Installation structure of suspension scaffold

Abstract

To provide an installation structure of a suspension scaffold which can simply and surely block a gap between scaffold boards of an upper stage and a lower stage at a stepwise scaffold, and can surely prevent a falling object from the gap during work.SOLUTION: An installation structure of a suspension scaffold 1 in which scaffold boards 10 are provided on the upper side and the lower side in a stepped manner has a plurality of assembling jigs 20 for assembling the scaffold boards 10 in the stepped manner, wherein the assembling jig 20 is configured so that a rod-like vertical board support part 21 extending in a vertical direction, a rod-like lower side plate support part 22 extending in a lateral direction from a lower end side of the vertical board support part 21, and a rod-like upper side board support part 23 extending in a lateral direction opposite to the lower side board support part 22 from an upper end side of the vertical board support part 21 are integrated with each other, the scaffold board 10 is bridged over the vertical board support parts 21 of at least the two assembling jigs 20 and is mounted so that side surfaces become plate surfaces 11, a vertical panel 10A between steps is provided, and a gap S between a lower stage scaffold 10B and an upper stage scaffold 10C is blocked by the vertical panel 10A between the steps.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an installation structure for suspended scaffolding, and more particularly to an installation structure for suspended scaffolding that is installed in a stepped manner. [Background technology]

[0002] Conventionally, when inspecting, repairing, renovating, or reinforcing structures such as bridges, a suspended scaffolding is installed under the structure. When installing a suspended scaffolding on an arch-shaped structure, the suspended scaffolding is sometimes installed in a stepped manner to follow the shape of the structure (see, for example, cited reference 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7161381 Summary of the Invention [Problem to be solved by the invention]

[0004] When installing suspended scaffolding in a stepped manner, gaps are created between the lower and upper scaffolding. This can be very dangerous if something or a worker falls through the gap, so in the past, measures were taken to prevent objects from falling through the gap, such as putting up plywood or installing nets.

[0005] However, all of these measures require flexible response on a case-by-case basis, and as a result, there are cases where gaps cannot be sealed properly, making it impossible to prevent objects from falling, which can be problematic.

[0006] The present invention has been made in consideration of such problems, and aims to provide a suspended scaffolding installation structure that can easily and reliably seal the gap between the upper and lower scaffolding boards of a stepped scaffolding, and reliably prevent objects from falling through the gap during work. [Means for solving the problem]

[0007] In order to achieve this object, the present invention provides an installation structure for suspended scaffolding in which scaffolding boards are arranged in a stepped manner on the lower and upper sides, and includes a plurality of assembly jigs for assembling the scaffolding boards in a stepped manner, the assembly jigs being integrally formed with a rod-shaped vertical board support part extending vertically, a rod-shaped lower board support part extending horizontally from the lower end side of the vertical board support part, and a rod-shaped upper board support part extending horizontally from the upper end side of the vertical board support part in the opposite direction to the lower board support part, and the scaffolding boards are attached to the lower board support parts of at least two of the assembly jigs. The installation structure for the suspended scaffolding is characterized in that the lower scaffolding is provided by hanging the scaffolding board across the upper plate support parts of at least two of the assembly jigs and attached so that the upper surface forms a plate surface, the upper scaffolding is provided by hanging the scaffolding board across the upper plate support parts of at least two of the assembly jigs and attached so that the upper surface forms a plate surface, and a step-interval vertical panel is provided by hanging the scaffolding board across the vertical plate support parts of at least two of the assembly jigs and attached so that the side surface forms a plate surface, and the step-interval vertical panel is configured to close the gap between the lower scaffolding and the upper scaffolding.

[0008] Furthermore, in addition to the configuration described above, the present invention is characterized in that the scaffolding board has rod-shaped portions at both ends, and the lower board support portion, the upper board support portion, and the vertical board support portion each have clamp means for gripping the rod-shaped portions.

[0009] In addition to the configuration described above, the present invention is characterized in that the lower board support portion is equipped with a guide portion that guides the board surface of the scaffolding board to be hung so that it is horizontal.

[0010] Furthermore, in addition to the configuration described above, the present invention is characterized in that the upper plate support portion has a hanging member for suspending the assembly jig, and the hanging member is configured to be rotatable and storable, thereby providing an installation structure for a suspended scaffold.

[0011] Furthermore, in addition to the configuration described above, the present invention is characterized in that the scaffolding board has a pivotable lid portion that opens and closes the space near the rod-shaped portions at both ends, and is configured to be opened when the scaffolding board is attached to the assembly jig and closed after attachment, thereby providing an installation structure for a suspended scaffold.

[0012] In addition to the above-described configuration, the present invention is characterized in that the clamping means is configured to be freely attached and detached, providing a suspended scaffolding installation structure. Effect of the Invention

[0013] According to the present invention, in an installation structure for a stepped suspended scaffolding, scaffolding boards and assembly tools are used to install lower and upper scaffolding and vertical step panels that are arranged to close the gap between them, thereby configuring to close the gap between the stepped scaffolding boards.This makes it possible to easily and reliably close the gap between the upper and lower scaffolding boards in a stepped scaffolding and prevents objects from falling through the gap during work.

[0014] In addition, since the lower scaffolding, upper scaffolding, and step-to-step vertical panels can all be installed using the same scaffolding boards, the number of parts at the work site can be reduced, making work easier and improving work efficiency.

[0015] Furthermore, according to the present invention, the mounting jig and the scaffolding board are fixed by clamping means, so that mounting and dismounting can be performed more easily.

[0016] In addition, according to the present invention, the lower board support portion of the assembly jig has a guide member that guides the horizontality of the board surface of the scaffolding board, thereby guiding the scaffolding board during installation and preventing it from rotating, making installation work easier and further improving work efficiency.

[0017] In addition, according to the present invention, the hanging member on the upper plate support portion of the assembly jig is configured to be rotatable and stored, thereby allowing the hanging member to be easily converted between a used state and a unused state, making work easier and improving work efficiency.

[0018] In addition, according to the present invention, the scaffolding board has a pivoting lid portion that opens and closes the space near both ends, and is configured to be opened when the scaffolding board is attached to the assembly jig and closed after attachment, so that the scaffolding board is in a safe state with no gaps when used in construction work after installation, and yet space is secured when the scaffolding board is installed to make installation work easy.

[0019] In addition, according to the present invention, the clamping means for fixing the assembly jig and the scaffolding board is configured to be freely attached and detached, so that in the event of a malfunction in the clamping means or when it is desired to adopt another fixing means, the clamping means can be easily attached, detached and replaced. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a perspective view showing an installation structure of a suspended scaffolding according to an embodiment of the present invention. [Diagram 2] This is an oblique view of the suspended scaffolding installation structure of the same embodiment, viewed from a different angle. [Diagram 3] FIG. 3 is an enlarged view of part A in FIG. 2. [Figure 4] FIG. 2 is a perspective view showing an assembly jig according to the embodiment. [Diagram 5] FIG. 2 is a perspective view showing a clamping means according to the embodiment. [Figure 6] FIG. 11 is a front view showing another example of the clamping means according to the embodiment. [Figure 7] FIG. 11 is a side view showing another example of the clamping means according to the embodiment. [Figure 8] 1 is a perspective view showing an installation procedure for the suspended scaffolding installation structure according to the embodiment. FIG. [Figure 9] 1 is a perspective view showing an installation procedure for the suspended scaffolding installation structure according to the embodiment. FIG. [Figure 10] 1 is a perspective view showing an installation procedure for the suspended scaffolding installation structure according to the embodiment. FIG. [Figure 11] 1 is a perspective view showing an installation procedure for the suspended scaffolding installation structure according to the embodiment. FIG. [Figure 12] 1 is a perspective view showing an installation procedure for the suspended scaffolding installation structure according to the embodiment. FIG. [Figure 13] 1 is a perspective view showing an installation procedure for the suspended scaffolding installation structure according to the embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the present invention will be described.

[0022] 1 to 13 show an embodiment of the present invention.

[0023] The installation structure of the suspended scaffolding 1 in this embodiment is an installation structure of the suspended scaffolding 1 that is installed so as to follow the underside of a non-flat object such as an arch bridge at a construction site, repair work site, inspection work site, etc. (here, bridge repair work is assumed).

[0024] Specifically, the installation structure of the suspended scaffolding 1 in this embodiment is an installation structure of the suspended scaffolding 1 in which scaffolding boards 10 are arranged in a stepped manner on the lower and upper sides as shown in Fig. 1. The same scaffolding boards 10 are used for the upper and lower stages, as well as for the vertical boards arranged between the upper and lower stages. In the following, for convenience, the step-interval vertical panel 10A, the lower stage scaffolding 10B, and the upper stage scaffolding 10C may be distinguished, but the same scaffolding board 10 is used for all components.

[0025] This scaffolding board 10 is installed by being suspended from a bridge girder 2 by a chain 3 or the like, and is configured to have an upper scaffolding 10C, a lower scaffolding 10B, and a step-interval vertical panel 10A installed vertically between them and configured to fill the gap S between the upper scaffolding 10C and the lower scaffolding 10B.

[0026] Each scaffolding board 10 is a system scaffolding having a framework that supports the board surface 11 on the back side of the board surface 11, and has rod-shaped parts 14 at both ends in the longitudinal direction, and the scaffolding board 10 is fixed to each support part 21, 22, 23 of the assembly jig 20 described later via the rod-shaped parts 14. In addition, a rotating lid part 13 is provided on the board surface 11 near the rod-shaped part 14, and the space near the rod-shaped part 14 can be opened or closed by opening and closing the rotating lid part 13. Then, when the rotating lid part 13 is opened to open the space near the rod-shaped part 14, a space for fixing the rod-shaped part 14 to the assembly jig 20 can be secured, making the work easier. Also, when the rotating lid part 13 is closed to close the space near the rod-shaped part 14, the space of the board surface 11 is closed, so that the worker can move and work smoothly after the scaffolding is installed. In this embodiment, the rod-shaped portion 14 is configured in a round pipe shape using a single tube pipe, but this is not limited to this and pipe members of other shapes, such as square pipes, may be used, or members other than pipes may be used.

[0027] In addition, the installation structure of this suspended scaffolding 1 has a plurality of assembly jigs 20, and the upper scaffolding 10C, the lower scaffolding 10B, and the step-to-step vertical panel 10A are configured to be fixed together via these assembly jigs 20.

[0028] The assembly jig 20 will be described in detail. As shown in Fig. 2 to Fig. 5, the assembly jig 20 of this embodiment has a shape in which a rod-shaped vertical plate support portion 21 extending in the vertical direction, a rod-shaped lower plate support portion 22 extending in the horizontal direction from the lower end side of the vertical plate support portion 21, and a rod-shaped upper plate support portion 23 extending in the horizontal direction opposite to the lower plate support portion 22 from the upper end side of the vertical plate support portion 21 are integrally formed.

[0029] Each of the vertical board support part 21, the lower board support part 22, and the upper board support part 23 has a plurality of clamping means 24 (here, two each), and each clamping means 24 is adapted to grip the rod-shaped parts 14 provided at both ends of the scaffolding board 10. Moreover, this clamping means 24 can be freely attached and detached from the vertical board support part 21, the lower board support part 22, and the upper board support part 23 with a single screw, and is configured to be quickly attached and detached when replacing due to a breakdown or when fixing with other means.

[0030] Here, the clamping means 24 used here is one that is rotated by a rotating part 24B and fastened by a screw fastening part 24A as shown in Fig. 5, but is not limited to this, and a clamping means 124 with a different fastening method as shown in Fig. 6 and Fig. 7 may be used. In this case, the clamping means 124 is rotated by the rotating part 124B, and a tapered wedge is driven in by the wedge part 124A to fix the clamp.

[0031] 3, in this embodiment, a plate-shaped guide portion 25 is formed vertically from the lower plate support portion 22, and this guide portion 25 abuts against the lower surface of the abutment portion 12B formed in a substantially U-shape of the lower scaffolding 10B from below, thereby making it possible to identify the position of the lower scaffolding 10B relative to the assembly jig 20, and thereby making it possible to hold the plate surface 11B of the lower scaffolding 10B horizontally. Note that, although this configuration of the guide portion 25 is simple and functional, it is not limited thereto, and it may be guided by other shapes, etc.

[0032] As shown in Fig. 4, the assembly jig 20 of this embodiment is provided with a hanging member 26 through which the chain 3 passes at the upper end of the vertical plate support part 21. This hanging member 26 is rotatable, and when the lower scaffolding 10B is attached, the chain 3 is hung from this hanging member 26 as shown in Fig. 9, and when the upper scaffolding 10C is attached, since this hanging member 26 gets in the way, it is rotated and stored as shown in Fig. 13 before the upper scaffolding 10C is attached.

[0033] Next, a procedure for attaching the scaffolding board 10 using this assembly jig 20 will be described with reference to Figs.

[0034] First, as shown in Figures 8 and 9, the lower scaffolding 10B is attached by spanning it across two assembly jigs 20. At this time, in order to attach the rod-shaped parts 14B provided at both ends of the lower scaffolding 10B to the lower board support parts 22 via clamp means 24, the rotating lid part 13B is opened to release the space, and the rod-shaped parts 14B are attached to the lower board support parts 22 with the clamp means 24, and then the rotating lid part 13B is closed so that no space is generated on the board surface 11B of the scaffolding board 10B.

[0035] 10 and 11, the step-between vertical panel 10A is attached by spanning it across two assembly jigs 20. Here too, in order to attach the rod-shaped portions 14A provided at both ends of the step-between vertical panel 10A to the vertical plate support portions 21 via the clamp means 24, the pivotable lid portion 13A is opened to release the space, and the rod-shaped portions 14A are attached to the vertical plate support portions 21 with the clamp means 24, and then the pivotable lid portion 13A is closed so that no space is generated on the plate surface 11A of the step-between vertical panel 10A.

[0036] 12 and 13, the upper scaffolding 10C is attached by spanning it across two assembly jigs 20. Here too, in order to attach the rod-shaped parts 14C provided at both ends of the upper scaffolding 10C to the upper plate support parts 23 via clamp means 24, the rotating lid part 13C is opened to release the space, and the rod-shaped parts 14C are attached to the upper plate support parts 23 with the clamp means 24, and then the rotating lid part 13C is closed so that no space is generated on the plate surface 11C of the scaffolding board 10C.

[0037] As described above, according to this embodiment, in the installation structure of the stepped suspended scaffolding 1, the scaffolding boards 10 and the assembly jig 20 are used to install the lower scaffolding 10B and the upper scaffolding 10C and the step-space vertical panel 10A arranged to close the gap S between them, thereby closing the gap S between the stepped scaffolding boards 10.This makes it possible to easily and reliably close the gap S between the upper and lower scaffolding boards 10 in the stepped scaffolding, and prevents objects from falling through the gap S during work.

[0038] In addition, since the lower scaffolding 10B, the upper scaffolding 10C, and the step-to-step vertical panel 10A can all be installed using the same scaffolding board 10, the number of parts at the work site can be reduced, making work easier and improving work efficiency.

[0039] Furthermore, according to this embodiment, the mounting jig 20 and the scaffolding board 10 are fixed together by the clamping means 24, so that mounting and dismounting can be performed more easily.

[0040] Furthermore, according to this embodiment, the lower board support portion 22 of the assembly jig 20 has a guide portion 25 that guides the horizontality of the board surface 11 of the scaffolding board 10. This guides the scaffolding board 10 during installation and prevents the scaffolding board 10 from rotating, making installation work easier and further improving work efficiency.

[0041] Furthermore, according to this embodiment, the hanging member 26 on the upper plate support portion 23 of the assembly jig 20 is configured to be rotatable and storable, so that the hanging member 26 can be easily converted between a used state and an unused state, making work easier and improving work efficiency.

[0042] In addition, according to this embodiment, the scaffolding board 10 has a pivoting lid portion 13 that opens and closes the space near both ends, and is configured to be opened when the scaffolding board 10 is attached to the assembly jig 20 and closed after attachment, so that the scaffolding board 10 is in a safe state with no gaps when used in construction work after installation, and yet when the scaffolding board 10 is installed, space is secured to make it easy to carry out installation work.

[0043] Furthermore, according to this embodiment, the clamping means 24 that secures the assembly jig 20 and the scaffolding board 10 is configured to be freely attached and detached, and therefore can be easily attached, detached, replaced, etc., in the event of a malfunction of the clamping means 24 or when another fixing means is to be adopted.

[0044] The present invention is not limited to the above-described embodiments, but can be applied to other configurations and other usage situations.

[0045] For example, in the above-described embodiment, the scaffolding board and the assembly jig are fixed together using a clamping means, but this is not limited to this and other fastening fittings or the like may be used for fixing.

[0046] The member for hooking the suspension chain may be a lanyard, a safety block, or any other suitable means. [Explanation of symbols]

[0047] 1 Suspended scaffolding 2 Bridge girders 3. Chain 10 Scaffolding Planks 10A Vertical panel between steps 10B Lower scaffolding 10C Upper scaffolding 11,11A,11B,11C plate surface 12B Contact part 13,13A,13B,13C Rotating lid part 14,14A,14B,14C Rod-shaped part 20 Assembly jig 21 Vertical plate support 22 Lower plate support part 23 Upper plate support part 24 Clamping means 24A Screw tightening part 24B Rotating part 25 Guide section 26 Suspension members 124 Clamping means 124A Wedge 124B Rotating part S Gap

Claims

1. A suspended scaffolding installation structure in which scaffolding boards are arranged in a stepped manner on the lower and upper sides, The scaffolding board has a plurality of assembly jigs for assembling the scaffolding boards in a stepped shape, the assembly jig is integrally formed with a rod-shaped vertical plate support portion extending in a vertical direction, a rod-shaped lower plate support portion extending in a horizontal direction from a lower end side of the vertical plate support portion, and a rod-shaped upper plate support portion extending in a horizontal direction opposite to the lower plate support portion from an upper end side of the vertical plate support portion, The scaffolding board is hung across the lower plate support parts of at least two of the assembly jigs so that the upper surface becomes a plate surface, thereby providing a lower scaffolding, The scaffolding board is hung across the upper plate support parts of at least two of the assembly jigs so that the upper surface becomes a plate surface, and an upper scaffolding is provided; The scaffolding board is hung across the vertical board support parts of at least two of the assembly jigs so that the side surfaces become board surfaces, thereby providing a step-interval vertical panel; A suspended scaffolding installation structure characterized in that the step-distance vertical panel is configured to close the gap between the lower scaffolding and the upper scaffolding.

2. The scaffolding board has rod-shaped portions at both ends, The suspended scaffolding installation structure according to claim 1, characterized in that the lower plate support portion, the upper plate support portion and the vertical plate support portion each have a clamp means for gripping the rod-shaped portion.

3. The suspended scaffolding installation structure according to claim 1, characterized in that the lower board support portion is provided with a guide portion that guides the board surface of the scaffolding board to be hung horizontally.

4. The upper plate support portion has a hanging member for hanging the assembly jig, The suspended scaffolding installation structure according to claim 1, characterized in that the suspension member is configured to be rotatable and storable.

5. The scaffolding board has a rotating lid portion that opens and closes the space near the rod-shaped portion at both ends, The suspended scaffolding installation structure according to claim 2, characterized in that the scaffolding board is opened when it is attached to the assembly jig and closed after attachment.

6. 3. The suspended scaffolding installation structure according to claim 2, wherein the clamping means is configured to be freely attached and detached.

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