Scaffolding for paving

Abstract

To provide easy-to-use scaffolding for paving work in confined construction sites. [Solution] In a paving scaffolding 1 equipped with scaffolding members 9 on which workers stand to construct pavement on a cut surface P2 obtained by cutting an asphalt pavement surface P1 (road surface), the scaffolding members 9 are supported by a pair of trolleys 12, the pair of trolleys 12 are equipped with a turntable 49 on a table 37, and the scaffolding members 9 are supported on the turntable 49.

Description

Technical Field

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[0001] The present invention relates to a scaffolding for paving.

Background Art

[0002] Conventionally, when performing concrete paving, there has been a technique of leveling the concrete using heavy machinery (see, for example, Patent Document 1). Patent Document 1 discloses a concrete finisher as a heavy machine provided with a screed capable of finishing the surface of concrete, which is provided at the lower part of the machine body.

Prior Art Documents

Patent Documents

[0003] <00**********16>

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] [[ID=*******35]]However, in cases where the construction site is narrow, such as when paving the parking strip of a highway, it may be difficult to use heavy machinery. In order to finish the surface of the placed concrete, a scaffolding for workers to ride on, which is bridged above the concrete, is required. On the other hand, conventional scaffolding has the problem of being inconvenient to use in narrow construction sites. The present invention has been made in view of the above circumstances, and an object thereof is to provide a paving scaffolding that is easy to use in a narrow construction site.

Means for Solving the Problems

[0005] To achieve the above object, the present invention provides a paving scaffolding including a scaffolding member for workers to ride on for performing paving work on a cut road surface obtained by cutting a road surface, wherein the scaffolding member is supported by a pair of carts, the pair of carts are provided with a turntable on a table, and the scaffolding member is supported on the turntable. [Effects of the Invention]

[0006] According to this invention, a pair of trolleys can be moved to adjust the scaffolding members to various positions and angles. Therefore, it is easy to use in confined construction sites. [Brief explanation of the drawing]

[0007] [Figure 1] This is a schematic diagram showing an example of a concrete pavement construction site. [Figure 2] This is a side view showing the scaffolding used for paving and the poured concrete. [Figure 3] This is a top view of the paving scaffolding, seen from above, with the plate members removed. [Figure 4] This is a top view of the connecting member. [Figure 5] This is a side view of the paving scaffolding as seen from the trolley side. [Modes for carrying out the invention]

[0008] (Embodiment) Embodiments of the present invention will be described below with reference to the drawings.

[0009] [Outline of structure] Figure 1 is a schematic diagram showing an example of a concrete pavement construction site. The illustrated construction site is an example of a narrow construction site. The construction site is, for example, a parking area on a highway. A trapezoidal cut surface P2 is formed on the asphalt pavement surface P1 for the parking area. The cut surface P2 is the surface created by cutting the asphalt pavement surface P1, and the cut surface P2 is lower than the asphalt pavement surface P1. The cut surface P2 is enclosed by formwork 2. Concrete C is poured inside the formwork 2, and the concrete C is leveled by the workers. The workers perform the leveling work while standing on paving scaffolding 1, which is shown by a dashed line in the figure. The cut surface P2 is surrounded by a regulatory fence 61, and even during work, vehicles can pass over the asphalt pavement surface P1 outside the regulatory fence 61.

[0010] [Structure of scaffolding for paving] Figure 2 is a side view of the paving scaffold 1 on which workers stand, and Figure 3 is a top view of the paving scaffold 1 viewed from above with the plate member 13, which will be described below, removed. Figure 4 is a top view of the connecting member 25, which will be described below. Figure 5 is a side view of the paving scaffold 1 viewed from the trolley 12 side. As shown in Figure 2, the paving scaffold 1 comprises a scaffold member 9 and a movable trolley 12 that supports the scaffold member 9.

[0011] The scaffolding member 9 comprises a square pipe member 10 and a plate member 13 positioned on the upper surface of the square pipe member 10. As shown in Figure 3, the square pipe member 10 is formed by arranging two square pipes 10A and 10B with a gap in the width direction, and connecting both ends of the two square pipes 10A and 10B with a connecting member 25. The connecting member 25 is made of aluminum and comprises a pair of connecting pipes 27, as shown in Figure 4. A pair of connecting pipes 27 are connected in parallel by a first pipe 29 and a second pipe 31. One connecting pipe 27A has width W × height H (see Figure 5) and is inserted through the hollow section of a square pipe 10A with width W1 × height H1 (see Figure 5). The other connecting pipe 27B also has width W × height H and is inserted through the hollow section of a square pipe 10B with width W1 × height H1. Width W < width W1 and height H < height H1.

[0012] The first pipe 29 is made of aluminum with a rectangular cross-section, and the second pipe 31 is made of aluminum with a circular cross-section. The second pipe 31 is positioned outside the first pipe 29 and is circular in shape, which makes it easier to grip the second pipe 31 and insert the pair of connecting pipes 27, thereby facilitating the assembly of the square pipes 10A and 10B. After inserting the pair of connecting pipes 27, it is desirable to wrap the connecting pipes 27 and the square pipes 10A and 10B with adhesive tape (not shown) to prevent them from coming loose. In this way, the square pipes 10A and 10B are connected by the connecting member 25.

[0013] The plate member 13 is placed on top of the two square pipes 10A and 10B, and the plate member 13 and the square pipes 10A and 10B are preferably connected by wrapping them with adhesive tape (not shown). Although various connection methods were considered, connecting with tape is the simplest and most reliable method for assembling the paving scaffolding 1.

[0014] The total length of the square pipes 10A and 10B of the scaffolding member 9 is, for example, 10m. The scaffolding member 9 is divided into two parts in the longitudinal direction to improve transportability and workability, forming scaffolding division members 9A and 9B. Scaffolding division member 9A includes square pipes 10A-1 and 10B-1, and scaffolding division member 9B includes square pipes 10A-2 and 10B-2. The lengths of the square pipes 10A-1, 10B-1, and 10A-2, 10B-2 are, for example, 5m each.

[0015] The scaffolding division members 9A and 9B are connected by an aluminum connecting member 11. As shown in Figure 3, the connecting member 11 comprises a pair of hollow members 21A and 21B. The hollow members 21A and 21B are connected to each other by a rod-shaped connecting portion 23.

[0016] When the scaffolding division members 9A and 9B are connected by the intermediate member 11, a square pipe 10A-1 is inserted through one end of the hollow member 21A, and a square pipe 10A-2 is inserted through the other end. Similarly, a square pipe 10B-1 is inserted through one end of the hollow member 21B, and a square pipe 10B-2 is inserted through the other end. As shown in Figure 2, the pair of hollow members 21A and 21B have an upwardly convex mountain shape on the upper surface 22A when viewed from the side, and a downwardly convex mountain shape on the lower surface 22B when viewed from the side.

[0017] Thus, since the upper surface 22A has a convex mountain shape in side view, the hollow of the hollow members 21A and 21B is wide at the central portion. Also, since the lower surface 22B has a concave mountain shape in side view, the opening on the insertion side of the square pipe member 10 is wide. According to these configurations, it becomes easier to insert the square pipe member 10 into the hollow members 21A and 21B. Further, in FIG. 2, a state where the weight of the worker is applied to the scaffold member 9 is shown. When no weight is applied, since the hollow at the central portion of the hollow members 21A and 21B is wide, even if a load causing the scaffold dividing members 9A and 9B to swing up and down acts, the swing width can be absorbed, increasing stability.

[0018] When the worker M is not on the scaffold member 9, the square pipe member 10 inserted into the hollow members 21A and 21B is provided facing upward along the mountain-shaped upper surface 22A. When the worker M gets on the scaffold member 9, due to the load, the square pipe member 10 deflects and sinks. According to this, the inner end portion of the square pipe member 10 inserted into the hollow members 21A and 21B abuts against the bottom of the lower surface 22B of the hollow members 21A and 21B. Thus, the upper surface 22A of the scaffold member 9 on which the worker M gets on approaches flatness, making it easier for the worker M to work.

[0019] FIG. 5 shows a side view of the cart 12. The cart 12 includes a base portion 35, a handle 39, and four tires 41, and is a cart that can be moved by pushing. The tires 41 are provided with a stopper (not shown) that restricts the rotation of the tires 41. An elevating table 37 is disposed on the base portion 35. The table 37 is supported by intersecting leg portions 43. The leg portions 43 are rotatable about a rotation axis 45, and the table 37 is vertically movable by operating a lever 33. A turntable 49 that is rotatable about a vertical axis is disposed on the table 37.

[0020] <000^099>The turntable 49 is provided with a holding member 51 that holds the scaffold member 9. The holding member 51 includes a pair of wall portions 53 that rise upward and is formed in a substantially U shape. The outer end portion of the square pipe member 10 is placed on the holding member 51. The wall portions 53 prevent the square pipe member 10 from slipping off the holding member 51.

[0021] [Assembly of scaffolding for paving] An example of how to assemble the paving scaffolding 1 is described below. The inner ends of the four square pipes 10A-1, 10B-1, 10A-2, and 10B-2 are inserted through the hollow members 21A and 21B of the connecting member 11. At this time, pins may be inserted into holes (not shown) formed in the hollow members 21A and 21B and the square pipes to prevent them from coming loose. Next, connecting members 25 are inserted through the outer ends of two parallel square pipe members 10. Next, plate members 13 are placed on top of the square pipe members 10. Finally, each part is wrapped and secured with tape.

[0022] In this way, the four square pipes 10A-1, 10B-1, 10A-2, 10B-2, the intermediate member 11, the connecting member 25, and the plate member 13 are assembled together to form the scaffolding member 9. Next, the outer ends of the square pipes 10A-1 and 10B-1 of the scaffolding member 9 are placed on the holding member 51 of one trolley 12, and the square pipes 10A-2 and 10B-2 are placed on the holding member 51 of the other trolley 12. Furthermore, the outer ends and the holding member 51 are secured by wrapping them with tape. With the above steps, the paving scaffolding 1 is assembled.

[0023] [Operation of Embodiment 1] In this embodiment 1, as shown in Figure 1, concrete C is poured for a trapezoidal parking area, and scaffolding members 9 are stretched across the concrete C. In assembling the scaffolding members 9, since they are divided into individual members beforehand, transportability is improved, and the scaffolding members 9 loaded on a vehicle can be easily carried by a person. Furthermore, due to the structure of the intermediate members 11, they can be easily assembled without the use of heavy machinery.

[0024] First, the scaffolding members 9, supported by one trolley 12X on the asphalt pavement P1 side and the other trolley 12Y on the cut surface P2 side, are positioned at position F1. If the heights of the asphalt pavement surface P1 and the milled surface P2 are different, one trolley 12X is lowered and its table 37 is lowered, while the other trolley 12Y is raised and its table 37 is raised, so that the scaffolding members 9 are horizontal. The worker stands on the scaffolding members 9 and first performs leveling work on the concrete C around position F1.

[0025] Next, the scaffolding member 9 is moved from position F1 to position F2. At this time, one trolley 12X moves from position F1 to position F2 on track X1, and the other trolley 12Y moves from position F1 to position F2 on start Y1, and the scaffolding member 9 moves from position F1 to position F2. At this time, the trolleys 12X and 12Y move in an arc, but the rotation of the turntable 49 allows the scaffolding member 9 and the trolleys 12X and 12Y to move together. When the scaffolding member 9 is stopped appropriately between position F1 and position F2, the worker M can perform the finishing work on the surface of the concrete C.

[0026] From position F2 towards position F3, the trolleys 12X and 12Y move in a straight line along tracks X2 and Y2, stopping as needed along the way, while worker M performs surface finishing work on the concrete C. The surface finishing work on the concrete C is done using tools such as rakes and trowels. Worker M performs this finishing work by standing and crouching on the scaffolding members 9. The cut road surface P2 where concrete C is not poured will be paved again with asphalt mixture after the concrete paving is completed.

[0027] As shown in Figure 1, the paving scaffolding 1 according to this embodiment 1 is particularly suitable for construction sites where the work area is narrow or uneven, requiring adjustment of the position and angle of the scaffolding.

[0028] [Effects of Embodiment 1] In a paving scaffolding 1 equipped with scaffolding members 9 on which workers stand to construct pavement on a cut surface P2 obtained by cutting an asphalt pavement surface P1 (road surface), the scaffolding members 9 are supported by a pair of trolleys 12, the pair of trolleys 12 are equipped with a turntable 49 on a table 37, and the scaffolding members 9 are supported on the turntable 49. This configuration allows the scaffolding members 9 to be adjusted to various positions and angles by moving a pair of trolleys 12. Therefore, it is easy to use in confined construction sites.

[0029] Furthermore, the turntable 49 is equipped with a holding member 51 for holding the scaffolding member 9. With this configuration, even when the trolley 12 rotates and moves, the square pipe member 10 will not slip off the holding member 51.

[0030] Furthermore, table 37 is a height-adjustable table. With this configuration, even if the construction site is narrow and has steps, the trolley 12 can be positioned horizontally, and the square pipe members 10 and plate members 13 can be positioned horizontally. Therefore, it is easy to use in narrow construction sites.

[0031] Furthermore, the scaffolding member 9 is divided into two scaffolding division members 9A and 9B in the longitudinal direction, and the two scaffolding division members 9A and 9B are connected by a relay member 11. This configuration allows the two scaffolding division members 9A and 9B to be arranged in a straight line, thereby increasing the longitudinal width of the paving scaffolding 1. Furthermore, it improves the strength of the paving scaffolding 1.

[0032] Furthermore, the scaffolding division members 9A and 9B are equipped with square pipe members 10, and the square pipe members 10 are formed by arranging a plurality of square pipes 10A and 10B at intervals in the width direction and connecting each square pipe 10A and 10B with a connecting member 25, and the intermediate member 11 is equipped with a pair of hollow members 21, and the square pipes 10A and 10B of the square pipe members 10 are inserted through the hollows of the pair of hollow members 21 and connected. Furthermore, since displacement that would cause a change in the spacing between the two rows of square pipes 10A and 10B is restricted, the strength of the paving scaffolding 1 is improved.

[0033] Furthermore, the pair of hollow members 21 have an upper surface 22A that is convex upward when viewed from the side, and a lower surface 22B that is convex downward when viewed from the side. With this configuration, the opening on the side of the hollow member 21 where the square pipe member 10 is inserted is wide. Therefore, it becomes easier to insert the square pipe member 10 into the hollow member 21.

[0034] (Other embodiments) Although the present invention has been described above based on one embodiment, the present invention is not limited thereto. For example, the example shows a configuration where the square pipes 10A and 10B are each 5m long, and the total length of the scaffolding member 9 is approximately 10m. However, the example is not limited to this, and the lengths may be changed as appropriate. Also, although the example shows two square pipes arranged in a straight line, the example is not limited to this, and three or more square pipes may be arranged in a straight line. Furthermore, one square pipe may be arranged in a straight line and in two rows. In addition, the square pipes may be arranged in three or more rows.

[0035] Furthermore, although Figure 1 illustrates a configuration in which two plate members 13 are placed on top of the scaffolding member 9, the configuration is not limited to this, and the plate members 13 may be divided as appropriate and arranged in groups of three or more. Furthermore, multiple paving scaffolding units 1 may be used at the construction site. [Explanation of symbols]

[0036] 1. Scaffolding for paving 9 Scaffolding components 9A, 9B Scaffolding division members 10 square pipe member 10A, 10B, 10A-1, 10B-1, 10A-2, 10B-2 square pipes 11. Intermediate member 22A Top 22B Bottom 12 bogies 13 Plate members 25 Connecting member 27 Connecting pipes 29. First pipe 31 Second pipe 37 Tables 41 tires 49 Turntable 51 Retaining member 53 Wall C Concrete M worker P1 Asphalt paved road surface P2 Cutting road surface

Claims

1. In a paving scaffold equipped with scaffolding members for workers to stand on when constructing pavement on a cut road surface, The scaffolding members are supported by a pair of trolleys. The pair of trolleys are equipped with a turntable on a table, The scaffolding member is supported on the turntable. Scaffolding for paving.

2. The turntable includes a holding member for holding the scaffolding member. The paving scaffolding according to claim 1.

3. The aforementioned table is a height-adjustable table. The paving scaffolding according to claim 1.

4. The aforementioned scaffolding member is divided into two scaffolding division members in the longitudinal direction. The two aforementioned scaffolding division members are connected by a connecting member. The paving scaffolding according to claim 1.

5. The aforementioned scaffolding division member includes a square pipe member, The aforementioned square pipe member is formed by arranging multiple square pipes at intervals in the width direction and connecting each square pipe with a connecting member. The aforementioned relay member comprises a pair of hollow members, and the square pipe of the square pipe member is inserted through the hollows of the pair of hollow members to connect them. The paving scaffolding according to claim 4.

6. The pair of hollow members have an upper surface that is convex upwards when viewed from the side, and a lower surface that is convex downwards when viewed from the side. The paving scaffolding according to claim 5.

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