Fitting jig

Abstract

To provide a fitting jig capable of easily adjusting the positions of a plurality of columns constituting a split column at the time of assembling, capable of excellently fitting the plurality of columns, and capable of improving the safety and working efficiency of a worker.SOLUTION: A fitting jig 100 according to the present invention is a fitting jig 100 used for fitting a split column 10 including a plurality of columns, and includes a bracket 110 that abuts against a lower end of an upper column, a belt 120 that is fixed to the bracket 110 and fastens the bracket 110 to the upper column, and a semi-cylindrical guide 130 that is connected to a lower portion of the bracket 110 and is located below the upper column.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a fitting jig used to fit a split column consisting of multiple columns. [Background technology]

[0002] In recent years, segmented composite columns (hereafter referred to as segmented columns), which consist of a concrete column that serves as a base and a cylindrical steel pipe that is connected to the top of it, have become increasingly popular. The segmented columns require the work of connecting multiple columns, which was not done in the installation of conventional reinforced concrete columns. In the following explanation, whether it is a two-segment column or a three-segment column, the column that has already been erected will be referred to as the "lower column (or lower column)," and the column that will be inserted on top of the lower column will be referred to as the "upper column (or upper column)."

[0003] For example, Patent Document 1 discloses a "divided column erection device for connecting an upper column to a lower column when erecting a divided column comprising an upper column and a lower column." In Patent Document 1, a division assembly device is attached to an already installed lower column, and the upper column is lifted up with a wire and assembled to the lower column.

[0004] In addition, conventionally, the upper pole is lifted by winding up a wire with the winch of a pole erection vehicle or aerial work vehicle, and then assembled to the lower pole. In either case, assembly work at a high altitude is required by workers. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3215144 Summary of the Invention [Problem to be solved by the invention]

[0006] When lifting the upper pillar with a rope and assembling it to the lower pillar as described above, the worker lowers the upper pillar while adjusting its position relative to the lower pillar, and then fits the ends of the upper and lower pillars together. At this time, it is necessary to align the position of the lower opening of the upper pillar with the upper end of the lower pillar. However, the upper pillar is heavy, and it is suspended by a single wire, making quick and precise movements difficult. In addition, it is not possible to simultaneously see the bottom of the upper pillar and the top end of the lower pillar. This makes the task of fitting them together extremely complicated and inefficient.

[0007] The present invention has been developed in consideration of these points, and aims to provide a fitting jig that allows easy position adjustment of the multiple columns that make up a split column when assembling them, enables the multiple columns to be fitted together well, and improves worker safety and work efficiency. [Means for solving the problem]

[0008] In order to solve the above problems, a typical configuration of a fitting jig according to the present invention is a fitting jig used to fit split columns consisting of multiple columns, characterized by comprising a bracket that abuts the lower end of the upper column, a belt fixed to the bracket and fastening the bracket to the upper column, and a semi-cylindrical guide connected to the lower part of the bracket and positioned below the upper column.

[0009] The guide may be a fence made of wire rods.

[0010] Preferably, a coil is attached to the wire.

[0011] Preferably, the guide has a wheel attached to its lower end. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a fitting jig that makes it easy to adjust the position of the multiple columns that make up the split column when assembling them, that can fit the multiple columns together well, and that can improve worker safety and work efficiency. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 10 is a diagram illustrating a work site where split columns are assembled. [Figure 2] FIG. 10 is a diagram illustrating a divided pillar. [Figure 3] 1A and 1B are diagrams illustrating a fitting jig according to an embodiment of the present invention. [Figure 4] 10A and 10B are diagrams illustrating how the fitting jig is attached to the upper column. [Figure 5] 10A and 10B are diagrams showing an example in which the fitting jig is approached in a direction to cover from above. [Figure 6] 10A and 10B are diagrams showing an example in which the fitting jig is approached from below. [Figure 7] 10A and 10B are diagrams illustrating another example of the fitting jig of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0014] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Dimensions, materials, and other specific values ​​shown in the embodiments are merely examples for facilitating understanding of the invention and, unless otherwise specified, do not limit the present invention. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to avoid redundant explanation, and elements not directly related to the present invention are not shown.

[0015] (Split column 10 and work site 20) Figure 1 is a diagram illustrating a work site where a split column 10 is assembled. Figure 2 is a diagram illustrating the split column 10. As shown in Figure 2, the split column 10 is composed of an upper column 12, a lower column 14, and a base column 16. The upper column 12 and the lower column 14 are cylindrical steel pipes, and the base column 16 is a concrete cylinder. The inner surface of the lower end of the upper column 12 and the outer surface of the upper end of the lower column 14 form a joint, and the inner surface of the lower end joint of the upper column 12 and the outer surface of the upper end joint of the lower column 14 form tapered surfaces.

[0016] As shown in Figure 1, this embodiment describes a configuration in which an upper column 12 (upper column) is fitted into a lower column 14 (lower column) which is fitted into a base column 16 (see Figure 2). However, this configuration is merely an example and is not limited to this. For example, the present invention can also be applied to a case in which the lower column 14 is fitted into the base column 16.

[0017] 1, a worker P is riding in the bucket 30 of an aerial work vehicle (not shown in its entirety) and engaging a plurality of divided columns 10. The upper column 12 is lifted up by a wire 32 and a winch 36, and the engaging jig 100 according to this embodiment is attached to the lower part of the upper column 12.

[0018] (Fitting jig 100) Fig. 3 is a diagram illustrating a fitting jig 100 according to this embodiment. The fitting jig shown in Fig. 3 is used to fit a split column 10 consisting of multiple columns (a base column 16, an upper column 12, and a lower column 14). The fitting jig 100 includes a bracket 110, a belt 120, and a guide 130.

[0019] The bracket 110 is a member that abuts against the lower end of the upper pole (the upper pole 12 in this embodiment). A ratchet buckle 112 that holds a belt 120 (lashing belt) is attached to the bracket 110. The belt 120 is wound around the upper pole 12, and a terminal fitting 122 at the tip is hooked onto a hook 124, and the bracket 110 is fastened to the upper pole 12 by winding it up with the ratchet buckle 112.

[0020] The guide 130 is a semi-cylindrical member. The guide 130 is connected to the lower part of the bracket 110 and is disposed so as to protrude downward from the upper pillar (upper pillar 12). The guide 130 of this embodiment is composed of a fence made up of wire rods 132 arranged vertically and horizontally.

[0021] Of the wires 132 that make up the guide 130, the wires that extend in the circumferential direction have coils 140 attached to them. Furthermore, a wheel 150 is attached to the lower end of the guide 130.

[0022] (How to use the fitting jig 100) Fig. 4 is a diagram explaining how to attach the fitting jig 100 to the upper pillar 12, Fig. 5 is a diagram showing an example of approaching the fitting jig 100 in a direction to cover from above, and Fig. 6 is a diagram showing an example of approaching the fitting jig 100 in a direction to hit from below. First, as shown in Fig. 4(a), the upper pillar 12 is placed on a sleeper 40 placed on the ground G and laid on its side. Then, the bracket 110 of the fitting jig 100 is abutted against the lower end of the upper pillar 12. Then, the bracket 110 is fastened to the upper pillar 12 with a belt 120.

[0023] Next, as shown in Figure 4(b), a sling belt 34 (or a sling wire) for connecting to the wire 32 is wound around the middle of the upper pole 12. Then, the wire 32 is wound up by a winch 36 of the aerial work platform, and the upper pole 12 is lifted up.

[0024] At this time, if the upper column 12 is raised to a certain extent, the guide 130 of the fitting jig 100 will drag on the ground G. However, as described above, in the fitting jig 100 of this embodiment, the wheels 150 are attached to the lower end of the guide 130. Therefore, the wheels 150 slide on the ground G, preventing damage to the guide 130.

[0025] In the example of Figure 5, the fitting jig 100 is located above the inclination of the upper column 12, and approaches in a direction to place the guide 130 over the lower column 14. Once the upper column 12 is lifted up until it is positioned above the lower column 14 as shown in Figure 5(a), the upper column 12 is brought close to the lower column 14 so that the guide 130 is positioned to the side of the upper end of the lower column 14. Then, as shown in Figure 5(b), the guide 130 is placed against the upper end of the lower column 14.

[0026] In this case, in the fitting jig 100 of this embodiment, the coil 140 is attached to the wire 132 that constitutes the guide 130. Therefore, the coil 140 can absorb the impact when the guide 130 hits the upper end of the lower column 14 by elastically deforming.

[0027] Once the guide 130 is in contact with the upper end of the lower column 14, the tilted upper column 12 is brought into a vertical position as shown in Figure 5(c). At this time, the distance between the guide 130 and the lower column 14 is increased by the thickness of the coil 140 attached to the wire 132. This roughly corresponds to the thickness of the steel pipe of the upper column 12. Therefore, the edge of the opening at the lower end of the upper column 12 does not rest on the top end of the lower column 14, and the upper column 12 can be inserted smoothly. In other words, the coil 140 can compensate for the thickness of the steel pipe of the upper column 12.

[0028] Once the upper pillar 12 is positioned directly above the lower pillar 14, the upper pillar 12 is lowered downward. As a result, the upper pillar 12 fits into the lower pillar 14, as shown in Figure 5(d). At this time, the coil 140 attached to the wire 132 runs along the wall surface of the lower pillar 14, allowing the upper pillar 12 to fit into the lower pillar 14 smoothly.

[0029] In the example of FIG. 6, the fitting jig 100 is located below the inclination of the upper column 12, and approaches the lower column 14 in a direction that puts the guide 130 in contact with it from below.

[0030] In the case shown in Figure 6(a), after the upper column 12 is lifted, the upper column 12 is brought close to the lower column 14 so that the guide 130 is positioned to the side of the lower column 14. Then, as shown in Figure 6(b), the guide 130 is brought into contact with the upper end of the lower column 14. In this case, too, the coil 140 can absorb the impact when the guide 130 is brought into contact with the upper end of the lower column 14 by elastic deformation.

[0031] Then, as shown in Figure 6(c), the tilted upper column 12 is brought into a vertical position and lowered downward, whereby the upper column 12 is fitted into the lower column 14 as shown in Figure 6(d). In this way, the fitting jig 100 of this embodiment can achieve the same effect whether it is attached to the upper or lower side of the upper column 12.

[0032] As explained above, by attaching 100 of this embodiment to the upper column (upper column 12), it becomes easier to adjust the positions of the multiple columns that make up the split column 10 when assembling them, eliminating the need for complicated work by workers. Therefore, the multiple columns can be fitted together well, and it is possible to improve worker safety and work efficiency.

[0033] Fig. 7 is a diagram illustrating another example of the fitting jig of this embodiment. In the description of the fitting jig 200 illustrated in Fig. 7, the same components as those of the fitting jig 100 shown in Fig. 3 are denoted by the same reference numerals and description thereof will be omitted.

[0034] In the fitting jig 100 shown in Fig. 3, the guide 130 is configured as a fence made up of wire rods 132 arranged vertically and horizontally. In contrast, the guide 230 of the fitting jig 200 shown in Fig. 7 is configured as a plate material curved into a semi-cylindrical shape. Even with this configuration, the same effect as the fitting jig 100 in Fig. 3 can be obtained.

[0035] 3 is a fence made of wire, the positional relationship between the guide 130 and the lower post 14 can be easily seen. Therefore, the guide 130 made of wire is preferable to the guide 230 made of plate material.

[0036] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that such modifications and alterations also fall within the technical scope of the present invention. [Explanation of symbols]

[0037] 10...Divider pillar, 12...Upper pillar, 14...Lower pillar, 16...Base pillar, 20...Work site, 32...Wire, 34...Sling belt, 36...Winch, 40...Sleeper, 100...Fitting jig, 110...Bracket, 112...Ratchet buckle, 120...Belt, 130...Guide, 132...Wire rod, 140...Coil, 150...Wheel, 200...Fitting jig, 230...Guide, G...Ground, P...Worker

Claims

1. A fitting jig used to fit a split column consisting of multiple columns, a bracket abutting the lower end of the upper column; a belt fixed to the bracket and fastening the bracket to the upper column; a semi-cylindrical guide connected to a lower portion of the bracket and positioned below the upper column; A fitting jig comprising:

2. 2. The fitting jig according to claim 1, wherein the guide is a fence made up of wire rods.

3. 3. The fitting jig according to claim 2, wherein a coil is attached to the wire.

4. 3. The fitting jig according to claim 1, wherein a wheel is attached to the lower end of the guide.

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