JPH0757049B2 - Electric wire protective scaffolding and installation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention mistakenly drops an electric wire on a building or a road that intersects with an electric wire when rebuilding a transmission line erection tower or replacing electric wires. Even so, it relates to the protective scaffold installed in order to catch it and prevent accidents.

[Conventional technology]

Conventional scaffolds of this type are generally assembled from logs or single pipes in the shape of a tower.

[Problems to be Solved by the Invention]

The work of assembling a log or a single pipe into a tower requires a lot of time, and it takes time to dismantle it.

The present invention facilitates not only the assembly operation but also the disassembly operation,
It is to provide for the purpose of being able to establish reliably regardless of whether the location is a swamp or a paved surface.

[Means for Solving the Problems]

A solution according to the present invention is a unit length in which a plurality of steel materials are connected to a plurality of base plates fixed to the surface of the earth by a plurality of cloth frames at intervals in the longitudinal direction, and connecting portions are provided at upper and lower ends. A plurality of iron pillars formed in a box-shaped column are sequentially bolted together in the height direction to stand up, and the iron poles standing up on the adjacent base plates are connected to each other with a single pipe, and are placed horizontally on top of each iron pillar. The point is to provide a frame.

Furthermore, the installation method is to fix the base plate at the installation position, then lie down on the iron pillar that connects the several iron pillars,
After connecting one side of the connecting part at the lower end to the base plate with a bolt so that it can swing up and down, the iron pillar is erected and each steel material is bolted to the base plate, and a pulley is hung on the upper end of the erected iron pillar. Repeat the process of attaching the lowered rods, pulling up the iron columns stacked in the upper stage by the pulleys and connecting them to the lower iron columns by bolts, and while successively standing up the iron columns, horizontally adjacent iron columns are connected to each other with a single pipe. The point is to install a horizontal bridge on the upper part of the upper iron pillar.

[Action]

As described above, since a plurality of iron pillars are sequentially bolted and connected to each other in the height direction on the base plate to stand up, assembly and dismantling operations are easy and processing can be performed in a short time.

Further, in the method, since the iron pillar is formed by connecting a plurality of steel materials with a plurality of cloth frames at intervals in the longitudinal direction to form a box-shaped pillar having a unit length, each cloth frame is a ladder. It is possible to easily and safely climb up and down onto an upright steel pillar that serves as a horizontal rail, and work on the steel pillar can be performed safely.

〔Example〕

To explain the present invention in detail, the members to be used are a base plate 1 shown in FIG. 3, a pile 2 shown in FIG. 4, an iron pillar 3 shown in FIG. 5, an elevator 4 shown in FIG. The wire stopper 5 shown is a single tube 6, a wire 7, and the like.

The base plate 1 is formed of a hollow material in the shape of a perforated plate, and has an angled shape in the central portion of at least 2
Brackets 9 and 9 with individual through holes 8 and 8 are provided,
Further, a plurality of holes 10 through which the piles 2 are inserted are provided between the hollow shape members which form the perforations. Therefore, when installing in a muddy place, the base plate 1 is installed in a predetermined position so as to be kept horizontal, and the piles 2 are passed through the holes 10 to be fixed to the ground. If the installation position is an asphalt surface or a concrete surface, a weight such as a concrete block is placed and fixed on the base plate 1.

The iron pillar 3 is made by welding a steel material 12 of a predetermined length made of a square pipe to each corner of a base frame 11 formed of an angle section, and standing it up, and a cloth frame 13 (shown in the figure) at equal intervals in the height direction. The steel materials 12 are connected to each other in a box-shaped columnar shape having a quadrangular cross section at three places, and an upper frame 14 is welded to the upper end. One of the upper frame 14 and the base frame 11 forms a frame. The connecting portions 15 and 16 are provided by extending both facing pieces, and through holes 17 and 18 are opened in the connecting portions 15 and 16, respectively. Further, a through hole 19 is formed in the center of each piece of the upper frame 14. The iron columns 3 formed to have the unit length are sequentially laid on the base plate 1 in the height direction to stand up. In addition, the height of the iron pillar 3 of the embodiment is 2 m. This length is convenient for handling and is not necessarily limited.

The elevator 4 is used in a state of being attached to the lower iron column 3 and projecting upwardly when stacking and disassembling the respective iron columns 3, and is used by bending the bending portion 21 at the upper end of the rod body 20. 22 is hung, and the pulley 23 is hung on this, and the means for attaching the rod body 20 to the iron pillar 3 is as follows. A pair of locking pieces 24, 24 made of angled members that are hooked from the outside on each side are fixed to the upper and lower parts of the standing member 25 also made of angled members by welding, and the rod 20 is inserted in the upper and lower parts of the standing member 25. The fixing pieces 2 that fix the sockets 27, 27 that are fixed by the screws 26, 26, and that are joined to the iron pillar 3 by the angle-shaped members at both ends of the upper and lower locking pieces 24, 24, respectively.
8,28 are projected.

Further, the socket 31 is inserted into the rod body 20 and the upper frame 14 of the iron pillar 3 is inserted.
A clamp 29 is attached to one side of the clamp 29. The clamp 29 has a U-shaped portion 30 with the open mouth facing upward and has a cylindrical portion on one side thereof.
31 is fixed and screw rod 32 is screwed to the other side.
Insert the U-shaped part 30 from below into one side and screw the rod 32 into the upper frame 14
It is attached by penetrating through the through hole 19 provided on one side.

The wire clasp 5 is attached to the steel material 12 of the iron pillar 3 and is tied to the wire 7 as a reserve. Tighten each end of the pair of support pieces 34, 35 opened and closed by the hinge 33 with the bolt 36 and the nut 37. A projecting piece 38 with a hole is integrally provided on one of the supporting pieces 34.

The pile 2 is formed by a square pipe, the tip is not thinned in a wedge shape, the upper opening is closed, and the through hole 39 is opened in the upper side surface. (Omitted)
It is something that is extracted in.

To assemble a scaffold using the above-mentioned members, if the installation site is a swamp, lay the base plate 1 horizontally and stably as shown in FIG. 8, and pass the piles 2 through the holes 10 at least at the four corners. The base plate 1 is fixed by driving. However, the position to assemble is not necessarily a swamp, and in a place where the pile 2 cannot be driven like asphalt pavement, a weight such as a concrete block is placed and fixed on the base plate 1. So, with the three iron pillars 3 lying on the ground, they are spliced one after another with bolts,
Square clamp 40 for fixing the wire stopper 5 with the wire 7 attached to the upper end of the uppermost steel pillar and the horizontal connecting single pipe 6.
Attach (commercially available normal one). Therefore, the two connecting parts 15,1 on one side of the base frame 11 of the lowermost iron pillar 3
While 5 is lying down, it is connected to the brackets 9 and 9 of the base plate 1 with bolts, but the iron column is attached so that it can rotate around the bolt, and the iron column is raised up there, and then the other side of the base frame Base plate 1 with both connecting parts
Connect it to the brackets 9 and 9 with bolts and tighten the previously installed bolts.

Then, as shown in FIG. 9, the wire 7 is moored to the anchor 41 which is tensioned and driven into the ground, and it is erected while standing upright, and then the worker puts the cloth frame 13 on the iron pillar 3 and steps on the ladder. As a result, the upper portions of the adjacent steel columns that are adjacent to each other are connected by a single pipe 6 to prevent the iron columns from being twisted.

Then, as shown in FIG. 10, the elevator 4 is attached to the uppermost iron column, the pulley 23 of the elevator 4 pulls up the iron column 3 to be connected next, and stands up on the uppermost iron column. 3 is fixed to the uppermost iron pillar by bolting. Repeat the above steps to stand up to the required height,
Finally, as shown in FIG. 1 and FIG. 2, the protective scaffold is installed by assembling the horizontal portion 42 by the single pipe 6 on the upper portion of each iron pillar.

〔The invention's effect〕

The electric wire protective scaffold according to the present invention, a plurality of iron pillars formed in a box-shaped unit length on the base plate are stacked and erected by stacking by bolting in the height direction, and each iron pillar erected in parallel is connected by a single pipe, A horizontal bridge is provided in the upper part between the iron pillars, and the iron pillars are connected by bolts, so the assembly and dismantling operations are easy.Compared to the conventional single pipe and logs. The assembly and dismantling time is greatly shortened. Further, since it is provided on the base plate, there is no need to excavate, there is no need to fill in holes after dismantling, and it is possible to immediately return to the original state. In addition, since the iron pillar is formed by connecting several steel materials in a ladder shape with a cloth frame, it is lightweight and easy to transport, and a ladder is not needed when the worker moves up and down, so it is safe. It can be raised and lowered.

In addition, the method of installing the protective scaffold according to the present invention is a method in which an iron pillar is laid sideways and rotatably connected to a base plate through a connecting portion provided on the iron pillar, and then the lying iron pillar is erected on the base plate, and the erected iron pillar Similarly, since the iron pillars are pulled up to stand up, it is easy to stand up the iron pillars, and since the iron pillars are stacked in the height direction while connecting the parallel steel pillars with a single pipe, each iron pillar is twisted or isolated. You can safely perform the work of climbing on an iron pole without falling down.

[Brief description of drawings]

FIG. 1 is a front view showing a protective scaffold for electric wires according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a perspective view of a base plate, FIG. 4 is a perspective view of a pile, and FIG. , Sixth
FIG. 7 is a perspective view of a lift, FIG. 7 is a perspective view of a wire clasp, and FIGS. 8, 9, and 10 are front views showing a scaffold assembly process. 1 ... Base plate, 2 ... Pile, 3 ... Steel pillar, 4 ...
Elevator, 6 ... Single pipe, 7 ... Wire, 9 ... Bracket, 10 ... Drilling hole, 12 ... Steel material, 13 ... Cloth frame, 15,16 ...
… Connection part, 23 …… Pulley, 42 …… Horizontal part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Meido 3-3-22 Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture Kansai Electric Power Co., Inc. Takata Denki Co., Ltd. (72) Inventor Takami Takada 247 Takauchi, Osawano-cho, Kamishinagawa-gun, Toyama Prefecture Takada Denki Co., Ltd. (72) Inventor Hikoichi Yamai 2508 Takagi, Toyama City, Toyama Pref. Kogyo Co., Ltd. (72) Inventor Makio Kawai 2508 Takagi, Toyama City, Toyama Prefecture Hokuriku Steel Tower Co., Ltd.

Claims (2)

[Claims] 1. A plurality of steel materials (12) are connected on a plurality of base plates (1) fixed to the surface of the earth with a plurality of cloth frames (13) at intervals in the longitudinal direction, and the upper and lower ends are connected to each other. A plurality of unit-shaped box-shaped columnar iron columns (3) provided with connecting portions (15, 16) are bolted to each other in the height direction in order to stand up, and on each adjacent base plate (1). The steel columns (3) standing upright are connected to each other by a single pipe (6),
A protective scaffold for electric wires, characterized in that a horizontal pipe (42) is provided as a single pipe on the top of each steel pole (3). 2. A base plate (1) is fixed to an installation position, and then a plurality of steel materials (12) are connected by a plurality of cloth frames (13) at intervals in the longitudinal direction, and connecting portions (upper and lower ends are connected to each other). 15,16)
One side part of the connecting part (15) which is provided at the lowermost end of the connected iron columns (3) with a plurality of iron columns (3) formed in the shape of a box having a unit length Is connected to the base plate (1) with a bolt so that the iron pillar (3) is erected, and the lower end connecting portion (15) is bolted to the base plate (1) so that the erected iron pillar (3). Attach the rod (20) with the pulley (23) suspended at the upper end of the, and pull up the iron pillar (3) to be loaded on the upper stage by the pulley (23) and connect it to the lower iron pillar (3) by bolts, and repeat the process. While vertically standing the iron pillar (3), horizontally adjacent iron pillars (3) are connected to each other by a single pipe (6), and a horizontal pipe part (42) is attached to the upper part of the uppermost iron pillar (3) by a single pipe. Installation method of protective scaffold for electric wires