Side wall panels for suspended scaffolding

Abstract

To provide a side wall panel for closing a side space of a scaffold board in a suspended scaffold.SOLUTION: Side wall panels are arranged in a row in an erected state along an edge part of a scaffold board in a suspended scaffold, and adjacent side wall panels are provided with joint devices to be connected to each other; in the side wall panel (20), a panel plate (24) is disposed between a first girder side frame (21A) and a second girder side frame (21B) which are spaced apart and arranged in parallel, and a first gable side frame (23A) and a second gable side frame (23B) are erected at predetermined positions in the vicinity of both ends of the first girder side frame and the second girder side frame; in the first gable side frame and the second gable side frame, a holding frame (25) for holding a gable side edge part (24b) of the panel plate and a connecting frame (26) constituting the joint device (J) are connected in a juxtaposed state.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a side wall panel for closing a lateral space of a scaffolding board suspended in a suspended scaffolding. [Background technology]

[0002] Conventionally, when constructing or renovating an existing structure such as a highway or a bridge at a high altitude, a suspended scaffold extending along the existing structure is constructed.

[0003] A suspended scaffolding board for constructing a suspended scaffolding (hereinafter simply referred to as "scaffolding board 1") is generally configured as shown in Figs. 1 to 3.

[0004] The scaffolding board 1 is configured to support the floor material 2 by a first girder side frame 3A and a second girder side frame 3B (sometimes simply referred to as "girder side frames 3" when there is no distinction between the two) made of square pipe materials arranged parallel to each other at a distance, and a first girder side frame 4A and a second girder side frame 4B (sometimes simply referred to as "girder side frames 4" when there is no distinction between the two) made of circular pipe materials are erected on both ends of the pair of girder side frames 3A, 3B. Furthermore, both ends of a center frame 5 made of circular pipe materials arranged under the floor material 2 are connected to the gable side frames 4.

[0005] However, as typified by expressways, the extension direction of existing structures is not necessarily limited to a straight line, but may also include curved lines. Therefore, the suspended scaffolding must also be constructed in a direction that corresponds to this.

[0006] For this reason, the end side edges of adjacent scaffolding boards 1 are connected to each other by a joint device so that the distance between them can be adjusted. The end side frame 4 is configured so that both ends do not protrude from the outer surfaces of the first girder side frame 3A and the second girder side frame 3B, and of both ends, a first end 6a is opened on the outer surface of the first girder side frame 3A to form a socket 7, and an insert member protruding from the second end 6b is protruded outward beyond the outer surface of the second girder side frame 3B to form a plug 8, and a joint device is configured to connect the end side frames 4, 4 of adjacent scaffolding boards 1, 1 by slidably inserting the plug 8 into the socket 7.

[0007] At this time, the socket 7 and plug 8, which are fitted together, are held in place by inserting the connecting pin 9 in a penetrating state, but the insertion hole of the plug 8 into which the connecting pin 9 is inserted is formed by a long hole 10, and is configured to allow the plug 8 and socket 7 to slide within the range of the long hole 10, thereby making it possible to adjust the distance between adjacent scaffolding boards 1, 1.

[0008] When constructing a suspended scaffold, the scaffold boards 1 are lined up along an existing structure by alternately connecting the sockets 7 and plugs 8, and are suspended from the underside of the existing structure by ropes 11 such as chains. To enable such suspension by ropes 11 such as chains, the floor material 2 has window holes 12 facing the center frame 5 at predetermined intervals, and the frame 5 is provided with suspension fittings 13 facing each window hole 12. Therefore, by connecting the ropes 11 to the suspension fittings 13, the frame 5 is suspended via the fittings 13. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent No. 6366472 [Patent Document 2] Patent No. 6426917 [Patent Document 3] Patent No. 6663726 Summary of the Invention [Problem to be solved by the invention]

[0010] Suspended scaffolding provides a floor surface for construction or renovation work, but because the side space is open, noise during construction is released to the outside, causing a nuisance to neighbors. In addition, there is a problem that workers may fall from the open side space, and tools and other objects may fall to the ground.

[0011] For this reason, it is preferable to arrange the side wall panels 20 in an upright position along the edge of the scaffolding board 1, as shown by the chain lines in FIG. 3, thereby blocking the side space.

[0012] In this case, however, it is desirable that the side wall panel 20 be as light as possible, have excellent productivity, and be easy to repair, etc., and this poses a problem.

[0013] Furthermore, since it is necessary to connect adjacent side wall panels when they are arranged in a row, it is desirable to provide a joint device that is easy to connect, and this poses a problem. [Means for solving the problem]

[0014] The present invention provides a sidewall panel for a suspended scaffolding that solves the above-mentioned problems, and is configured as a means for achieving this. In a suspended scaffolding in which a floor surface is formed by sequentially lining up a number of scaffolding plates suspended by cables from an existing structure in a predetermined extension direction, and scaffolding is constructed on the floor surface, the sidewall panels are lined up in an upright state along the edges of the scaffolding plates, and adjacent sidewall panels are provided with a joint device that connects them to each other, and the sidewall panel has a panel plate disposed between a first girder side frame and a second girder side frame that are arranged in parallel with a space between them, and a first end side frame and a second end side frame are erected at predetermined positions near both ends of the first girder side frame and the second girder side frame, and the first end side frame and the second end side frame have a holding frame that holds the end side edge of the panel plate and a connecting frame that constitutes the joint device that are arranged in parallel,In addition, the holding frame and the connecting frame are integrated by connecting both ends of the holding frame and the connecting frame with brackets, and the brackets are detachably fixed to the first girder side frame and the second girder side frame. It's at the point.

[0015] In a preferred embodiment of the present invention, the first girder side frame and the second girder side frame have mating grooves formed in their opposing wall surfaces extending over the entire length of the frames, and the first end side frame and the second end side frame are integrated by connecting both ends of the holding frame and the connecting frame with a bracket, and the bracket is provided with a fixing portion that is slidably fitted into the mating groove, and a detachable fixing means is provided for detachably fixing the bracket to the first girder side frame and the second girder side frame with the first end side frame and the second end side frame positioned at the specified position by fitting the fixing portion of the bracket into the mating groove.

[0016] Preferably, the first girder side frame and the second girder side frame are provided with a retaining groove for holding the girder side edge of the panel plate, and the retaining frames in the first end side frame and the second end side frame are provided with a retaining groove for holding the end side edge of the panel plate.

[0017] It is preferable that at least one of the retaining grooves that holds the girder side edge of the panel plate and the retaining groove that holds the gable side edge of the panel plate holds the edge of the panel plate in a tight contact state using caulking material over at least a portion of the entire length of the retaining groove. Effect of the Invention

[0018] According to the present invention, it is possible to provide a side wall panel for closing the lateral space of a scaffolding board suspended in a suspended scaffolding, which is lightweight, easy to handle, and highly productive. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view showing a scaffolding board in a conventional suspended scaffolding. [Diagram 2] FIG. 1 is a perspective view showing a conventional method of connecting scaffolding boards. [Diagram 3]FIG. 1 is a perspective view showing a suspended scaffold constructed by connecting conventional scaffolding boards. [Figure 4] FIG. 2 is a perspective view of a side wall panel according to one embodiment of the present invention. [Diagram 5] Regarding the framework of the side wall panel, (A) is an oblique view showing the girder side frame and the center rail frame in an exploded state, and (B) and (C) are oblique views of the mounting hardware. [Figure 6] Regarding the components of the framework, (A) is a cross-sectional view of the mold material that constitutes the girder side frame, (B) is a cross-sectional view of the mold material that constitutes the middle rail frame and the joint frame, and (C) is a cross-sectional view of the mold material that constitutes the support frame in the gable side frame. [Figure 7] This is an oblique view showing the reinforcing bar frame and joint frame that make up the central bar frame in an exploded state. [Figure 8] Regarding the center rail frame, (A) is an oblique view showing the state in which the center rail frame is assembled to the girder side frame, and (B) is an enlarged oblique view showing the assembled portion. [Figure 9] This is an oblique view showing a method of assembling the gable side frame after fitting a panel plate to the girder side frame to which the middle rail frame is assembled. [Figure 10] Regarding the end-side frame, (A) is an oblique view showing the outside of the end-side frame in which the support frame and connecting frame are arranged side by side and integrated, (B) is an oblique view of the second bracket, and (C) is an oblique view of the first bracket. [Figure 11] Regarding the end-side frame, (A) is an oblique view showing the inside of the end-side frame in which the holding frame and connecting frame are arranged side by side and integrated, (B) is an oblique view of the first bracket, and (C) is an oblique view of the second bracket. [Figure 12] This is an oblique view showing the state in which the gable side frame is installed on the end of the girder side frame. [Figure 13] FIG. 13 is a perspective view showing how adjacent side wall panels are interconnected with respect to a joint device. [Figure 14] Regarding the operation of the coupling device, (A) is a cross-sectional view showing a state in which a plug is placed on the temporary placement means, and (B) is a perspective view showing a state in which the plug is inserted into a socket. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0021] As described above based on Figures 1 to 3, the suspended scaffolding is constructed by arranging plate-shaped scaffolding boards in a row, and adjacent scaffolding boards are connected to each other with joint devices to provide a floor surface. In this case, it is preferable that the side space of the floor surface is blocked by the side wall panel 20. The side wall panel 20 is arranged in an upright state in a row along the edge of the gable side of the scaffolding board 1, and it is preferable that, like the scaffolding board, adjacent side wall panels are connected to each other with joint devices to provide a continuous wall surface.

[0022] (Side wall panel) 4 to 14 show one embodiment of a side wall panel 20 according to the present invention. As shown in Fig. 3, the side wall panels 20 are arranged in an upright state along the edge of the gable side of the scaffolding board 1 of the suspended scaffolding that provides a continuous floor surface, and adjacent side wall panels 20, 20 are connected to each other by a joint device J to provide a continuous wall surface.

[0023] As shown in Fig. 4, the side wall panel 20 is made up of a first girder side frame 21A and a second girder side frame 21B (sometimes simply referred to as "girder side frames 21" when there is no need to distinguish between them) arranged in parallel and spaced apart from each other, a middle crosspiece frame 22 erected in the middle of the longitudinal direction of both girder side frames 21A and 21B, and a first end side frame 23A and a second end side frame 23B (sometimes simply referred to as "end side frames 23" when there is no need to distinguish between them) erected near both ends of both girder side frames 21A and 21B, forming a rectangular framework, and a panel plate 24 is fitted into the frame between the girder side frames 21A and 21B. The panel plate 24 has a girder side edge 24a facing the girder side frame 21 and an end side edge 24b facing the end side frame 23, and the girder side edge 24a is held by the girder side frames 21A and 21B.

[0024] The end side frame 23 consists of a holding frame 25 that holds the end side edge 24b of the panel plate 24, and a connecting frame 26 that constitutes the joint device J, and by connecting both frames 25, 26 in a side-by-side position, they form an integrated assembled unit.

[0025] The panel plate 24 may be configured so that one panel plate 24 is fitted into one window-like opening surrounded by a pair of girder side frames 21 and a pair of retaining frames 25, but in the illustrated embodiment, two window-like openings are formed divided by the middle rail frame 22, and a first panel plate 24A and a second panel plate 24B are fitted into each window-like opening.

[0026] The middle rail frame 22 is composed of a reinforcing rail frame 27 that connects the middle parts of the first girder side frame 21A and the second girder side frame 21B, and a joint frame 28 that is affixed along the reinforcing rail frame 27, and is assembled and integrated into a unit by fixing both frames 27, 28 in an overlapping state. The joint frame 28 holds the inner edge parts 24c, 24c of the first panel plate 24A and the second panel plate 24B that are adjacent to and facing each other. The reinforcing rail frame 27 is preferably formed from a metal pipe material, and although a pipe material with a rectangular cross section is shown in the illustrated embodiment, a pipe material with a circular cross section may also be used.

[0027] The girder side frame 21 and the center crosspiece frame 22 are assembled with mounting brackets 29. The support frame 25 and the connecting frame 26 that constitute the end side frame 23 are connected at both ends with brackets 30, thereby forming an integrated unit that is installed side by side, and is erected near both ends of the girder side frame 21 by fixing the brackets 30 to the girder side frame 21.

[0028] (form material) The girder side frame 21, the joint frame 28 of the middle crosspiece frame 22, and the support frame 25 of the gable side frame 23 are each formed from extruded molding material such as aluminum, and form a hollow, elongated body.

[0029] (Girder side frame) As shown in Fig. 6(A), the girder side frame 21 has a fitting groove 32 and a retaining groove 33 arranged side by side on the inner wall surface (the opposing wall surfaces of the first girder side frame 21A and the second girder side frame 21B). As will be described later, the fitting groove 32 is provided for fitting and fixing the mounting fittings 29 of the middle rail frame 22 and the brackets 30 of the end side frame 23. The retaining groove 33 is provided for fitting and holding the girder side edge portion 24a of the panel plate 24.

[0030] In the illustrated embodiment, the fitting groove 32 is formed by recessing the inner wall of the mold material, and the retaining groove 33 is formed between a pair of ribs 33a, 33b protruding from the inner wall of the mold material.

[0031] Furthermore, the profile of the girder side frame 21 has an outer wall recessed as shown in the figure to form a storage groove 34 for accommodating the head of the bolt that removably fixes the mounting fitting 29 and bracket 30.

[0032] (Middle frame) 6(B), the joint frame 28 of the middle rail frame 22 has holding grooves 36, 36 formed on both sides of a flat hollow cylinder 35 having upper and lower walls, into which the inner edge portions 24c, 24c of the first panel plate 24A and the second panel plate 24B are fitted and held. The holding groove 36 is formed between a pair of ribs 36a, 36b protruding from both side walls of the mold material.

[0033] As shown in Figure 7, the joint frame 28 is overlapped on the underside of the reinforcing bar frame 27, and the upper wall is fixed to the reinforcing bar frame 27 by driving rivets 37 through window holes 35a formed in the lower wall of the hollow cylindrical portion 35.

[0034] As described later, when the side wall panels 20 are arranged in a row along the edge of the gable side of the scaffolding board of the suspended scaffolding and are in an upright position, the middle rail frame 22 has a support function of fixing the middle rail frame 22 to a structure constructed on the scaffolding board to maintain the upright position of the side wall panels 20. For this purpose, the reinforcing rail frame 27 is provided with female screw means 39 for freely attaching a mounting bolt 38a of a clamp fitting or other connecting fitting 38 commonly used in temporary scaffolding. In the illustrated embodiment, the female screw means 39 is formed by providing a female screw on the inner periphery of a metal cylinder 39a inserted and fixed to the reinforcing rail frame 27.

[0035] (holding frame) 6(C), the holding frame 25 of the end-side frame 23 has a holding groove 40 formed in its inner wall (the wall facing the panel plate 24), and the end-side edge 24b of the panel plate 24 is held in a fitted state by the holding groove 40. The holding groove 40 is formed between a pair of ribs 40a, 40b protruding from the wall portion of the mold material.

[0036] A support groove 41 for fitting and supporting the bracket 30 is formed in the outer wall of the holding frame 25 (the wall facing the connecting frame 26), and the support groove 41 is formed between a pair of ribs 41a, 41b.

[0037] (Installation of the central frame) As shown in FIG. 8, the first girder side frame 21A and the second girder side frame 21B are connected in a parallel arrangement with a predetermined gap therebetween by erecting a center rail frame 22 in the middle.

[0038] Before being erected on the girder side frame 21, the mounting fittings 29 are arranged on both ends of the middle rail frame 22. As shown in Fig. 5, the mounting fittings 29 are formed by bending a pair of protruding plate portions 29b, 29b on a fixed plate portion 29a that is freely insertable into the fitting groove 32 of the girder side frame 21, and a notched insertion space 29c is formed between the protruding plate portions 29b, 29b. Then, the end of the reinforcing rail frame 27 is inserted into the insertion space 29c, and the protruding plate portions 29b, 29b are placed on the upper rib 36a of the joint frame 28, whereby the mounting fittings 29 are temporarily fixed to both ends of the middle rail frame 22.

[0039] Therefore, the fixing plate portion 29a of the mounting bracket 29 is slid to a predetermined position while being fitted into the fitting groove 32 of the girder side frame 21. At this time, the depth of the fitting groove 32 is formed so that not only the fixing plate portion 29a but also the edge of the reinforcing rail frame 27 can be fitted into the fitting groove 32 (see FIG. 8(B)).

[0040] The fixing plate portion 29a is provided with a nut means 42. In the illustrated embodiment, the nut means 42 is formed by press-molding a cylindrical portion on the fixing plate portion 29a and tapping a female screw, but it may also be formed by fastening a separate nut by caulking or the like.

[0041] The first girder side frame 21A and the second girder side frame 21B are formed with bolt insertion holes 43 at predetermined positions in advance. Therefore, when the bolts 44 are inserted into the bolt insertion holes 43 and fastened to the nut means 42 at a predetermined position after sliding along the fitting grooves 32, both ends of the reinforcing bar frame 27 are fixed together with the mounting fittings 29 as shown in Fig. 8. In this state, the middle bar frame 22 is fixed to the mounting fittings 29 fixed to the girder side frame 21 by the bolts 44 and nuts 42 with the ends of the reinforcing bar frame 27 fitted into the fitting grooves 32 and the ribs 36a of the joint frame 28 pressed by the protruding plate portions 29b. In this manner, the middle bar frame 22 is erected at a predetermined position on the girder side frame 21.

[0042] (Panel insertion) This forms an H-shaped frame structure consisting of the first girder side frame 21A, the second girder side frame 21B, and the middle crosspiece frame 22. Then, the panel plate 24 is fitted between the first girder side frame 21A and the second girder side frame 21B. The pair of panel plates 24A, 24B are inserted and slid from both ends of the first girder side frame 21A and the second girder side frame 21B toward the retaining grooves 33 by inserting the girder side edge portions 24a of the panel plate, and the inner edge portions 24c are fitted and retained in the retaining grooves 36 of the joint frame 28 in the middle crosspiece frame 22.

[0043] (Gable side frame) After fitting the panel plate 24 to the H-shaped frame structure as described above, the first end-side frame 23A and the second end-side frame 23B are erected on both ends of the first girder-side frame 21A and the second girder-side frame 21B. The end-side frame 23 connects the holding frame 25 and the connecting frame 26 in a juxtaposed state by brackets 30 provided at both ends, forming an integrated assembled unit.

[0044] The connecting frame 26 is formed of a pipe material made of a circular tube, and is configured so that both ends do not protrude from the outer surfaces of the first girder side frame 21A and the second girder side frame 21B, and of both ends, the first end 26a is opened near the outer surface of the first girder side frame 21A to form a socket 45, and the insert member 58 protruding from the second end 26b is protruding outward from the outer surface of the second girder side frame 21B to form a plug 46, and a joint device J is configured to connect the end side frames 23 of adjacent side wall panels 20, 20 by inserting the plug 46 slidably into the socket 45. At this time, the socket 45 and the plug 46, which are inserted into each other, are held in place by inserting the connecting pin 47 in a penetrating state, and the insertion hole of the plug 46 into which the connecting pin 47 is inserted is made an elongated hole 46a to allow the plug 46 and the socket 45 to slide.

[0045] As shown in Figures 9 to 11, a first bracket 30A is provided at a first end 26a of the connecting frame 26, and a second bracket 30B (sometimes simply referred to as "bracket 30" when there is no need to distinguish between the two) is provided at a second end 26b.

[0046] As shown in FIGS. 10 and 11, the first bracket 30A and the second bracket 30B are each formed by integrating a support bracket 48 and a connecting bracket 49 by fastening them together by welding or the like.

[0047] The support bracket 48 is formed by bending a metal plate into an L shape to form a support plate portion 48a and a back plate portion 48b. The support plate portion 48a embraces the ends 26a, 26b of the connecting frame 26 and is fixed thereto by welding or the like. The connecting bracket 49 is fixed to the back plate portion 48b by welding or the like so as to cross the back plate portion 48b, thereby positioning the connecting bracket 49 parallel to the girder side frame 21.

[0048] The connecting bracket 49 is formed by bending a metal plate, and includes a fixing portion 49a extending in an arm-like shape from the back plate portion 48b to be slidably fitted into the fitting groove 32 of the girder side frame 21, a connecting seat portion 49b formed by bending the tip of the fixing portion 49a to be fitted into the support groove 41 of the holding frame 25, and a reinforcing portion 49c that is folded and integrated across the fixing portion 49a and connecting seat portion 49b and is fixed to the back plate portion 48b by welding or the like.

[0049] The fixing portion 49a and the connecting seat portion 49b are provided with nut means 50a, 50b, respectively. In the illustrated embodiment, the nut means 50a, 50b are formed by press-molding a cylindrical portion on the fixing portion 49a and the connecting seat portion 49b, which are made of a metal plate, and tapping a female thread, but may be formed by fixing a separate nut by caulking or the like.

[0050] Then, the support groove 41 of the holding frame 25 is fitted into the connecting seat portion 49b of the connecting bracket 49 in the bracket 30, and the bolt 52 is inserted into the bolt insertion hole 51 (see Figure 9) previously formed at a predetermined position of the holding frame 25, and fastened to the nut means 50b of the connecting seat portion 49b.

[0051] In this manner, the end frame 23 constituting a unit consisting of the support frame 25 and the connecting frame 26 which are juxtaposed and integrated by the bracket 30 is provided.

[0052] In the illustrated embodiment, the support bracket 48 and the connecting bracket 49 are each formed by bending a metal plate and integrated by joining them by welding or the like, but the support bracket 48 and the connecting bracket 49 may also be integrally formed from a single metal plate.

[0053] (Installation of the frame on the side of the house) The gable side frame 23, which constitutes a unit of the holding frame 25 and the connecting frame 26, is fixed in a predetermined position by fitting the fixing portion 49a of the bracket 30 into the fitting groove 32 with the fixing portion 49a facing the end of the girder side frame 21, and sliding the fitted fixing portion 49a along the fitting groove 32.

[0054] By sliding the bracket 30 along the fitting groove 32 to a predetermined position, the holding frame 25 moves toward the end edge 24b of the panel board 24, and holds the end edge 24b in a fitted state in the holding groove 40.

[0055] The first girder side frame 21A and the second girder side frame 21B have bolt insertion holes 53 (see Figure 9) formed in advance, and when the bracket 30 is placed in a predetermined position, the nut means 50a of the fixing portion 49a is aligned with the bolt insertion hole 53, and then the bolt 54 is inserted into the bolt insertion hole 53 and fastened to the nut means 50a.

[0056] In this way, the gable side frame 23 can be set at a predetermined position on the girder side frame 21 by sliding the fixing portion 49a of the bracket 30 along the fitting groove 32, and by tightening the bolt 54, both the holding frame 25 and the connecting frame 26 can be fixed in the predetermined positions simultaneously, making installation very easy.

[0057] (Side wall panel) In the side wall panel 20 configured as described above, the girder side edges 24a, 24a of the panel plate 24 are held in an fitted state in the retaining grooves 33 of the first girder side frame 21A and the second girder side frame 21B, the gable side edge 24b is held in an fitted state in the retaining groove 40 of the retaining frame 25 in the gable side frame 23, and the inner edge 24c is held in an fitted state in the retaining groove 33 of the joint frame 28.

[0058] Therefore, the panel plates 24 (in the illustrated embodiment, each of the first panel plate 24A and the second panel plate 24B) are securely supported at all four sides, and therefore there is no risk of them flapping about inside the framework.

[0059] However, the panel plate 24 of the lightweight side wall panel 20 may generate rattling noises due to micro-vibrations caused by vibrations of the structure at the site, wind, rain, etc. For this reason, although not shown, it is preferable to fill the retaining grooves that hold the edges of the panel plate 24 with a caulking material to tightly hold the edges.

[0060] The caulking material may be provided around the entire periphery of the panel plate 24, but even providing it partially is effective in preventing the occurrence of micro-vibrations. Therefore, it is sufficient to provide the caulking material in at least one of the retaining grooves 33 of the girder side frame 21, the retaining groove 40 of the retaining frame 25, and the retaining groove 33 of the joint frame 28, and moreover, it is sufficient to provide the caulking material on at least a portion of the entire length of the retaining groove.

[0061] The framework structure of the side wall panel 20 is made of aluminum or other extruded moldings for the girder side frame 21 and the support frame 25 (including the joint frame 28 in the illustrated embodiment), making it lightweight overall and easy to handle. Since the side wall panel 20 is lightweight overall, the connecting frame 26 of the gable side frame 23 may also be made of aluminum pipe material, making it possible to further reduce the weight.

[0062] Furthermore, the panel plate 24 can be formed from a thin plate made of light metal such as aluminum, a lightweight board, a mesh-like net plate, or the like, as necessary.

[0063] In addition, by using extruded aluminum or other materials for the frames 21, 25, and 28 that constitute the retaining frame of the panel plate 24, the girder-side frame 21 is formed with a fitting groove 32 and a retaining groove 33, and the retaining frame 25 of the end-side frame is formed with a support groove 41 and a retaining groove 40, so that the side wall panel 20 can be assembled well. That is, the fitting groove 32 of the girder-side frame 21 allows the fixing portion 49a of the bracket 30 of the end-side frame 23 to be fitted and slid to a predetermined position. The support groove 41 of the retaining frame 25 facilitates the positioning of the retaining frame 25 fixed to the connecting seat portion 49b of the bracket 30. As a result, the framing work for the side wall panel 20 is simple and easy, and the panel plate 24 can be fitted and retained in the retaining grooves 33, 36, and 40 at the same time as the framing, so that the productivity is very good.

[0064] Incidentally, it is assumed that the side wall panel 20 may require removal of the panel plate 24 due to, for example, damage to the panel plate 24. In this regard, as described above, the gable-side frame 23 is configured such that the holding frame 25 and the connecting frame 26 are integrated as a unit and the fixing portions 49a of the brackets 30 are detachably fixed to the girder-side frame 21 by the bolts 54. Therefore, the holding frame 25 and the connecting frame 26 can be simultaneously removed simply by removing the bolts 54 and removing the fixing portions 49a of the brackets 30 from the fitting grooves 32. This also makes it extremely easy to work with.

[0065] As described above, the side wall panels 20 are arranged in an upright state along the edge of the gable side of the scaffolding board 1 of the suspended scaffolding as shown in Fig. 3, and as described later, adjacent side wall panels 20, 20 are connected to each other by joint devices J provided on the connecting frames 26 of the gable side frames 23, similar to the scaffolding boards. Although not shown, the gable side frames 4 of the scaffolding boards 1 arranged side by side and the connecting frames 26 of the gable side frames 23 of the side wall panels 20 can be connected to each other by commonly used clamp fittings or the like, and by standing the side wall panels 20 after connection, a continuous and safe wall surface is provided along the side of the suspended scaffolding.

[0066] The erected side wall panel 20 is maintained in an erect position by connecting and fixing the middle rail frame 22 to a structure erected on the scaffolding board. As described above, if the female screw means 39 provided on the middle rail frame 22 is configured to be fitted with a connecting metal fitting 38 such as a clamp metal fitting, the side wall panel 20 can be suitably maintained in an erect position by fastening the metal fitting 38 to various pipe materials constituting the structure.

[0067] (Coupling device) An embodiment of the joint device J will be described with reference to FIGS.

[0068] As shown in Figure 10, of the two ends of the connecting frame 26 that constitutes the gable side frame 23, the first end 26a is open and positioned inward from the outer surface of the first girder side frame 21A, as indicated by the distance L, and the open end forms a socket 45, and the support plate portion 48a of the support bracket 48 in the first bracket 30A is fixed to the lower peripheral surface of the socket 45 as shown by welding or the like.

[0069] In the illustrated embodiment, the connecting pin 47 is connected to a reinforcing portion 49c of the connecting bracket 49 in the first bracket 30A via a flexible connecting means 47a such as a chain.

[0070] The socket 45 has insertion and engagement holes 55a, 55b formed therethrough in the vertical direction for inserting the connecting pin 47 when connecting the plug 46, and a communication hole 55c communicating with the lower insertion and engagement hole 55b is formed through the support plate portion 48a.

[0071] Furthermore, in the portion of the connecting frame 26 adjacent to the first bracket 30A, keep holes 56a, 56b are formed extending therethrough in a direction intersecting the axial direction of the insertion and engagement holes 55a, 55b, so that the connecting pin 47 can be inserted to hold the side wall panel 20 in place when not in use (during storage or transportation).

[0072] A temporary placement means 57 is provided in the space corresponding to the distance L, that is, between the open end of the socket 45 and the position flush with the outer surface of the first girder side frame 21A. In the illustrated embodiment, the temporary placement means 57 is formed by integrally extending the support plate portion 48a of the first bracket 30A, but the temporary placement means 57 may also be formed by fastening a separate metal plate or the like.

[0073] Of both ends of the connecting frame 26 in the end-side frame 23, the second end 26b has a support plate portion 48a of the second bracket 30B fixed to its peripheral surface on the lower side as shown by welding or the like, and is provided with a plug 46 protruding in the axial direction from the second end 26b. The plug 46 is formed by an insertion member 58 inserted into the second end 26b, and in the illustrated embodiment, the insertion member 58 is formed by fitting a lower member 58a and an upper member 58b, each having a semi-split cylindrical cross section, together from above and below in a palm-to-palm state and fixing them together, and the long hole 46a penetrates vertically to form the long hole 46a.

[0074] In this case, it is preferable to form guide means 59 having a small outer diameter at the tip end of plug 46. In the illustrated embodiment, a tongue piece 59a protruding from the tip edge of lower member 58a is bent and inclined toward the axial direction of plug 46, thereby forming guide means 59.

[0075] As shown in Figures 13 and 14(A), in order to arrange multiple side wall panels 20 in a row, adjacent side wall panels 20A and 20B are aligned in parallel, and when plugs 46 are inserted into the sockets 45, the tips of the plugs 46 can be placed on temporary placement means 57 attached to the sockets 45.

[0076] This makes it possible to leave the side wall panel 20B to be installed behind the previously installed side wall panel 20A, making the work easier.

[0077] In this regard, the current situation is that the connection work using the coupling device J is difficult because it is necessary to simultaneously insert the plug 46 into the socket 45 while aligning the axial center of the plug 46 with the axial center of the socket 45 for both the connection frames 26 of the first end side frame 23A and the second end side frame 23B. In this regard, in the illustrated embodiment, the temporary placement means 57 is provided, so that it is possible to adjust the posture of the side wall panel 20 so that the plug 46 is aligned with the axial center of the socket 45 with the tip of the plug 46 placed on the temporary placement means 57, and after the adjustment, the plug 46 can be inserted toward the socket 45 as shown in Fig. 14(B), which makes the work much easier. [Explanation of symbols]

[0078] 1 Scaffolding board 2. Flooring 3 Digit Side Frame 3A 1st digit side frame 3B Second girder side frame 4 Gable side frame 4A First gable side frame 4B Second gable side frame 5 Center Frame 6a First end 6b Second end 7 Sockets 8 Plug 9 Connecting pin 10 long hole 11 Cable 12 Window hole 13 Hanging bracket 20 Sidewall Panel 21-digit side frame 21A 1st digit side frame 21B 2nd girder side frame 22 Middle rail frame 23 Gable side frame 23A First end frame 23B 2nd gable side frame 24 Panel Board 24A 1st panel 24B 2nd panel 24a Girder side edge 24b Gable side edge 24c Inner edge 25 Retaining frame (gable side frame) 26 Connecting frame (gable side frame) 26a First end 26b Second end 27 Reinforcement frame (middle frame) 28 Joint frame (middle crosspiece frame) 29 Mounting hardware 29a Fixed plate part 29b Projecting plate part 29c Insertion space 30 Bracket 30A First Bracket 30B Second bracket 32 Fitting groove (beam side frame) 33 Retaining groove (beam side frame) 33a, 33b Ribs 34 Storage groove 35 Hollow cylinder section (joint frame) 35a Window hole 36 Retaining groove (joint frame) 36a, 36b Ribs 37 Rivet 38 Metal fittings 38a Mounting bolt 39 Female thread means 39a Metal cylinder 40 Retaining groove (retaining frame) 40a, 40b Ribs 41 Support groove 41a, 41b Ribs 42 Nut means (assembly fittings) 43 Bolt insertion hole 44 Volts 45 Socket 46 Plug 46a long hole 47 Connecting pin 47a Connecting means 48 Support bracket 48a Support plate part 48b Back plate part 49 Connecting bracket 49a Fixation part 49b Connecting seat 49c Reinforcement 50a, 50b Nut means 51 Bolt insertion hole 52 Volts 53 Bolt insertion hole 54 Volts 55a, 55b Insertion and locking holes 55c communication hole 56a, 56b Keeping holes 57 Temporary storage means 58 Insertion member (plug) 58a Lower part 58b Upper member 59 Guide means 59a Tongue piece

Claims

1. In a suspended scaffolding in which a floor surface is formed by sequentially lining up a number of scaffolding boards suspended by cables from an existing structure in a predetermined extension direction, and a scaffolding is constructed on the floor surface, the side wall panels are lined up in an upright state along the edges of the scaffolding boards, and adjacent side wall panels are provided with joint devices for connecting them to each other, The side wall panel (20) has a panel plate (24) disposed between a first girder side frame (21A) and a second girder side frame (21B) that are spaced apart and arranged in parallel, and a first end side frame (23A) and a second end side frame (23B) are erected at predetermined positions near both ends of the first girder side frame and the second girder side frame, The first end side frame and the second end side frame are formed by juxtaposing a holding frame (25) that holds the end side edge (24b) of the panel plate and a connecting frame (26) that constitutes the joint device (J), and by connecting both ends of the holding frame (25) and the connecting frame (26) with a bracket (30) to form an integrated unit, and the bracket (30) is fixed to the first girder side frame (21A) and the second girder side frame (21B).

2. The first girder side frame (21A) and the second girder side frame (21B) have fitting grooves (32) formed on their opposing wall surfaces, the fitting grooves (32) extending over the entire length of the frames, The first end frame (23A) and the second end frame (23B) are integrated by connecting both ends of the holding frame (25) and the connecting frame (26) with a bracket (30), and the bracket is provided with a fixing portion (49a) that is slidably inserted into the fitting groove (32), A side wall panel in a suspended scaffolding as described in claim 1, characterized in that the bracket is removably fixed to the first girder side frame and the second girder side frame with the first end side frame (23A) and the second end side frame (23B) positioned at the specified position by inserting the fixing portion (49a) of the bracket into the fitting groove (32).

3. the first girder side frame (21A) and the second girder side frame (21B) are provided with holding grooves (33) for holding the girder side edge portions (24a) of the panel plates (24); A side wall panel in a suspended scaffolding as described in claim 1 or 2, characterized in that the supporting frames (25) in the first end side frame and the second end side frame are provided with supporting grooves (40) for supporting the end side edge portions (24b) of the panel boards (24).

4. A side wall panel in a suspended scaffolding as described in claim 3, characterized in that at least one of the retaining grooves (33) that holds the girder side edge (24a) of the panel plate and the retaining groove (40) that holds the gable side edge (24b) of the panel plate is configured to hold the edge of the panel plate in a tight contact state with caulking material over at least a portion of the entire length of the retaining groove.

Images