JP2659170B2 - Pole column ground assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pole column assembling apparatus, and more particularly, to a pole capable of improving work easiness, workability and safety, and capable of being constructed even when an approach road or construction site is narrow. The present invention relates to a pillar-ground assembly device.

[0002]

2. Description of the Related Art In recent years, in order to eliminate the aging of existing 33KV overhead power transmission lines, low ground height, and complaints about branch lines (branch complaints), power transmission poles have been replaced with concrete columns with high ground level.
Replacement with lightweight steel tube columns is being promoted. As a method of erecting a new pillar in the rebuilding work, there are three methods called a deck method, a crane method and a gin pole method.

In the Delecki method, as shown in the schematic diagram of FIG. 14, an old column 100 is reinforced by a branch line 101, a pulley 102 is connected to an upper portion of the old column 100 and an upper portion of a new column 103, and the pulley 102 is extended from a winch 105. The wire 104 is wound around the pulley 102 of the old pillar 100 and the pulley 102 of the new pillar 103 in order.
To the pulley 102 of the vehicle. Then, the lower portion of the new pillar 103 is dropped into the foundation hole, and the wire 104 is wound up by the winch 105, so that the new pillar 103 is raised and set up in the foundation hole.

In the crane method, as shown in the schematic diagram of FIG.
This is a construction method in which 201 is lifted by a mobile crane truck 202 and joined, and the workability and safety are the highest among the three methods. In addition, as shown in the schematic diagram of FIG. 16, in the ginpole method, a columnar underframe 304 is supported on a lower member 306 of a new pillar and reinforced with a branch line 300, and a wire 104 fed from a winch 302 is connected to the underframe 304 by the underframe 304. After winding around a pulley 308 rotatably supported at the upper end and connecting the tip to the upper part of the upper member 301, the upper member 301 is lifted up to the lower member 306 by winding the wire 104 with a winch 302,
Splice.

[0005]

SUMMARY OF THE INVENTION
It is suitable for installation of pole poles, such as wooden poles, which are relatively light and short, about the same as the old pillars 100.However, it is not suitable for installation of pole poles that are high above the ground. There is also the disadvantage that problems are associated with it. Furthermore, in this Delecki method, especially when the old pillar 100 is a wooden pillar, there is a concern that the strength will be reduced due to corrosion, and a high degree of skill in assessing the properties of the old pillar 100 and a high degree of safety considerations are required. .

[0006] The above-mentioned crane system is advantageous in that there is no problem of branch line complaints, but it is necessary to secure an approach path for the crane vehicle 202 to enter, and the crane vehicle 202 cannot enter, for example, in mountains or agricultural lands. There is a disadvantage that it cannot be adopted in places. Further, in this crane method, since the upper members are sequentially added, the connecting work of the members gradually becomes a high place work, and a high degree of safety and advanced considerations are required.

In the above-mentioned gin pole method, a pole pillar on a high ground can be set up even in a place where a crane truck cannot enter, but it is necessary to replace the underframe 304 with the upper member 301 every time the upper member 301 and the lower member 306 are joined. In addition, since the joining work of these members and the replacement work of the underframe 304 rely on human power, work at an unstable high place requires a high degree of skill and a high degree of safety.

A branch anchor 30 for supporting the branch line 300
As the height of the pole post increases, it must be located farther from the pole post installation position, and there is a problem that a large area is required. The present invention has been made in view of the above circumstances, and provides a pole column ground assembling method and an apparatus thereof capable of improving work easiness, workability, and safety, and enabling the work to be performed even when an approach road or a construction site is narrow. It is intended to solve the technical problem of doing so.

[0009]

SUMMARY OF THE INVENTION A pole column assembling apparatus according to the present invention (hereinafter referred to as the apparatus of the present invention) has a disassembled gate-shaped stand erected on the ground and is supported on the stand so as to be able to move up and down. A chuck, a lifting drive for raising and lowering the chuck, a lifting machine for erecting a pole member on the side of the gantry, and a slide table for feeding the pole member erected on the side of the gantry to the vicinity of the gantry. It is characterized by having.

In the apparatus according to the present invention, a gantry foundation mounted on the foundation excavation support for the pole column is provided, and the gantry can be erected on the gantry foundation. Further, in the apparatus of the present invention, a work table for joining the pole members and a work table for attaching the arm bar can be provided at a predetermined height of the mount.

Further, in the present invention, a guide device for guiding the ascending and descending of the chuck can be provided. Furthermore, the configuration of the lifting drive device of the device of the present invention may be configured so that the chuck can be driven up and down, for example, a screw shaft or a screw rod with a vertical axis provided rotatably around the vertical axis. An elevating drive device including a nut which is externally fitted to the screw so as to be able to advance and retreat, and which is fixed to the chuck, and a power device for driving the screw shaft or the screw rod can be considered.

Also, a lifting / lowering drive device having a hydraulic, pneumatic or electric cylinder mounted on the gantry and the chuck, a pair of sprockets rotatably supported on the gantry, and a pair of sprockets wound around the sprockets. An elevating drive unit including a chain fixed to the chuck together with the power unit for driving these chains is also conceivable.

Further, a pulley rotatably supported on the upper portion of the gantry, a pulley rotatably supported on the chuck, a winch, and a reel pulled out from the winch and wound around the pulley of the gantry and the pulley of the chuck in this order. In addition, the above-described lifting / lowering drive device including a wire whose tip is fixed to an upper portion of the gantry may be considered. In addition, in the apparatus of the present invention, it is conceivable that the lifting machine is provided so as to be able to move to the vicinity of the gantry along with the slide base.

[0014]

Since the base of the apparatus of the present invention can be disassembled, it can be easily transported by disassembling it to an appropriate size, and it can be transported to a place where a crane truck is difficult to enter and assembled. it can. In addition, by disassembling the pole post into an appropriate size after installation, the pole post can be easily carried out from the construction site.

Further, according to the apparatus of the present invention, after the stand is erected, the upper pole member is sequentially carried into the stand from the upper pole member and lifted up. It is carried to the lower side, after which the upper pole member is lowered and joined to the lower pole member.
The seam of the upper pole member and the lower pole member is welded after positioning them in the same manner as in the prior art, or flange-joined with bolts and nuts. The apparatus is characterized in that such an operation is performed at a height equal to or lower than the height of the worktable regardless of the pole column assembly height.

That is, the work of joining the pole members is no longer a work at a high place, so that a high level of skill is not required, the work is facilitated, and the work personnel can be easily secured. Also, 1
Work on the pole members of the streaks is more stable than work at height, so workability is also improved, and the degree of safety considerations can be reduced. Furthermore, according to the method and the device of the present invention, after assembling the gantry,
Since it is not necessary to expand the surrounding land according to the increase in the height of the pole as in the case of the ginpole method, it is possible to narrow the leased area, the logging area, and the demolition area.

In the apparatus of the present invention, a gantry foundation is provided on a pole column excavation support, and when the gantry is erected on the gantry foundation, the gantry is stably grounded. As it is supported by, the safety is further improved, and the ground part of the pole pillar is assembled just above the foundation of the pole pillar, so it is possible to join the foundation and the ground part just by lowering the assembled ground part This facilitates the joining of the foundation and the ground part, and enhances its workability and safety.

Further, in the apparatus of the present invention, the work of joining the pole members can be performed by holding the work with a gantry or a pole member. However, the work table for joining the pole members is provided at a predetermined height of the gantry. If provided, the scaffolding of the joining work of the pole members is stabilized, so that this work can be performed more easily, and the workability and safety are enhanced.

By the way, the pole member may be attached with arms such as arms for supporting overhead wires and arms for supporting transformers. These crosspieces may be assembled to the pole members in advance and transported to the construction site.However, in many cases, to facilitate loading, they are disassembled from the pole members and transported to the construction site, and assembled to the pole members on the ground. And is suspended with the pole member.

In the apparatus according to the present invention, it is more preferable that a work table for mounting the arm is provided at a predetermined height of the mount, and the arm is mounted on the pole member on the work table.

In the apparatus of the present invention, it is not essential to guide the elevating and lowering of the chuck supported on the gantry so as to be able to ascend and descend, but when the pole members are joined one after another, the center of gravity of the joined pole members becomes high. If a lateral shake occurs at the time of ascending and descending, the vibration is amplified, and the apparatus and the like may fall. In order to solve this problem, the device of the present invention is provided with a guide device for guiding the lifting and lowering of the chuck, and the guiding action of the guiding device reduces or eliminates vibrations at the time of lifting and lowering of the chuck, thereby improving work safety. Is preferred.

Although the configuration of the lifting drive of the apparatus of the present invention can be considered variously as described above, among these, assembly and disassembly are easy, the storage space at the time of disassembly is small, To facilitate removal from the site, the pulley rotatably supported on the top of the gantry, the pulley rotatably supported on the chuck, the winch, and the winch It is advantageous to use a lifting drive that includes a wire wound around a pulley and a pulley of the chuck in order, the tip of which is fixed to the upper part of the gantry.

Further, the lifting device of the apparatus of the present invention may have only the function of raising the pole part beside the gantry and setting it on the slide base. It is preferable that the lifting device of the hoisting machine is provided so as to be able to move to the vicinity of the gantry along with the slide table in order to prevent the cradle from falling down while being laterally fed.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments, and the present invention is not limited thereto. The present invention, which will become apparent from the entire description, covers a wide range of technical ideas that are truly intended.

FIGS. 1 to 6 are schematic views sequentially showing the procedure of a pole column ground assembly method according to one embodiment of the present invention. In this embodiment, a front view of FIG. 7 and a side view of FIG. The pole column ground assembling apparatus according to an embodiment of the present invention shown in FIG. In this method, as shown in the schematic diagrams of FIGS. 7 and 9, first, the foundation 1 is buried at the installation position of the pole column. A gantry base 4 obtained by bending an H-shaped steel into a ring shape is placed on a foundation digging support 3 used for retaining a digging hole 2 for digging to bury the foundation 1 and disassembled on the gantry foundation 4. A possible portal-type base 5 is erected.

Thus, the gantry 5 is reliably and stably supported on the ground based on the foundation excavation support 3. This pole column ground assembling apparatus includes, besides the gantry base 4 and the gantry 5, a chuck 6 supported on the gantry 5 so as to be able to move up and down, a lifting drive device 7 for raising and lowering the chuck 6, and a lateral side of the gantry 5. Pole members W1 to WN
And a slide table 9 for feeding the pole members W1 to WN erected near the gantry 5.

The gantry base 4, gantry 5, chuck 6, lifting drive 7, lifting machine 8 and slide table 9 are disassembled from each other, and the gantry base 4 and gantry 5 are appropriately sized. It is disassembled, carried into an installation site, assembled, and disassembled after the pole column W is installed, and carried out of the installation site. Accordingly, the approach required for the approach of the crane vehicle 202 could not be secured, and the pole column ground assembling apparatus was carried into an installation site where the pole column W having a high ground height could not be set up without the gin pole method. And can be carried out from the installation site after the pole post W has been installed.

That is, the gantry 4 is composed of an underframe 10, left and right columns 11 erected on both left and right sides thereof, and both columns 11
Top deck 12 that connects the upper ends of the
A work table 13 provided at an intermediate height between the underframe 10, the supporting columns 11, and the top deck 12 during transportation and storage.
And the worktable 13 are disassembled from each other. Each strut 11 is shown in FIG.
As shown in the plan view of FIG.
And a reinforcing material 15 for connecting these,
The reinforcing member 15 and the reinforcing member 15 are configured to be disassembled from each other, and each column member 14 is configured to be disassembled to an appropriate length.

The column material 14 is not particularly limited, but is preferably made of a shape steel in order to reduce manufacturing costs, and in order to facilitate disassembly and assembly, it is preferable to use a circular tube, a square tube, or the like. L-shaped, rather than having a closed cross section,
It is preferable to use a shape steel having an open cross section such as an I-shape or an H-shape. In this embodiment, the column member 14 is made of L-shaped steel, which is the cheapest and lightest, is easy to process such as cutting, and can be extended in the longitudinal direction using a simple backing plate, bolts and nuts. Has formed.

As the reinforcing member 15, a steel bar, a strip steel, a bar steel or the like having a smaller cross section than the column member 14 is used. As shown in FIG. 7, the top deck 12 includes a deck 12a that covers the plane of each column 11, and handrails 12b that are erected before and after the deck. The deck 12a and the handrail 12b can be disassembled from each other. ing. Note that a pole member upper fixing chuck 41 shown in FIG. 13 is installed on the deck 12a.

The work table 13 is provided so as to protrude from the plane of each column 11 to both left and right sides thereof, and a deck 13a protrudes from the plane of each column 11 to the left and right sides thereof.
And handrails 13b standing before and after the deck, and the deck 13a and the handrail 13b can be disassembled from each other. In addition, the above-mentioned gantry 5 builds up these members,
It is reinforced by four branch lines 33 connected to the four corners of the top deck 12 so as to reliably prevent the gantry 5 from falling.

As shown in FIGS. 10 and 11, the chuck 6 comprises a pair of left and right frames 16 and 17, and each of the frames 16 and 17.
And a pole holding plate 19 fixedly supported on one frame 17 toward the other frame 16 and supported on the other frame 16 so as to be able to advance and retreat toward the pole holding plate 19. And a hydraulic jack 21 that is built into the other frame 16 and drives the pole holding plate 20.

The other frame 16 of the one frame 17
Is cut out in a semicircular shape, and a portion of the other frame 16 facing one frame 17 is cut out in a V-shape to avoid interference with the pole holding plate 19. Each pole holding plate 19/20 is frame 16
The frames 16 and 17 are supported by the frames 16 and 17 so as to protrude into the cutouts of 17, and the opposing portions of the pole holding plates 19 and 20 are respectively cut out in an arc shape.

A plurality of types of the pole holding plates 19 and 20 having different cut-out radii are prepared, and are appropriately replaced according to the outer diameters of the pole members W1 to WN to be handled. Guide rails 22 forming front and rear pairs are respectively attached to the surfaces of the columns 11 facing each other, and the guide rollers 18 are inserted into the respective guide rails 22 so as to be able to move up and down while rolling.

A total of eight guide rollers 18 are provided, and four guide rollers 18 are arranged on the frames 16 and 17 separately in upper and lower two stages. They are arranged so as to form a front-rear pair, and are supported by the frames 16 and 17 so as to be rotatable around respective front-rear axes. As described above, by providing the guide device including the guide rail 22 and the guide roller 18, the chuck 6 is stably guided to move up and down, and the chuck 6 and the pole member W1 sandwiched by the chuck 6 are guided.
ＮWN is prevented from laterally swinging when ascending and descending.

The lifting drive 7 for driving the chuck 6 up and down only needs to be configured to drive the chuck 6 up and down. In this embodiment, assembly and disassembly are easy, and a storage space for disassembly is provided. It is small and easy to carry in and out of the construction site.
As shown in a perspective view of FIG. 11, a pulley 23 rotatably supported on the upper portion of the gantry 5, a pulley 24 rotatably supported on the chuck 6, a winch 25, and a winch 25 And a wire 26 whose tip is fixed to the upper part of the gantry 5.

The number of the pulleys 23 of the gantry 5 and the number of the pulleys 24 of the chuck 6 may be one or more for each of the frames 16 and 17 of the chuck 6, but in this embodiment, each of the frames 16 and 17 of the chuck 6 Two pulleys 24 are respectively supported, and three pulleys 23 are arranged above the other frame 16, and two pulleys 23 are arranged above the one frame 17. As shown in FIG. 11, the wire 26 is wound around the wire 26 in order, and the tip of the wire 26 is fixed to the gantry 5 above the other frame 17.

As a result, the frames 16 and 17 can be moved up and down at the same speed, and the tension acting on the wire 26 can be reduced, so that a small-sized and small-capacity winch 25 can be used. In FIG. 11, reference numerals 27 and 28 are wire guide pulleys, respectively. As shown in FIG. 8, the hoisting machine 8 has a rail 29 extending forward from the top deck 12,
A suspending device 30 provided to be able to move forward and backward by using the rail 29 as a guide, and a wire fed from the suspending device 30
31 and a hook 32 connected to the lower end of the wire 1. The upper ends of the pole members W1 to WN laid on the ground are slung and raised, and moved to the front side of the gantry 5 as shown in FIG. The slide table 9 is placed on the slide table 9.

The slide table 9 is mounted on the frame 10 of the gantry 5 so as to be able to move back and forth, and accompanying the movement of the slide table 9 into the gantry 5, the suspension device 30 is moved to the vicinity of the gantry 5. By doing so, the pole members W1 to WN are moved into the gantry 5 without falling over. When the pole members W1 to WN are moved into the gantry 5, the chuck 6 is first raised to the uppermost portion of the gantry 5, the pole member W1 is set on the slide table 9 by the suspension device 30, and After the lower portion is held by the fall prevention device 42 shown in FIG. 12, the slide base 9 is moved so that the pole member W1 comes to the center of the gantry 5, that is, the upper part of the foundation 1. Note that the fall prevention device 42
Is used for each pole size.

Thereafter, the hydraulic jack 21 is actuated by the chuck 6 so that the gap between the two pole holding plates 19 and 20 is larger than the outer diameter of the pole members W1 to WN, and the chuck 6 is covered as shown in FIG. After descending in a proper shape, the pole member W1 is clamped. Thereafter, if necessary, the lifting drive 7
To raise the pole member W1 sandwiched between the chucks 6 to a predetermined height, and as shown in FIG.
Arms A1 and A2 are assembled from 12, and then the elevation drive device 7 is operated to raise the uppermost pole member W1 held by the chuck 6 to the height of the next pole member W2 or more.

Thus, the mounting of the arms A1, A2 can be prevented from being performed on a scaffold at a height of 5 or more, so that ordinary workers who are not used to the altitude can assemble the arms A1, A2. Moreover, from the top deck 12 to the arm bar A1
Since A2 is assembled, the work platform is stable, and the workability, workability, and safety are improved. In addition, since the installation flat area of the gantry 5 can be reduced as compared with the case where the pole member W1 assembled with the crosspieces A1 and A2 is carried into the gantry 5, the lease land area, the logging area, the stepping-in area, and the like can be narrowed. .

While lifting the uppermost pole member W1 to this height, the lifting machine 8 and the slide base 9 are moved forward of the gantry 5, and the next pole member W2 is moved in the same manner as the uppermost pole member W1. And stand on the slide table 9. Then, as shown in FIG. 4, the next pole member W2 is moved into the gantry 5 while standing, and the uppermost pole member W1 is moved.
Then, the lifting drive device 7 is operated in reverse to lower the uppermost ball member W1 to the upper end of the next pole member W2, and the two pole members W are joined. After the connection of the pole member W, the upper portion of the pole member is held by the pole member upper fixed chuck 41 installed on the gantry 5 shown in FIG. 13 before the chuck 6 is separated from the pole member W and the next operation is started.

This joining work is performed by both pole members W1.
Alignment of W2, welding, flange connection by bolts and nuts, and flange connection by rivets are performed. By performing this operation from the worktable 13, the workability of the joining operation is improved. Sex and safety are enhanced. After joining the two pole members W1 and W2 and holding the upper portion of the pole members with the fixed chuck 41, the chuck 6 is lowered to the vicinity of the slide table 9, and the next pole member W2
By holding the lower part of the pair by the chuck 6, and raising the chuck 6 by the lifting / lowering driving device 7, as shown in FIG. 5, the joined pole members W1 and W2 are again higher than the height of the next pole member W3. Upset.

Then, during the lifting, the next pole member W3 is set on the slide base 9, and the next pole member W3 is joined under the previous pole member W2 in the same manner. The height of the gantry 5 may be constant even if the following pole members W2 and below are joined together. Therefore, as the height of the joined pole members increases as in the case of the gin pole method, the anchor point of the branch line 33 is increased. There is no need to be far from the pole, and the lease, logging, and treading will not be expanded.

When such operations are repeated as many times as necessary, FIG.
As shown in the figure, a pole column W in which a number of pole members W1 to WN shorter than the height of the gantry 5 are sequentially spliced up and down is formed, and by joining this to the foundation 1, the installation of the pole column W is completed. become. As described above, the present assembling method uses a combination of the pole members W1 to WN having a length shorter than the height of the gantry.

After the installation is completed, the gantry base 4, the gantry 5,
The chuck 6, the lifting / lowering drive device 7, the lifting machine 8 and the slide table 9 are disassembled and carried out from the pole post installation site.
In the above embodiment, the case where the pole column is newly provided has been described as an example. However, as another embodiment of the present invention, a connection column may be inserted into an existing column to increase the height of the pole column above the ground. In this case, a gantry 5 is installed around the existing pole post, and after the lower end of the pole post is clamped by the chuck 6, the pole post is separated from the foundation 1.

Thereafter, the chuck 6 is raised, a pole member for connection is put upright under the existing pole post, and is joined to the lower end of the existing pole post. After joining the required number of pole members to the lower end of the existing pole member in order,
By joining the bottom pole member to the foundation,
The pole column whose height is raised will be provided at the position of the existing pole column.

[0048]

As described above, according to the present invention, a dismountable portal-type base is erected on the pole column foundation excavation support, and the base is disassembled and transported to the pole installation site. ,
Also, it can be carried out from the pole installation site. Therefore, it becomes possible to install the pole support in a mountain or agricultural land where a crane truck cannot enter, as in the conventional gin pole system.

Further, according to the present invention, the upper pole member is set up and carried into the gantry, and the lower portion of the upper pole member is clamped and lifted by the chuck supported on the gantry so as to be able to move up and down. Since the lower pole member is set up and carried in the gantry, the chuck and the pole member supported by the chuck are lowered to join the upper and lower pole members. Work can be eliminated, work easiness, workability and safety can be improved, and it is easy to secure work personnel,
The labor of the operator can be reduced.

Further, since the pole member is directly lifted by the chuck, the work of replacing the underframe, which is required every time the pole member is added in the gin pole method, becomes unnecessary, and the process time is shortened. In addition, since it is not necessary to move the anchor position of the branch line far from the installation position of the pole post every time the pole member is added, the leased area, logging area, demolition area, etc. can be narrowed, and narrow installation work A pole can be installed on the site.

Further, a base is installed around the existing pole post, the lower end of the existing pole post is supported and lifted by a chuck, and a pole member is inserted below the pole column. The existing pole column can be easily raised by joining to the pole column. Of course, it is also possible to use this gantry as a temporary column separately from the original method of use to replace pole columns by the Derek method.

The apparatus according to the present invention comprises a disassembled gate-shaped stand erected on the ground, a chuck supported on the stand so as to be able to move up and down, an elevating drive device for moving the chuck up and down, and a lateral side of the stand. It is characterized by comprising a lifting machine for erecting a pole member, and a slide table for feeding the pole member erecting on the side of the gantry into the gantry. Therefore, these can be disassembled, and if necessary, the disassembled parts can be further disassembled and transported by dividing them into appropriate sizes. It becomes possible to install pole pillars as in.

Further, since the pole members are directly lifted up by the chuck and joined together, the work of replacing the underframe, which is required every time the pole members are added in the gin pole method, becomes unnecessary, and the process time is shortened. In addition, since it is possible to join pole members and attach arms, etc., at a position lower than the height of the work table of the gantry, it is possible to improve work easiness, workability and safety, and to secure work personnel And the labor of the operator can be reduced.

Further, a base is installed around the existing pole post, the lower end of the existing pole post is supported and lifted by a chuck, and a pole member is inserted below the pole column. The existing pole column can be easily raised by joining the pole column. Of course, it is also possible to use this gantry as a temporary column separately from the original method of use to replace pole columns by the Derek method.

In the apparatus of the present invention, particularly, when a gantry base is provided on a pole excavation support for a pole column, and the gantry is erected on the gantry foundation, the gantry is stable. Because it is well supported on the ground, safety is further improved, and the ground part of the pole pillar is assembled just above the pole pillar foundation, so that the foundation and the ground part are joined just by lowering the assembled ground part And the joining of the foundation and the ground part is facilitated, and its workability and safety are enhanced.

Further, in the apparatus of the present invention, particularly when a work table for splicing the pole members is provided at a predetermined height of the gantry, the scaffold for splicing the pole members is stabilized. Can be done more easily,
Its workability and safety are enhanced. Further, in the apparatus of the present invention, particularly when a work table for mounting a stake is provided at a predetermined height of the pedestal, the stake can be poled on the work table without increasing the installation plane area of the stool. By attaching to the member, the stability of the arm mounting work,
Ease, workability and safety can be improved.

Further, in the present invention, particularly when a guide device for guiding the chuck is provided, the chuck is smoothly moved up and down to suppress the vibration of the chuck and the pole member sandwiched by the chuck. It is possible to prevent the gantry from tipping over due to this vibration, and to further enhance safety. Further, in the device of the present invention, in particular, a pulley rotatably supported on the upper part of the gantry by the lifting drive,
A pulley rotatably supported by the chuck, a winch,
When a wire is pulled out from the winch, wound around the pulley of the gantry and the pulley of the chuck in order, and the tip is fixed to the top of the gantry, assembly and disassembly are easy, and storage space for disassembly is provided. It becomes smaller and easier to carry in and out of the construction site.

In the apparatus of the present invention, particularly, when the lifting device of the lifting machine is provided so as to be movable alongside the slide table from the side of the rack into the rack, the lifting device uses a pole member. The upper part of the pole member can be sent to the vicinity of the gantry at the same speed as the slide table while the upper part of the slide table is hung, and the pole member can be securely prevented from tipping over the slide table, thereby improving workability.

[Brief description of the drawings]

FIG. 1 is a schematic diagram when the uppermost pole member of the present invention is started up.

FIG. 2 is a schematic view of the uppermost pole member of the present invention immediately after being loaded.

FIG. 3 is a schematic diagram when the uppermost pole member of the present invention is lifted.

FIG. 4 is a schematic diagram when the uppermost pole member of the present invention and the next pole member are joined together.

FIG. 5 is a schematic diagram when the uppermost and next pole members joined together according to the present invention are lifted.

FIG. 6 is a schematic view of a completed pole column.

FIG. 7 is a front view of the device of the present invention.

FIG. 8 is a side view of the device of the present invention.

FIG. 9 is a configuration diagram of a gantry base of the apparatus of the present invention.

FIG. 10 is a plan view of a chuck of the device of the present invention.

FIG. 11 is a configuration diagram of a lifting drive device of the present invention.

FIG. 12 is a perspective view of a fall prevention device for replacing a cap according to the size of a pole member according to the present invention.

FIG. 13 is a plan view showing a pole member upper fixing chuck portion installed on the gantry upper part according to the present invention.

FIG. 14 is a schematic diagram of a conventional decking method.

FIG. 15 is a schematic view of a conventional crane system.

FIG. 16 is a schematic diagram of a conventional ginpole method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Foundation 3 ... Foundation excavation support 4 ... Stand foundation 5 ... Stand 6 ... Chuck 7 ... Lifting drive 8 ... Lifting machine 9 ... Slide table 12 ... Top deck 13 ... Work table 18 ... Guide roller 22 ... Guide rail 23 , 24… pulley 25… winch 26… wire

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshihiko Kawachi 10 Kansai Electric Power Company, Kyoto Electric Power Company, Inc. Inside Maizuru Electric Power Co., Inc. (72) Inventor Satoshi Yoshimura 10 Nishikujo Zaocho, Minami-ku, Kyoto City Inside Kanden Kogyo Co., Ltd.

Claims (1)

(57) [Claims] 1. A disassemblable portal-type base erected on the ground, a chuck supported on the base so as to be able to move up and down, a lifting drive device for raising and lowering the chuck, and a pole member on a side of the base. Equipped with a lifting machine for erecting, and a slide base that feeds the pole member set up on the side of the gantry into the gantry,
A gantry foundation to be mounted on the foundation excavation support of the pole column is provided, and the gantry is erected on the gantry foundation, and a work table for joining the pole members is provided at a predetermined height of the gantry. A pulley provided with a work table for attaching a brace at a predetermined height of the gantry, a guide device for guiding the lifting and lowering of the chuck, and the lifting drive device rotatably supported on an upper portion of the gantry; And a pulley rotatably supported by the chuck, a winch, and a wire which is fed out of the winch, is sequentially wound around the pulley of the gantry and the pulley of the chuck, and has a tip fixed to the upper portion of the gantry, A pole column assembling apparatus, wherein the lifting device of the hoisting machine is provided so as to be able to move along with the slide table to a position near the mount.