0036] Next, the remaining part of the additional part AP is assembled (S15). As shown in Fig. 10, an assembly scaffold 146 is attached to the first beam 110A and the second beam 110B, and the assembly scaffold 146 is used as a foothold to attach the small beam 142 disposed between the first beam 110A and the second beam 110B, and the grandchild beam 144 disposed between the small beam 142 and the beam 110 constituting the end of the existing part EP. After that, the assembly scaffold 146 is removed, and the first scaffold 170A, which is the scaffold board 170 on the X-axis negative side of the additional part AP, is placed.

[0037] Similarly, the assembly scaffold 146 is attached again, and using the assembly scaffold 146 as a foothold, the third beam 110C connected to the second connecting means 120B and the fourth connecting means 120D, and the grandchild beam 144 disposed between the small beam 142 and the third beam 110C are attached. After that, the assembly scaffold 146 is removed, and the second scaffold 170B, which is the scaffold board 170 on the X-axis positive side of the additional part AP, is placed. As a result, one basic structural unit of the additional part AP is assembled as shown in FIG.

[0038] A-3. Advantages of this embodiment: As described above, the suspended scaffolding device 10 includes a scaffolding 100 including an existing part EP and an additional part AP, and the additional part AP is assembled in the X-axis direction parallel to the horizontal direction starting from the existing part EP that is suspended in advance from the structure. The scaffolding 100 includes a frame part 140 and a scaffolding board 170. The frame part 140 includes a beam 110, a connecting means 120 that connects a plurality of beams 110 to each other so as to be rotatable relative to the connecting means 120, and a fixing means 130 that fixes the beam 110 so as to be arranged in the X-axis direction or in the Y-axis direction that is parallel to the horizontal direction and perpendicular to the X-axis direction by restricting the rotation of the beam 110 by the connecting means 120. The scaffolding board 170 is supported by the frame part 140. The suspended scaffolding device 10 further includes a suspending means 200 for suspending the scaffolding 100 from the structure, and a protective net 300. The first beam 110A arranged parallel to the X-axis direction among the beams 110 constituting the additional part AP is configured such that, when assembling the additional part AP, one end of the first beam 110A is connected to the first connecting means 120A, which is one connecting means 120 constituting the end of the existing part EP in the X-axis direction, and then the other end of the first beam 110A is rotated within a horizontal plane to be arranged parallel to the X-axis direction, and the protective net 300 is spread between the existing part EP and the first beam 110A as the other end of the first beam 110A rotates within the horizontal plane.

[0039] According to the suspended scaffolding device 10 of this embodiment, the protective net 300 is spread between the existing part EP and the first beam 110A as the other end of the first beam 110A rotates in the horizontal plane, thereby preventing people or objects from falling when assembling the additional part AP.

[0040] In the suspended scaffolding device 10 of this embodiment, the scaffolding 100 further includes a support 150 attached to the connecting means 120 and extending in a direction intersecting the horizontal direction, and the second connecting means 120B is connected to the other end of the first beam 110A, and the protective net 300 is supported by the support 150 attached to the second connecting means 120B and the multiple supports 150 constituting the existing part EP when the other end of the first beam 110A rotates in the horizontal plane. According to the suspended scaffolding device 10 of this embodiment, the protective net 300 is supported by the support 150 attached to the second connecting means 120B and the multiple supports 150 constituting the existing part EP, so that the protective net 300 is spread between the existing part EP and the first beam 110A as the other end of the first beam 110A rotates in the horizontal plane. This makes it possible to more effectively prevent people or objects from falling when assembling the additional part AP.

[0041] In addition, in the suspended scaffolding device 10 of this embodiment, the second beam 110B, which faces the first beam 110A in the Y-axis direction among the beams 110 constituting the additional part AP, is configured so that when assembling the additional part AP, one end is connected to the third connecting means 120C, which is the other connecting means 120 that constitutes the end part of the existing part EP in the X-axis direction, and then the other end is rotated in a horizontal plane to be positioned parallel to the X-axis direction, and the protective net 300 is spread between the existing part EP, the first beam 110A, and the second beam 110B as the other end of the second beam 110B rotates in the horizontal plane. According to the suspended scaffolding device 10 of this embodiment, the protective net 300 is spread between the existing part EP, the first beam 110A, and the second beam 110B as the other end of the second beam 110B rotates in the horizontal plane, thereby more effectively preventing people and objects from falling when assembling the additional part AP.

[0042] In addition, in the suspended scaffolding device 10 of this embodiment, the scaffolding 100 further has a pillar 150 attached to the connecting means 120 and extending in a direction intersecting the horizontal direction, a second connecting means 120B is connected to the other end of the first beam 110A, and a fourth connecting means 120D is connected to the other end of the second beam 110B, and when the other end of the second beam 110B rotates within the horizontal plane, the protective net 300 is supported by the pillar 150 attached to the second connecting means 120B, the pillar 150 attached to the fourth connecting means 120D, and the multiple pillars 150 that constitute the existing section EP. According to the suspended scaffolding device 10 of this embodiment, the protective net 300 is supported by the support 150 attached to the second connecting means 120B, the support 150 attached to the fourth connecting means 120D, and the multiple support columns 150 constituting the existing part EP, so that as the other end of the second beam 110B rotates in the horizontal plane, the protective net 300 is spread between the existing part EP, the first beam 110A, and the second beam 110B. Therefore, it is possible to more effectively prevent people or objects from falling when assembling the additional part AP.

[0043] The method for assembling the suspended scaffolding device 10 of this embodiment is a method for assembling the suspended scaffolding device 10, which includes a scaffolding 100 including an existing part EP and an additional part AP, and which assembles the additional part AP in the X-axis direction parallel to the horizontal direction starting from the existing part EP that has been suspended in advance from a structure. The method for assembling the suspended scaffolding device 10 includes a first step S11, a second step S12, and a third step S13. The first step S11 is a step of preparing the additional part AP in the scaffolding 100, and the scaffolding 100 has a frame part 140, a scaffolding board 170, and a support 150. The frame section 140 has beams 110, connecting means 120 that connects a plurality of beams 110 to each other so as to be rotatable relative to the connecting means 120, and fixing means 130 that fixes the beams 110 so as to be arranged parallel to the X-axis direction or the Y-axis direction that is parallel to the horizontal direction and perpendicular to the X-axis direction by restricting the rotation of the beams 110 by the connecting means 120. The scaffolding board 170 is supported by the frame section 140. The support 150 is attached to the connecting means 120 and extends in a direction intersecting the horizontal direction. The second step S12 is a step of suspending the additional part AP from the structure by the suspending means 200. The third step S13 is a step of providing a first beam 110A that is arranged parallel to the X-axis direction among the beams 110 that constitute the additional part AP, in which one end of the first beam 110A is connected to a first connecting means 120A, which is one connecting means 120 that constitutes the end part in the X-axis direction of the existing part EP, and a second connecting means 120B is connected to the other end of the first beam 110A, and a protective net 300 is attached so as to be supported by a support 150 attached to the second connecting means 120B and the multiple supports 150 that constitute the existing part EP, and the protective net 300 is spread between the existing part EP and the first beam 110A as the other end of the first beam 110A is rotated in a horizontal plane so that the first beam 110A is arranged parallel to the X-axis direction.

[0044] According to the assembly method of the suspended scaffolding device 10 of this embodiment, the protective net 300 is attached so as to be supported by the support 150 attached to the second connecting means 120B and the multiple support columns 150 constituting the existing part EP, and as the other end of the first beam 110A is rotated in a horizontal plane, the protective net 300 can be spread between the existing part EP and the first beam 110A. Therefore, it is possible to prevent people or objects from falling when assembling the additional part AP.

[0045] Furthermore, in the assembly method of the suspended scaffolding device 10 of this embodiment, there is further provided a fourth step S14 of providing a second beam 110B that faces the first beam 110A in the Y-axis direction among the beams 110 that constitute the additional part AP, in which one end of the second beam 110B is connected to a third connecting means 120C, which is the other connecting means 120 that constitutes the end part in the X-axis direction of the existing part EP, and a fourth connecting means 120D is connected to the other end of the second beam 110B, and the protective net 300 is connected to the second The protective net 300 is attached so as to be supported by the support 150 attached to the connecting means 120B, the support 150 attached to the fourth connecting means 120D, and the multiple support pillars 150 that constitute the existing portion EP, and a fourth step S14 is provided in which the protective net 300 is spread between the existing portion EP, the first beam 110A, and the second beam 110B as the other end of the second beam 110B is rotated in the horizontal plane so that the second beam 110B is arranged parallel to the X-axis direction. According to the assembly method of the suspended scaffolding device 10 of this embodiment, the protective net 300 is attached so as to be supported by the support 150 attached to the second connecting means 120B, the support 150 attached to the fourth connecting means 120D, and the multiple support columns 150 constituting the existing part EP, and as the other end of the second beam 110B is rotated in a horizontal plane, the protective net 300 is spread between the existing part EP, the first beam 110A, and the second beam 110B. Therefore, it is possible to more effectively prevent people and objects from falling when assembling the additional part AP.

[0046] B. Variations: The technology disclosed in this specification is not limited to the above-described embodiments, and can be modified in various forms without departing from the spirit of the invention. For example, the following modifications are also possible.

[0047] The configuration of the suspended scaffolding device 10 in the above embodiment is merely an example, and various modifications are possible. For example, in order to support the scaffolding board 170, an additional beam material may be provided inside the portion surrounded by the frame portion 140.

[0048] In the above embodiment, in the third step S13, the protective net 300 is supported by each of the posts 150, but it does not necessarily have to be supported by the posts 150. The same applies to the fourth step S14.

[0049] In the above embodiment, in the third step S13, the protective net 300 is supported by the pillars 150 attached to the first connecting means 120A and the pillars 150 attached to the third connecting means 120C among the multiple pillars 150 constituting the existing portion EP, but the protective net 300 may be supported by other pillars 150 so long as they are pillars 150 constituting the existing portion EP. The same applies to the fourth step S14.

[0050] In the above embodiment, the first beam 110A and the second beam 110B are included in the same basic structural unit in the scaffolding 100, but the present invention is not limited to this. More specifically, in the suspended scaffolding device 10, when a plurality of basic structural units constituting the existing part EP are arranged in the Y-axis direction and a plurality of basic structural units constituting the additional part AP are provided in the Y-axis direction, the first beam 110A and the second beam 110B may be beams included in different basic structural units in the additional part AP. In other words, the protective net 300 may be installed across the lower portions of the plurality of basic structural units constituting the additional part AP. [Explanation of symbols]

[0051] 10: Suspended scaffolding device 100: Scaffolding 110: Beam 110A: First beam 110B: Second beam 110C: Third beam 120: Connection means 120A: First connection means 120B: Second connection means 120C: Third connection means 120D: Fourth connection means 121: Connection node 122: Node pin 124: Chain slot 130: Fixing means 140: Frame section 142: Sub-beam 144: Second beam 146: Assembly scaffolding 150: Support 160: Handrail 170: Scaffolding board 170A: First scaffolding 170B: Second scaffolding 200: Suspension means 300: Protection net AP: Additional section EP: Existing section

Claims

1. A suspended scaffolding device including a scaffolding including an existing portion and an additional portion, the existing portion being suspended in advance from a structure as a starting point, and the additional portion being assembled in a first direction parallel to a horizontal direction, The scaffolding comprises: a frame section having beams, a connecting means for connecting a plurality of the beams together so that they can rotate freely relative to the connecting means, and a fixing means for fixing the beams so that they are arranged in the first direction or in a second direction that is parallel to the horizontal direction and perpendicular to the first direction by restricting the rotation of the beams by the connecting means; A scaffolding board supported by the frame portion, The scaffolding device further includes: A suspension means for suspending the scaffolding from the structure; A protective net and Equipped with A first beam member, which is arranged parallel to the first direction among the beam members constituting the additional portion, is configured such that, when assembling the additional portion, one end is connected to a first connecting means, which is one of the connecting means constituting an end portion of the existing portion in the first direction, and then the other end is rotated within a horizontal plane to be arranged parallel to the first direction; A suspended scaffolding device, wherein the protective net is spread between the existing portion and the first beam as the other end of the first beam rotates within a horizontal plane.

2. The suspended scaffolding device according to claim 1, The scaffolding further includes a support column attached to the connecting means and extending in a direction intersecting the horizontal direction, A second connecting means is connected to the other end of the first beam member, A suspended scaffolding device in which the protective net is supported by the support pillar attached to the second connecting means and a plurality of the support pillars that constitute the existing portion when the other end of the first beam rotates within a horizontal plane.

3. The suspended scaffolding device according to claim 1, The second beam member, which faces the first beam member in the second direction among the beam members constituting the additional portion, is configured such that, when assembling the additional portion, one end is connected to a third connecting means, which is the other connecting means constituting the end portion of the existing portion in the first direction, and then the other end is rotated within a horizontal plane to be arranged parallel to the first direction; A suspended scaffolding device, wherein the protective net is spread between the existing portion, the first beam member, and the second beam member as the other end of the second beam member rotates within a horizontal plane.

4. The suspended scaffolding device according to claim 3, The scaffolding further includes a support column attached to the connecting means and extending in a direction intersecting the horizontal direction, A second connecting means is connected to the other end of the first beam member, A fourth connecting means is connected to the other end of the second beam member, A suspended scaffolding device, in which the protective net is supported by the pillar attached to the second connecting means, the pillar attached to the fourth connecting means, and a plurality of the pillars that constitute the existing portion when the other end of the second beam rotates within a horizontal plane.

5. A method for assembling a suspended scaffolding device, comprising: a scaffolding including an existing portion and an additional portion; and assembling the additional portion in a first direction parallel to a horizontal direction from the existing portion that is suspended in advance from a structure as a starting point, the method comprising: A first step of preparing the existing portion of the scaffolding, The scaffolding comprises: a frame section having beams, a connecting means for connecting a plurality of the beams together so that they can rotate freely relative to the connecting means, and a fixing means for fixing the beams so that they are arranged in the first direction or in a second direction that is parallel to the horizontal direction and perpendicular to the first direction by restricting the rotation of the beams by the connecting means; A scaffolding board supported by the frame portion; A first step having a support attached to the connecting means and extending in a direction intersecting the horizontal direction; A second step of suspending the existing portion from the structure by a suspending means; A third step of providing a first beam member that is arranged parallel to the first direction among the beam members that constitute the additional portion, One end of the first beam is connected to a first connecting means which is one of the connecting means constituting an end portion of the existing portion in the first direction; A second connecting means is connected to the other end of the first beam member; a protective net is attached so as to be supported by the support pole attached to the second connecting means and a plurality of the support poles constituting the existing portion; a third step of rotating the other end of the first beam in a horizontal plane so that the first beam is arranged parallel to the first direction, and spreading the protective net between the existing portion and the first beam; A method for assembling a suspended scaffolding device comprising:

6. The method for assembling a suspended scaffolding device according to claim 5, further comprising: A fourth step of providing a second beam member that faces the first beam member and the second direction among the beam members that constitute the additional portion, One end of the second beam is connected to a third connecting means which is another connecting means constituting an end portion of the existing portion in the first direction; A fourth connecting means is connected to the other end of the second beam member; The protective net is attached so as to be supported by the support pole attached to the second connecting means, the support pole attached to the fourth connecting means, and a plurality of the support poles constituting the existing portion; A method for assembling a suspended scaffolding device comprising a fourth step of spreading the protective net between the existing portion, the first beam, and the second beam while rotating the other end of the second beam in a horizontal plane so that the second beam is positioned parallel to the first direction.

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