Suspended scaffolding and method for forming the same

Abstract

To provide a hanging scaffold which can be hung easily, and which has high safety.SOLUTION: A hanging scaffold includes: a lattice-like support frame body hung from above; and a floor material laid on an upper surface of the support frame body. The lattice-like support frame body is formed by connecting a plurality of vertical materials and a plurality of horizontal materials. At least at one of the vertical material and the horizontal material, a hanging tool is mounted for connecting a lower end part of a hanging member. At the vertical material, at a tip and a rear end in the longer direction of the vertical material respectively, a tip joint receiving metal fitting and a rear end joint metal fitting which are mutually connectable are mounted so as to connect the vertical materials sequentially in the longer direction and extend them. The tip joint receiving metal fitting which the first vertical material hung horizontally has includes: a reception part in which the rear end joint metal fitting of the second vertical material is placed in a vertical posture; and a pivotal attachment part for pivotally attaching the other vertical material placed in the vertical posture so as to rotate toward the longer direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a suspended scaffolding used for construction work, repair work and the like of elevated expressways, bridges and the like, and a method for forming the same.

Background Art

[0002] Generally, in repair and inspection work for bridge girders such as bridges and expressways, since the area below the bridge girder is often a river or a roadway, it is impossible to erect temporary scaffolding from the ground. For this reason, suspended scaffolding that is hung and installed on a bridge girder is often constructed.

[0003] Patent Document 1 describes that when connecting suspended scaffolding panels to each other to form a suspended scaffolding, a rod-shaped or tubular deposit fitting is provided at the connecting portion of one suspended scaffolding panel, and receiving fittings are provided at both ends of the connecting portion of the other suspended scaffolding panel to connect the two panels.

Prior Art Literature

Patent Literature

[0004]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0005] The suspended scaffolding described in Patent Document 1 is for connecting large and heavy panels to each other. Therefore, it is difficult for a single person to perform the work of engaging and connecting the deposit fitting of one suspended scaffolding panel to the receiving fitting of the other suspended scaffolding panel. Moreover, since attention must be paid to the connection between panels in consideration of safety, there is a problem that workability is low. Further, in the suspended scaffolding described in Patent Document 1, a gap is formed between the connected panels, so there is a problem that bolts and tools easily fall through this gap. This is particularly dangerous when the area below the suspended scaffolding is a road, a sidewalk, or the like.

[0006] The objective of this invention is to provide a suspended scaffold that can be easily suspended and offers high safety. [Means for solving the problem]

[0007] The suspended scaffolding of the present invention comprises a lattice-shaped support frame suspended from above and a flooring material laid on the upper surface of the support frame. The lattice-shaped support frame is formed by connecting a plurality of vertical members and a plurality of horizontal members, and a suspension device for connecting the lower end of a suspension member is attached to at least one of the vertical members and horizontal members. The vertical members have a front joint receiving fitting and a rear joint fitting attached to the front and rear ends in the longitudinal direction of the vertical members, respectively, for sequentially connecting and extending the vertical members in the longitudinal direction. When a horizontally suspended vertical member is designated as the first vertical member, and a vertical member connected to this first vertical member is designated as the second vertical member, the front joint receiving fitting of the first vertical member comprises a receiving portion on which the rear joint fitting of the second vertical member is placed in a vertical position, and a pivoting portion that pivotally attaches the vertical member of the second vertical member, which is placed in a vertical position, so that it can rotate in the longitudinal direction. The vertical and horizontal members mentioned above should preferably have a truss structure with an upper frame and a lower frame.

[0008] The present invention provides a method for forming a suspended scaffold, which involves connecting multiple vertical members and multiple horizontal members in a top view to form a lattice-shaped support frame, connecting the lower end of a suspension member to a suspension device attached to at least one of the vertical members and horizontal members, and further laying flooring material on the upper surface of the support frame. The vertical members are fitted with a front joint receiving fitting and a rear joint fitting, respectively, at their longitudinal ends, in order to connect and extend the vertical members sequentially along their longitudinal direction. When a horizontally suspended vertical member is designated as the first vertical member, and a vertical member connected to this first vertical member is designated as the second vertical member, the connection of the rear end joint fitting of the second vertical member to the end joint receiving fitting of the first vertical member is performed by placing the rear end joint fitting of the second vertical member in a vertical position on the receiving portion of the end joint receiving fitting of the first vertical member, pivotally attaching the end joint receiving fitting and the rear end joint fitting so as to be rotatable, and then rotating the vertically positioned second vertical member to a horizontal position in the longitudinal direction. [Effects of the Invention]

[0009] The suspended scaffolding of the present invention is simpler and safer than conventional methods that connect large, heavy scaffolding panels themselves, as it involves connecting lightweight vertical and horizontal members to form a lattice-like support frame and laying flooring material on the upper surface of the support frame. Furthermore, because flooring material is laid on the upper surface of the support frame, any gaps in the connections of the lattice-like support frame can be easily filled with the flooring material. Furthermore, when using vertical and horizontal members with a truss structure, a lightweight yet highly rigid support frame can be formed. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing a suspended scaffold according to one embodiment of the present invention. [Figure 2] This is a side view showing the details of section M in Figure 1. [Figure 3] (a) and (b) are explanatory diagrams showing the details of the connection method in Figure 2. [Figure 4] This is a perspective view showing the connection method in Figure 3(a). [Figure 5] This is a plan view showing an example of a lattice-like support frame formed by connecting multiple vertical members and multiple horizontal members. [Figure 6] (a) is a plan view of the vertical member, and (b) is a side view thereof. [Figure 7] (a) is a side view showing the mounting structure of the suspension device to the vertical member, and (b) is a cross-sectional view of (a) along line AA. [Figure 8](a) is a plan view of a cross member, (b) is a side view thereof, and (c) is a sectional view taken along line B-B of (a). [Figure 9] (a) is a plan view showing a starter vertical member, and (b) is a side view thereof. [Figure 10] (a) is a sectional view showing a connected state of an upper front end joint receiving bracket and an upper rear end joint bracket of a vertical member, and (b) is a side view thereof. [Figure 11] (a) is a sectional view showing a connected state of a lower front end joint receiving bracket and a lower rear end joint bracket of a vertical member, and (b) is a side view thereof. [Figure 12] (a) is a plan view showing an example of a front end joint receiving bracket, (b) is a side view thereof, and (c) is a front view thereof. [Figure 13] (a) is a plan view showing an example of a rear end joint bracket, (b) is a side view thereof, and (c) is a front view thereof. [Figure 14] (a) is a plan view showing an example of a side joint receiving bracket for connecting cross members, (b) is a side view thereof, and (c) is a front view thereof. [Figure 15] (a) is a plan view showing an example of a gravity pin, and (b) is a side view for explaining the use state thereof. [Figure 16] It is an exploded view of the gravity pin shown in Fig. 15. [Figure 17] (a) is a plan view showing an example of a use state of a connecting member at a connecting portion of adjacent support frames, and (b) is a front view thereof. [Figure 18] It is a plan view showing the connecting member. [Figure 19] (a) is a side view showing one of the slide members shown in Fig. 18, (b) is a side view thereof, and (c) is a front view thereof. [Figure 20] It is a side view showing a state where the connecting member is expanded. [Figure 21] (a) is a schematic plan view for explaining a fixing method of a floor material (however, for convenience of explanation, the floor material is not shown), and (b) is a sectional view taken along line C-C thereof. [Figure 22](a) is a plan view of the floor material fastener, (b) is a side view thereof, and (c) is a cross-sectional view of (b) along line B-B. [Figure 23] This is a plan view showing an example of a band used in conjunction with a floor material fastener. [Modes for carrying out the invention]

[0011] Hereinafter, a suspended scaffold according to one embodiment of the present invention will be described based on the drawings. Figure 1 is a perspective view showing the suspended scaffold 1 of this embodiment. This suspended scaffold 1 comprises a support frame 2 and flooring material 3 laid on the upper surface of the support frame 2, and is suspended horizontally from above by a suspension member 4 such as a chain. The upper end of the suspension member 4 is fixed to the underside of a bridge or the like.

[0012] As shown in Figure 5, which will be described later, the support frame 2 is formed in a grid pattern by sequentially connecting multiple vertical members 6 and multiple horizontal members 7 in the x and y directions shown in Figure 5 when viewed from above. Returning to Figure 1, the part indicated by the symbol M shows how worker 8 connects the vertical members 6 in the x-direction of the already installed support frame 2. Figure 2 is a side view showing the details of part M, where the support frame 2, suspended horizontally by the suspension member 4, has flooring material 3 laid on its upper surface. Worker 8 places the rear end of another vertical member 6 (hereinafter sometimes referred to as the second vertical member 62) in a vertical position on the tip of a vertical member 6 (hereinafter sometimes referred to as the first vertical member 61) located at the x-direction end of the support frame 2, pivotally attaches it so that it can rotate, and then tilts it forward as indicated by the arrow to connect them (details will be described in more detail next). The horizontal members 7 are connected between adjacent vertical members 6. This operation is repeated to form the support frame 2.

[0013] Figures 3(a), (b) and 4 show the method of connecting the first vertical member 61 and the second vertical member 62. A tip joint receiving fitting 10 is attached to the end face of the first vertical member 61 in the longitudinal direction (i.e., the same direction as the x-direction shown in Figure 1, and so on). The tip joint receiving fitting 10 includes an upper tip joint receiving fitting 10a and a lower tip joint receiving fitting 10b, which are provided at the upper and lower ends of the tip of the vertical member 6, respectively. Furthermore, a rear end joint receiving bracket 11 is attached to the rear end surface in the longitudinal direction of the second vertical member 62. The rear end joint receiving bracket 11 includes an upper rear end joint receiving bracket 11a and a lower rear end joint receiving bracket 11b, which are provided at the upper and lower parts of the rear end of the vertical member 6, respectively. A suspension device 9 is attached to the tip of the vertical member 6 for connecting the lower end of the suspension member 4. To connect the first vertical member 61 and the second vertical member 62, as shown in Figures 3(a) and 4, first, the upper rear end joint receiving fitting 11a of the second vertical member 62, which is in a vertical position, is placed on the upper end joint receiving fitting 10a of the first vertical member 61, and the upper rear end joint receiving fitting 11a is rotatably connected to the upper end joint receiving fitting 10a. Next, as shown in Figure 3(b), the second vertical member 62 is tilted forward, and the lower rear end joint receiving fitting 11b is connected to the lower end joint receiving fitting 10b. The horizontal members 7 are connected in the same manner.

[0014] Figure 5 shows a support frame 2 formed by connecting multiple vertical members 6 and multiple horizontal members 7 in a grid pattern. In Figure 5, the area indicated by reference numeral 5 is the starter section, and the vertical members 6 are sequentially connected forward (in the x-direction) from this starter section 5. Then, adjacent vertical members 6, 6 are connected to each other with horizontal members 7 to form the grid-like support frame 2. The starter section 5 is basically the same as the other parts that connect the vertical members 6 and horizontal members 7 in a grid pattern, but the vertical members 6' of the starter section 5 have lifting devices 9, 9 attached to both ends in the longitudinal direction, as shown in Figure 9, and are also shorter in length than the vertical members 6. The reason for attaching the lifting devices 9, 9 to both ends of the vertical members 6' is that the starter section 5 needs to maintain a horizontal position on its own for workers to work on. Furthermore, the vertical members 6 may also have hanging devices 9, 9 attached to both ends in the longitudinal direction.

[0015] As shown in Figure 5, connecting sections 12 are provided between the lattice-shaped support frames 2, 2. These connecting sections 12 connect adjacent support frames 2, 2. In other words, because the width of the suspended scaffolding 1 to be formed (length in the y-direction shown in Figure 5) differs depending on the installation location, the gaps between the support frames 2, 2 are connected by connecting members 121, and floorboards are laid on top of them to close the gaps between the support frames 2, 2. The connecting members 121 will be described later.

[0016] Figures 6(a) and (b) are plan and side views showing an example of a vertical member 6, which has a truss structure made of thin steel plates or the like. Specifically, the vertical member 6 has an upper frame 6a and a lower frame 6b, with diagonal bridging members 6c spanning between them, forming a framework structure composed of a collection of triangles as the basic unit, and the joints, which are the nodes, are connected with bolts or pins. Because of this truss structure, the vertical member 6 has the advantage of being lightweight and highly rigid. Upper end joint receiving fittings 10a and lower end joint receiving fittings 10b are attached to the ends of the vertical members 6, and upper rear end joint receiving fittings 11a and lower rear end joint receiving fittings 11b are attached to the rear ends. In addition, side joint receiving fittings 20 for connecting the horizontal members 7 are attached to both sides.

[0017] Figures 7(a) and 7(b) show the structure of the suspension device 9 attached to the tip of the vertical member 6 and its surroundings. The suspension device 9 consists of a rod 91 with screw grooves 151 and 152 formed at both ends, and an eye bolt 92 screwed into the screw groove 151 at the upper end of the rod 91. The upper frame 6a and lower frame 6b of the vertical member 6 are made of channel steel, and a groove 13 is formed on the upper surface of the upper frame 6a. Through holes 14a and 14b are formed in the groove 13 and the lower frame 6b, respectively, and a rod 91 passes through these through holes 14a and 14b. The threaded groove 152 at the lower end of the rod 91 protruding from the lower frame 6b is screwed into a nut 17 via a washer 161, and the lower frame 6b, washer 161 and nut 17, and the nut 17 and threaded groove 152 are further joined by welding or the like. In Figures 7(a) and (b), a washer 162 is fixed around the through hole 14a of the upper frame 6a by welding or the like, and the rod 91 with the washer 162 inserted is welded to the washer 162.

[0018] Figures 8(a), (b), and (c) show the horizontal members 7, which, like the vertical members 6, consist of a truss structure having an upper frame 7a, a lower frame 7b, and diagonal bridging members 7c that diagonally bridge them. The upper frame 7a has a groove 131 formed along its longitudinal direction on its upper surface, and a plurality of through holes 18 are formed in this groove 131. As shown in Figure 8(c), nuts 19 are attached below the through holes 18 by welding. These through holes 18 and nuts 19 are for attaching the floor material 3 with bolts 35 (see Figure 21(b)). In Figure 8(c), reference numeral 22 indicates a drainage hole. Joint fittings 21 are attached to both ends of the horizontal member 7 in the longitudinal direction, and these fittings connect to the side joint receiving fittings 20 of the vertical member 6.

[0019] Figure 9 shows the vertical member 6' used in the starter section 5, and like the vertical member 6, it has a truss structure. The ends of the vertical member 6' are fitted with upper end joint receiving fittings 10a and lower end joint receiving fittings 10b, similar to those of the vertical member 6, and side joint receiving fittings 20 for connecting the horizontal members 7 are attached to both ends of both sides. Furthermore, the vertical member 6' has lifting devices 9, 9 attached to both ends to maintain a horizontal position on its own.

[0020] Figure 10(a) is a cross-sectional view showing the connection between the upper end joint fitting 10a of the first vertical member 61 and the upper rear end joint fitting 11a of the second vertical member 62, and Figure 10(b) is a side view thereof. As shown in Figure 12, the upper end joint receiving fitting 10a comprises a base portion 101 with a U-shaped cross-section, and a pivot portion 102 and a receiving portion 103 whose base ends are fixedly held to the base portion 101 by welding or the like. As shown in Figure 10(a), the base portion 101 of the upper end joint receiving fitting 10a is fixed to the end surface of the upper frame 6a of the first vertical member 61 with bolts or the like. The support portion 103 is a horizontal support base for placing the second vertical member 62 in a vertical position when connecting the second vertical member 62, as shown in Figures 2 to 4. The pivot mounting portion 102 is for pivotally mounting the second vertical member 62, and as shown in Figure 12, it consists of two parallel plate members and has a through hole 23 through which a pin 24 is inserted.

[0021] As shown in Figure 13, the upper rear end joint fitting 11a comprises a plate-shaped base portion 111 and a pivot portion 112 whose base end is fixedly held to the base portion 111 by welding or the like. The base portion 111 is fixed to the front end surface of the upper frame 6a of the second vertical member 62 with bolts, rivets or the like. The pivot portion 112 of the upper rear end joint fitting 11a is made of a single plate or the like and is inserted between two parallel plates that constitute the pivot portion 102 of the upper tip joint receiving fitting 10a. Through holes 23 are formed in these pivot portions 102 and 112, and by aligning these through holes 23 and inserting a pin 24, the second vertical member 62 is pivotally attached to the first vertical member 61 so that it can rotate in the longitudinal direction. As a result, with the second vertical member 62 placed on the receiving portion 103 in a vertical position, the vertical members 6 can be easily and safely connected by tilting the second vertical member 62 forward (in the longitudinal direction).

[0022] Furthermore, as shown in Figures 10(a) and (b), side joint receiving brackets 20 for connecting the horizontal members 7 are attached to the upper parts of both sides of the first vertical member 61, and side joint fittings 21 that connect to the side joint receiving brackets 20 of the first vertical member 61 are attached to both ends of the horizontal member 7 in the longitudinal direction. For convenience, Figures 10(a) and (b) only show the attachment state on one side of the vertical member 61. As shown in Figures 14(a) to (c), the side joint receiving bracket 20 is the same as the upper end joint receiving bracket 10a except that the base portion 201 is flat, so it is given the same reference numeral and its description is omitted. The side joint fitting 21 is the same as the upper rear end joint fitting 11a described above, so it is given the same reference numeral and its description is omitted.

[0023] At both ends of the longitudinal direction of the vertical member 6, reinforcing plates 251 and 252 with a U-shaped cross-section are attached to the inside of the upper frame 6a and lower frame 6b by welding or the like for attaching the bases 101 and 111. The bases 101 and 111 are attached to the reinforcing plates 251 and 252 via the upper frame 6a and lower frame 6b by rivets 26. Alternatively, they may be attached by welding instead of rivets 26. Furthermore, on both sides of the first vertical member 61, reinforcing plates 251 and 252 with a U-shaped cross-section are attached to the inside of the upper frame 6a and lower frame 6b by welding or the like, in order to attach the base 201 of the side joint receiving bracket 20 with bolts 26.

[0024] Figure 11(a) is a cross-sectional view showing the connection between the lower end joint receiving fitting 10b of the first vertical member 61 and the lower rear end joint receiving fitting 11b of the second vertical member 62, and Figure 11(b) is a side view thereof. The lower end joint receiving fitting 10b is the same as the upper end joint receiving fitting 10a, so the same reference numeral is used and its description is omitted. The lower rear end joint fitting 11b has basically the same structure as the upper rear end joint fitting 11a, but the length L of the pivot portion 112' is greater than the length of the pivot portion 112 of the upper rear end joint fitting 11a. As shown in Figures 11(a) and (b), the tip of the pivot portion 112' is in contact with or close to the base portion 101 of the lower end joint receiving fitting 10b. As a result, when the second vertical member 62 is tilted forward starting from the pivot portion 102 of the upper end joint receiving fitting 10a, the pivot portion 112' of the lower rear end joint fitting 11b is inserted between the pivot portions 102 of the lower end joint receiving fitting 10b, and its tip is positioned to contact the base portion 101. This allows the second vertical member 62 to be stabilized in a horizontal position, and the subsequent attachment of the pin 24 can be easily performed.

[0025] Furthermore, as shown in Figures 11(a) and (b), side joint receiving fittings 20 for connecting the horizontal members 7 are attached to both lower sides of the first vertical member 61, similar to the upper sides shown in Figures 10(a) and (b), and side joint fittings 21 are attached to both ends of the horizontal member 7 in the longitudinal direction, which are connected to the side joint receiving fittings 20 of the first vertical member 61. As shown in Figures 14(a) to (c), the side joint receiving bracket 20 is the same as the upper end joint receiving bracket 10a except that the base portion 201 is flat, so it is given the same reference numeral and its description is omitted. The side joint fitting 21 is the same as the upper rear end joint fitting 11a described above, so it is given the same reference numeral and its description is omitted.

[0026] As the pin 24 used for pivoting in the pivoting portions 102, 112, and 112', for example, a gravity pin as shown in Figure 15(a) can be used, and (b) is a side view illustrating its usage. Figure 16 is an exploded view of the gravity pin shown in Figure 15. Such gravity pins are commercially available, for example, under the name "Snake Pin" (registered trademark). This pin 24 comprises a main body 24a inserted into the through hole 23, a first bent portion 24b pivotally attached to the tip of the main body 24a, and a second bent portion 24c pivotally attached to the tip of the first bent portion 24b. The tip of the main body 24a is formed in a bifurcated shape, and the rear end of the first bent portion 24b is inserted into it, the through hole 32 is aligned, and a rivet (not shown) is inserted and crimped, or a spring pin (not shown) is inserted. The connection between the first bent portion 24b and the second bent portion 24c can also be made by inserting a rivet or spring pin into the through hole 33. Furthermore, a through hole 34 is formed at the rear end of the main body 24a, and a ring, wire, or the like is attached to this through hole 34 to prevent the pin 24 from coming out and falling out.

[0027] Returning to Figure 5, in the connecting section 12 that connects adjacent support frames 2, 2, the adjacent support frames 2, 2 are connected by a connecting member 121. Figure 17(a) is a plan view showing the state of use of the connecting member 121, that is, the state of connection of the support frames 2, 2 by the connecting member 121, and Figure 17(b) is a front view thereof. As shown in Figure 18, the connecting member 121 comprises a length-adjusting member 30 having an elongated hole 29, and a pair of plate-shaped sliding members 28, 28, each having a projection 31 that slides freely through the elongated hole 29. In this embodiment, as shown in Figure 19, the sliding member 28 is made of a plate material formed in a U shape. The projection 31 is made of, for example, a bolt, and its head is fixed to the sliding member 28, 28 by welding or the like.

[0028] To attach the connecting member 121 between the support frames 2, 2, the side joint receiving fittings 20 located on the upper and lower sides of the opposing frames 6, 6 of the support frames 2, 2 are used, as shown in Figures 17(a) and (b). Specifically, as shown in Figure 17(b), the protrusions 281 located on the upper and lower ends of the pair of plate-shaped sliding members 28, 28 are attached to the side joint receiving fittings 20, 20 located on the upper and lower ends of the frame 6. To attach them, the protrusions 281 are inserted into the pivot portion 102 of the side joint receiving fitting 20, the through holes provided in the protrusions 281 are aligned with the through holes 23 provided in the pivot portion 102, and the aforementioned pins 24 are inserted and secured. Instead of the pins 24, bolts (not shown) may be inserted and secured with nuts. After attaching the sliding members 28, 28 to each of the opposing frame bodies 6, 6, the elongated holes 29 of the length adjustment member 30 are inserted through the respective projections 31, 31. Nuts (not shown) may also be screwed onto the bolts which are the projections 31, 31.

[0029] Next, the function of the connecting member 121 will be explained. Figures 17(a) and (b) show the case where the width of the connecting section 12 is at its minimum. If the width of the connecting section 12 is greater than this, as shown in Figure 20, the sliding members 28, 28 are slid in opposite directions along the elongated holes 29 of the length adjustment member 30 to widen the width to the required length, and then the sliding members 28, 28 are attached to the opposing side joint receiving fittings 20. Figure 20 shows the state in which the connecting member 121 is fully extended, and is applied when there is a wide gap between adjacent support frames 2, 2.

[0030] As shown in Figure 1, flooring material 3 is laid on the upper surface of the lattice-shaped support frame 2 and connecting section 12 suspended from above. For flooring material 3, for example, aluminum panels, wooden boards such as cedar boards, or steel scaffolding boards can be used. Figures 21(a) and (b) are schematic plan views illustrating the method of fixing the flooring material 3 onto the support frame 2 (however, the flooring material 3 is not shown), and (b) is a cross-sectional view along line CC (including the flooring material 3). As described above, Figure 21(a) shows the vertical members 6 connected to each other, the horizontal members 7 connected to the sides of the vertical members 6, and then the flooring material 3 laid on top of them (see Figure 21(b)). In this case, since the rod 91 of the suspension device 9 protrudes upward, when laying multiple flooring materials 3, the rod 91 becomes an obstacle, and a gap equivalent to the diameter of the rod 91 is created between the flooring materials 3, 3. Therefore, in this embodiment, as shown in Figures 21(a) and (b), gap-filling material 36 is used to fill the gap between the flooring materials 3, 3. The gap-filling material 36 is also used to attach the flooring materials 3.

[0031] The gap filler material 36 is made of metal and has a U-shaped cross-section with a predetermined width w that can fill the gap between the floor materials 3, 3, as shown in Figures 22(a) to (c). The height h of the gap filler material 36 is approximately equal to the thickness of the floor material 3. As shown in Figure 22(a), a notch 37 is formed at one end. This notch 37 engages with the rod 91 to position the gap filler material 36 (see Figure 21(a)). Furthermore, since the gaps between the floor materials 3, 3 are formed on the upper surface of the horizontal member 7 along the longitudinal direction of the horizontal member 7, the gap-filling material 36 has multiple protrusions 38 formed at predetermined intervals that fit into the groove 131 on the upper surface of the upper frame 7a. In addition, through holes 39 are formed in the gap-filling material 36 corresponding to the through holes 18 and nuts 19 provided in the groove 131 on the upper surface of the horizontal member 7 shown in Figure 8(c). Furthermore, a band 40 is used as a retaining material to prevent the flooring material 3 from being lifted by wind or other factors. As shown in Figures 21(a) and (b), the bolt 35 is inserted through the through hole 41 of the band 40, the through hole 39 of the gap filler material 36, and the through hole 18 of the groove 131 of the horizontal member 7, and screwed into the nut 19 on the lower surface of the through hole 18. Figure 23 shows the band 40, which is made of a metal plate (such as a galvanized steel plate) with through holes 41 formed at both ends.

[0032] Although embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications and improvements are possible within the scope of the present invention. For example, in the above embodiment, the suspension device 9 for connecting the lower end of the suspension member 4 is provided only on the vertical members 6 and 6', but it may also be provided on the horizontal member 7, or on both the vertical members 6 and 6' and the horizontal member 7. [Explanation of Symbols]

[0033] 1. Suspended scaffolding 2. Support frame 3. Flooring 4. Suspension component (chain) 5. Starter section 6, 6' vertical members 6a Upper frame 6b Bottom frame 6c Diagonal crosslinking material 7 Crosspiece 7a Upper frame 7b Bottom frame 7c Diagonal crosslinking material 8 workers 9. Lifting equipment 91 Rod Body 92 Eyebolt 10. End joint receiving fitting 10a Upper tip joint receiving fitting 101 Base 102 Shaft attachment part 103 Support stand 10b Lower tip joint receiving fitting 11. Rear end joint fitting 11a Upper rear end joint fitting 111 Base 112, 112´ shaft attachment part 11b Lower rear end joint fitting 12. Connecting section 121 Connecting material 13, 131 grooves 14a, 14b through hole 15a, 151, 152 thread grooves 16 Washer 17, 19 nuts 18 Through holes 20 Side joint mounting bracket 201 Base 21 Side joint fittings 22 drainage holes 23 Through hole 24 pins 24a Main Unit 24b First bend 24c Second folding section 251, 252, 253 Reinforcement plates 26 volts 28 Slide material 281 Protrusion 29 Slotted holes 30 Length adjustment material 31, 35 volts 31a head 32, 33, 34, 39 Through holes 36 Gap Filler 37 Notch 38 Protrusion 40 bands

Claims

1. This is a suspended scaffolding comprising a grid-like support frame suspended from above and flooring material laid on the upper surface of the support frame. The aforementioned lattice-shaped support frame is formed by connecting a plurality of vertical members and a plurality of horizontal members when viewed from above, and a suspension device for connecting the lower end of a suspension member is attached to at least one of the vertical members and the horizontal members. The aforementioned vertical member has a front joint receiving fitting and a rear joint fitting attached to its longitudinal front and rear ends, respectively, for sequentially connecting and extending the vertical member in its longitudinal direction. In a horizontally suspended vertical member, when one of two adjacent vertical members is designated as the first vertical member and the other as the second vertical member, the end joint receiving fitting of the first vertical member comprises a receiving portion and a pivot portion. The rear end joint fitting of the second vertical member is placed on the receiving portion and pivotally attached to the pivot portion so as to be rotatable in the longitudinal direction. Suspended scaffolding.

2. The suspended scaffolding according to claim 1, wherein the vertical members and horizontal members have a truss structure comprising an upper frame and a lower frame.

3. The aforementioned end joint receiving fitting includes an upper end joint receiving fitting and a lower end joint receiving fitting, which are provided at the upper and lower ends of the end of the vertical member, respectively. The suspended scaffolding according to claim 1 or 2, wherein the rear end joint fitting includes an upper rear end joint fitting and a lower rear end joint fitting provided at the upper and lower parts of the rear end of the vertical member, respectively.

4. The upper tip joint receiving fitting and the upper rear end joint fitting each have a pivot portion having a through hole for pivotally attaching to each other so as to be rotatable, The suspended scaffolding according to claim 3, wherein the upper tip joint receiving fitting is provided with a receiving portion below the pivot portion that supports the pivot portion of the upper rear end joint fitting.

5. The lower end joint receiving fitting and the lower rear end joint fitting each have a pivot portion having a through hole for pivotally attaching to each other so as to be rotatable. The suspended scaffolding according to claim 3, wherein the lower tip joint receiving fitting is provided with a receiving portion below the pivot portion that supports the pivot portion of the lower rear end joint fitting.

6. The vertical member has side joint receiving fittings attached to both sides for connecting the horizontal members. The suspended scaffolding according to claim 1 or 2, wherein side joint fittings are attached to both ends of the horizontal member in the longitudinal direction, and these fittings are connected to the side joint receiving fittings of the vertical member.

7. This method for forming a suspended scaffold involves connecting multiple vertical members and multiple horizontal members to form a lattice-like support frame in a top view, connecting the lower end of a suspension member to a suspension device attached to at least one of the vertical members and the horizontal members, and further laying flooring material on the upper surface of the support frame. The aforementioned vertical member has a front joint receiving fitting and a rear joint fitting attached to its longitudinal front and rear ends, respectively, for sequentially connecting and extending the vertical member in its longitudinal direction. A method for forming a suspended scaffold, wherein a vertical member suspended horizontally is designated as a first vertical member, and a vertical member connected to the first vertical member is designated as a second vertical member, and the connection of the rear end joint fitting of the second vertical member to the front end joint receiving fitting of the first vertical member is performed by placing the rear end joint fitting of the second vertical member in a vertical position on the receiving portion of the front end joint receiving fitting of the first vertical member, pivotally attaching the front end joint receiving fitting and the rear end joint fitting so as to be rotatable, and then rotating the vertically positioned second vertical member to a horizontal position toward the longitudinal direction.

Images