Construction method and jig for constructing scaffolding

Abstract

To improve the ease of construction of scaffolding hardware on a columnar object.SOLUTION: The present disclosure relates to a construction method for constructing scaffolding, including the steps of installing the two jigs on the sides of the columnar object, fixing the two jigs to the sides of the columnar object using a strip, and attaching screws into at least one of the plurality of screw holes.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a jig for constructing a scaffold on a columnar object and a construction method using the jig.

Background Art

[0002] There has been proposed a scaffolding metal fitting for attaching a scaffold to a columnar object having no hole for attaching a scaffold bolt (see, for example, Patent Document 1). The scaffolding metal fitting of Patent Document 1 uses one band for one scaffold. The scaffolds are installed every 400 mm left and right. Therefore, it is necessary to attach as many scaffolding metal fittings as the number of scaffolds until the required height is reached. In addition, since it is necessary to have a technique for attaching the band to the columnar object and a process for conforming the band to the column is required for sufficient tightening, there has been a problem of poor workability.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present disclosure is to improve the workability in attaching a scaffolding metal fitting to a columnar object.

Means for Solving the Problems

[0005] The jig of the present disclosure is a plate-shaped jig having a curved shape along the side surface of a columnar object, a screw hole to which a screw that can be used for a scaffold can be attached, and a holding portion for holding a belt-like body that goes around the columnar object, and is provided with a plurality of the screw holes are arranged in the longitudinal direction of the columnar object.

[0006] The construction method of the present disclosure is a construction method for constructing a scaffold using the jig of the present disclosure, a step of installing two of the jigs on the side surface of the columnar object; a step of fixing two of the jigs to the side surface of the columnar object using a belt-like body; a step of bringing at least one of the screws in a plurality of the screw holes into contact with the side surface of the columnar object; and includes.

[0007] The two jigs may have the same shape, and the two jigs may be installed on the side surface of the columnar object so that the upper and lower parts of the two jigs are in opposite directions.

[0008] In the longitudinal direction of the columnar object, the belt-like body may be rotatable at a position different from the screw hole. Further, at least any one of the intervals between the plurality of screw holes may be 800 mm or more and 1000 mm or less. Further, at least one of the plurality of screw holes may be such that the distance from the end installed along the longitudinal direction of the columnar object is 200 mm or more and 250 mm or less. The holding portion may be a plurality of through holes arranged in the short hand direction of the columnar object.

[0009] In addition, the above disclosures can be combined as much as possible.

Effect of the Invention

[0010] By constructing a scaffold using the jig of the present disclosure, the number of attachment of the flexible band which is a belt-like body can be reduced to half of the conventional one, so that the workability in attaching the scaffold hardware to the columnar object can be improved.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Note that the present disclosure is not limited to the embodiments shown below. These examples are merely illustrative, and the present disclosure can be implemented in various modified and improved forms based on the knowledge of those skilled in the art. In the present specification and drawings, components having the same reference numerals indicate the same components as each other.

[0013] FIG. 1 shows an example of an embodiment of the scaffolding hardware of the present disclosure. The scaffolding hardware according to this embodiment includes scaffolding boards 91 and 92, flexible bands 93-1 and 93-2, and scaffolding bolts 94 and 95. The scaffolding boards 91 and 92 are curved plate-like bodies arranged along the side surface of the target columnar object. The scaffolding boards 91 and 92 are fixed to the side surface of the columnar object using the flexible bands 93-1 and 93-2.

[0014] The columnar object may be a communication pole or a tree. As the flexible bands 93-1 and 93-2, any belt-like body that can go around the columnar object can be used. The scaffolding bolt 94 is a bolt attached to the scaffolding board 91 and used as a scaffold. The scaffolding bolt 95 is a bolt attached to the scaffolding board 92 and used as a scaffold.

[0015] The number of the scaffolding bolts 94 and 95 provided on the scaffolding boards 91 and 92 and the number of the flexible bands 93 can be any number of 2 or more. In this embodiment, as an example, an example is shown in which the scaffolding board 91 is provided with two scaffolding bolts 94-1 and 94-2, and the scaffolding board 92 is provided with two scaffolding bolts 95-1 and 95-2. Also, an example is shown in which the scaffolding boards 91 and 92 are provided with two flexible bands 93-1 and 93-2.

[0016] The large number of scaffolding bolts provided on the scaffolding boards 91 and 92 can reduce the number of times the scaffolding boards 91 and 92 are attached. The number of flexible bands 93-1 and 93-2 is arbitrary, but if there are two, the scaffolding boards 91 and 92 can be fixed to the columnar object.

[0017] Figure 2 shows an example of the scaffolding boards 91 and 92. The scaffolding boards 91 and 92 are plate-shaped jigs having a curved shape along the side surface of the columnar object that function as the jigs of the present disclosure. The scaffolding boards 91 and 92 include screw holes 11 and 21 to which screws that can be used for the scaffolding can be attached, and holding portions for holding the flexible bands 93-1 and 93-2.

[0018] The holding portion can adopt any configuration capable of holding the flexible bands 93-1 and 93-2 on the scaffolding boards 91 and 92. In the present embodiment, an example is shown in which the holding portion is a plurality of through holes 12-1, 12-2, 22-1, and 22-2 arranged in the short direction of the columnar object.

[0019] In the present embodiment, an example is shown in which a plurality of screw holes 11-1 and 11-2 are arranged in the longitudinal direction of the columnar object on the scaffolding board 91, and a plurality of screw holes 21-1 and 21-2 are arranged on the scaffolding board 92. Also, in the longitudinal direction of the columnar object, the flexible bands 93-1 and 93-2 are wound around at positions different from the screw holes 11-1, 11-2, 21-1, and 21-2 and can be fastened.

[0020] The scaffolding board 91 includes screw holes 11-1 and 11-2 at one end in the longitudinal direction and at a position approximately two-thirds of the longitudinal length from the one end toward the other end. The scaffolding bolts 94-1 and 94-2 are attached to the screw holes 11-1 and 11-2. Similarly, the scaffolding board 92 includes screw holes 21-1 and 21-2.

[0021] The scaffold board 91 is provided with through holes 12-1 and 12-2 to which the flexible band 93 is attached. The flexible band 93-1 passes through the through holes 12-1 and 12-2 provided in the scaffold board 91, passes through the through holes 22-1 and 22-2 provided in the scaffold board 92, and encircles the side surface of the columnar object. The same applies to the flexible band 93-2. Note that the number of through holes attached to one scaffold board for one flexible band can be any number of 2 or more.

[0022] The scaffold boards 91 and 92 are combined so that their top and bottom are reversed with respect to each other. That is, when the top and bottom of the scaffold board 92 are reversed, it becomes the configuration of the scaffold board 91. The side surfaces of the columnar object targeted by the scaffold boards 91 and 92 are arranged so as to sandwich them from both sides, and are fixed to the columnar object with two flexible bands attached to both sides of each scaffold board.

[0023] Since the scaffolds are installed every 400 mm to 500 mm horizontally, the distance H between the screw holes 11-1 and 11-2 D can adopt a value of 800 mm or more and 1000 mm or less. For example, the distance H D can be 90 cm, which is easy to raise and lower, and the height can be determined by the number of scaffold bolts.

[0024] Also, the distance H in the height direction between the screw holes 11-1 and 21-2 S is H D / 2. Thus, the scaffold bolts 94 and 95 can be installed every 400 mm to 500 mm horizontally.

[0025] Also, the distance H from the end installed along the longitudinal direction of the columnar object among the scaffold boards E is H S / 2. Therefore, the distance H E is 200 mm or more and 250 mm or less. Thus, as shown in Fig. 4, the distance in the height direction of the scaffold bolts 94-1A and 94-2B can be made H D .

[0026] Fig. 3 shows an example of the construction method of the present disclosure. The construction method of this embodiment includes steps S11 to S13. Fig. 4 is an explanatory diagram for explaining the construction method of constructing a scaffold on the communication pole 81 using the jig of the present disclosure.

[0027] In step S11, two jigs are installed on the side surface of the columnar object. For example, as shown in Fig. 4, scaffold boards 91A and 92A are installed along the communication pole 81, and flexible bands 93-1A and 93-2A are passed through the scaffold boards 91A and 92A.

[0028] Here, the two scaffold boards 91A and 92A have the same shape. And in this step, the two scaffold boards 91A and 92A are installed on the side surface of the columnar object so that the upper and lower parts of the two scaffold boards 91A and 92A are in opposite directions. In this way, in this embodiment, by making the upper and lower parts asymmetric between the scaffold board 91A and the scaffold board 92A, it has a mechanism to make the interval of the scaffold the same as that of the existing column.

[0029] In step S12, a belt-like body is used to fix the two jigs to the side surface of the columnar object. For example, as shown in Fig. 4, the flexible bands 93-1A and 93-2A are tightened to fix the scaffold boards 91A and 92A to the side surface of the communication pole 81.

[0030] In step S13, at least one of the screws in the plurality of screw holes is brought into contact with the side surface of the columnar object. For example, as shown in Fig. 4, scaffold bolts 94-1A, 94-2A, 95-1A, 95-2A are attached to the screw holes 11-1, 11-2, 21-1, 21-2, and the tips of the scaffold bolts 94-1A, 94-2A, 95-1A, 95-2A are brought into contact with the side surface of the communication pole 81.

[0031] Steps S11 to S13 are performed until the required height is reached, and a plurality of scaffold boards 91 and 92 are installed on the communication pole 81. Thereby, each of the scaffold bolts 94-1A, 94-2A, 95-1A, 95-2A, 94-1B, 94-2B, 95-1B, 95-2B provided on the scaffold boards 91A, 92A, 91B, 92B can be attached to the side surface of the columnar object.

[0032] Here, in the present embodiment, in step S11, by winding the flexible bands 93-1A and 93-2A around the ends of the through holes 12 and 22 shown in FIG. 2 respectively, as shown in FIG. 3, the scaffold bolts 94A and 95A can be fixed at equal intervals in the longitudinal direction of the columnar object.

[0033] In addition, since the construction of the flexible band 93 and the scaffold bolts 94 and 95 can be separated, after attaching the scaffold bolts 94 and 95 in advance, the flexible band 93 may be attached. As a result, the on-site step S13 can be omitted, improving the construction efficiency and reducing the construction burden.

[0034] As described above, the scaffold hardware of the present disclosure can realize a lifting mechanism by attaching the flexible band 93 and the scaffold plates 91 and 92 to a columnar object without holes. In addition, by adopting the configuration of the scaffold hardware of the present disclosure, it is possible to easily attach the scaffold hardware to a columnar object with a taper or a columnar object without holes for the scaffold bolts.

[0035] In order to construct the eight scaffolds shown in FIG. 4 using a conventional example such as Patent Document 1, eight bands and eight scaffold bolts had to be constructed simultaneously. On the other hand, in the present embodiment, it is possible to construct eight scaffolds only by attaching four flexible bands 93-1A, 93-2A, 93-1B, and 93-2B.

[0036] In addition, an existing scaffold hardware such as that in Patent Document 1 needs to support a person's weight with one band. For this reason, a flexible band (IBT series) that satisfies the specification of the load-bearing test (using 1.5 kN as the load point 10 cm from the column edge and applying it for 1 minute without abnormalities) is used as the flexible band for the existing scaffold hardware.

[0037] On the one hand, the scaffolding hardware of the present disclosure places the scaffolding boards 91 and 92 along the side surface of the columnar object, and in addition to the flexible bands 93-1 and 93-2, uses the scaffolding bolts 94 and 95 to fix the scaffolding boards 91 and 92. Further, the scaffolding hardware of the present disclosure moves the positions of the scaffolding bolts 94 and 95 away from the centers of the scaffolding boards 91 and 92, and fixes the flexible bands 93-1 and 93-2 at heights different from those of the scaffolding bolts 94 and 95. Therefore, the scaffolding hardware of the present disclosure can support the load applied to the scaffolding bolts 94 and 95 with the rigidity of the scaffolding boards 91 and 92 and the rigidity of the flexible bands 93-1 and 93-2. Furthermore, the scaffolding hardware of the present disclosure functions as reinforcement for the scaffolding bolts 94 and 95 serving as the scaffolding to maintain the mounting positions of the scaffolding boards 91 and 92. Accordingly, the scaffolding hardware of the present disclosure can use lighter and less expensive flexible bands because the load on the flexible bands 93-1 and 93-2 is reduced.

[0038] Also, for the existing scaffolding hardware such as that in Patent Document 1, band attachment was required once for one scaffolding. On the other hand, the scaffolding hardware of the present embodiment can fix the four scaffolding bolts 94 and 95 to the columnar object by fastening the two flexible bands 93-1 and 93-2. Further, by adopting the configuration of the scaffolding hardware of the present disclosure, it is no longer necessary to fix the flexible band 93 and the scaffolding bolts 94 and 95 simultaneously. Therefore, the scaffolding hardware of the present disclosure can construct the scaffolding efficiently. Also, the scaffolding hardware of the present disclosure can reduce the number of the flexible bands 93-1 and 93-2, so that the workability can be improved and the cost can be reduced.

[0039] In the above-described embodiment, an example is shown in which a plurality of flexible bands 93-1 and 93-2 are passed through one through-hole 12-1. However, as shown in FIG. 5, each flexible band 93-1 may be provided with individual through-holes 12-1 and 12-3.

[0040] Also, as shown in FIG. 6, the screw holes 11-1, 11-2, 11-3, 11-4 may be provided in the scaffolding board 91 at the distance H in the height direction. S Thereby, since the scaffolding boards 91 and 92 can be installed completely symmetrically, the procedure S11 becomes easier.

[0041] The construction method of the present disclosure is applicable not only to the communication pole 81 but also to any columnar object such as a tree. Conventionally, those who used to work by stepping on tree branches or the like can now work safely by applying the scaffold hardware of the present disclosure to the tree. In this case, the interval between the scaffold bolts and the number of band-scaffold bolts can be changed according to the height of the tree.

Explanation of Signs

[0042] 11-1, 11-2, 21-1, 21-2: threaded holes 12-1, 12-2, 12-3, 12-4, 22-1, 22-2, 22-3, 22-4: through holes 81: communication pole 91, 92, 91A, 92A, 91B, 92B: scaffold boards 93, 93-1, 93-2, 93-1A, 93-2A, 93-1B, 93-2B: flexible bands 94-1, 94-2, 95-1, 95-2, 94-1A, 94-2A, 95-1A, 95-2A, 94-1B, 94-2B, 95-1B, 95-2B: scaffold bolts

Claims

1. A plate-shaped jig having a curved shape along the side surface of a columnar object, a screw hole to which a screw that can be used as a scaffold can be attached, and a holding portion for holding a belt-like body that goes around the columnar object, comprising: a plurality of the screw holes are arranged in the longitudinal direction of the columnar object, jig.

2. In the longitudinal direction of the columnar object, the belt-like body can go around at a position different from the screw hole, The jig according to claim 1.

3. At least any one of the intervals between the plurality of screw holes is 800 mm or more and 1000 mm or less, The jig according to claim 1.

4. At least one of the plurality of screw holes is such that the distance from the end installed along the longitudinal direction of the columnar object is 200 mm or more and 250 mm or less, The jig according to claim 1.

5. The holding portion is a plurality of through holes arranged in the short direction of the columnar object, The jig according to claim 1.

6. A construction method for constructing a scaffold using the jig according to any one of claims 1 to 5, a procedure for installing two of the jigs on the side surface of the columnar object, a procedure for fixing two of the jigs to the side surface of the columnar object using a belt-like body, a procedure for bringing at least one of the screws of the plurality of screw holes into contact with the side surface of the columnar object, a construction method comprising.

7. The two jigs have the same shape, The two jigs are installed on the side surface of the columnar object so that the upper and lower parts of the two jigs are in opposite directions, The construction method according to claim 6.

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