JPS6393960A - Working apparatus of conical shape construction - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is a working device for performing work at heights and demolition work on cone-shaped structures with tapered tips such as utility poles, concrete poles, chimneys, etc. It is related to.

(Prior art and its problems) The main conventional method for dismantling cone-shaped structures such as telephone poles and chimneys is to first cut down the lower part of the target structure like when cutting down a tree. This method has disadvantages, such as requiring a site that is as wide as the length of the top of the tree that will fall, and that it is dangerous because the direction in which it will fall cannot be determined very precisely.

Another method is to assemble scaffolding materials such as logs or single pipes from below around the target structure, and then build materials around it.
There is a method of enclosing tools, debris, etc. with a sheet to prevent them from falling, and disassembling the broken debris by lowering it down from the top through a duct chute, but this method involves assembling scaffolding materials and removing dismantled single pipes. Since the work has to be done, there are disadvantages such as the danger of scaffolding materials falling, and the labor involved in assembling and disassembling them is extremely difficult.

Furthermore, there is a method of using a tower vehicle to go to the vicinity of the target structure and work, but it requires a site where the tower vehicle can fit, the work area is limited in terms of height and work surface, and it requires effort. There were drawbacks such as not being able to.

Although methods have been adopted in which the above-mentioned techniques are used in combination, the above-mentioned drawbacks have not been solved.11゜(Means for solving the problems) The present invention solves the above-mentioned drawbacks Utilizing the structure of structures such as telephone poles and chimneys that gradually become thicker from the top to the bottom, the inner surface of the frame-shaped workbench is tightened to the outer surface of the structure to prevent accidental work of the workbench. It is designed to allow work such as dismantling a structure from the top down while preventing it from descending.

The present invention will be described in detail with reference to the illustrated embodiment: a pair of support frames 1.1, an operating mechanism 2.2..., and a tightening rod 3.3 pressed against the side surface of the structure 4 by the operating mechanism 2.・・・
The support frame 1.1 has an enclosure part 5 that fits into the side surface of a cone-shaped structure 4 that is tapered from the bottom to the top, such as a chimney. The opposing surface 6.6 can be freely connected, and the operating mechanism 2.2.
. . . are helical shafts 7.7 supported above and below the outside of the enclosure 5 of the support frame 1.1, reducers 8.8 linked to these helical shafts 7.7, and these reducers 8.8. The helical shaft 7.7 is provided with reverse threads on the left and right sides, and a female thread body 10.10 is screwed into each thread part. By operating the helical shaft 7.
7 rotates to move the female screw body 10.10 left and right. A handle 9.9 projects from the upper surface of a workbench 13, which will be described later.

The tightening rods 3.3... are removably fixed to the mounting portions 11.11 of the corresponding female screw bodies 10.10.
As 110 moves laterally, it is adjusted to move laterally and press against the side of the construct 4.

In the figure, reference numeral 12.12 denotes a guide roller which is supported by a shaft between the support frames 1.1 with the inner sides facing each other protruding upward and downward after the support frames 1.1 are connected. It rolls on the outer surface of the structure 4 when it is pulled up.

13 is a workbench assembled on the upper part after connecting the support frame 1.1, 14.14 is a hook bolt for hanging, and 15 is a sliding bolt applied to the inner surface of the tightening rod 3.3... A stop plate is interposed between the tightening rod 3 and the structure 4.

Reference numeral 16 denotes a lifting device, which has pulleys 17 and 17 installed at the top and bottom of the structure 4, and a wire 18 suspended from the pulleys 17 and 17.
It consists of a pulling winch 19 and is used to lift the device of the present invention to the top of the target structure 4.

In addition, when the circumference of the target structure 4 is circular, it is preferable to curve the tightening rods 3, 3, etc., or to interpose a curved member. Further, the tightening rod 3 may be moved and adjusted using a hydraulic machine end or the like as the operating mechanism 2.2.

(Function) The present invention is realized as described above, and as a construction procedure, first, the pulley 17 is attached to the top of the structure 4 using existing step bolts, etc., and the step attached to the surface of the structure 4 is installed. After removing bolts etc., support frame 1.1
are fitted from both sides of the structure 4 to connect the opposing surfaces 6.6, and after installing the guide rollers 12.12, the workbench 13
Assemble.

The support frame 1.1 and workbench 13 assembled by fixing one end of the wire 18 to the hook bolt 14 and pulling the other end of the wire 18 with the winch 19 tilt slightly;
The guide rollers 12.12 are lifted while rolling on the surface of the structure, and during this lifting process, the workbench 1
Attach step 3 by adding a work ladder (not shown). After raising the workbench 13, support frame 1.1, etc., rotate the operating handle 9 to move the female screw body 10 to a position on the side of the structure 4, and attach the tightening rods 3.3 to the mounting part 11. , the anti-slip plate 15 is in contact with the inside of the tightening rod 3.3, and while operating the operating handle 9.9, tighten the tightening rod 3.3.
... to the surface of the construct 4 while keeping the support frame 1.1 horizontal. After tightening horizontally, the lifting device @ 16 is removed and a dust chute (not shown) is attached to carry out dismantling work, and work is carried out by lowering the work platform 13 one by one while operating the operating handle 9.

During the work, the band 21 for attaching the life W420 is fixed to the structure 4 located above the workbench 13, and the band 21
and the workbench 13 are connected by a lifeline 20 to ensure safety.

(Effects) As mentioned above, the present invention consists of a pair of support frames, a tightening rod, and an operation mechanism for operating the tightening rods, and the support frames have an enclosure that fits into the cone-shaped structure and are located opposite each other. The surfaces can be connected freely, and the clamping rod is arranged to protrude and adjust freely inside the enclosure so that it can be pressed against the conical structure, so it is easy to place the clamping rod in high places during demolition work such as chimneys. It can be installed horizontally while being adjusted, and since the cone-shaped structure gets thicker toward the bottom, the tightening rod does not spread out, so it is safe and will not fall accidentally. By gradually widening the clamping rods, the support frame etc. will naturally lower due to its own weight, and by simply adjusting the clamping rods by operating the operating mechanism, the workbench can be set horizontally, allowing you to proceed with the next work. can be easily prepared.

Furthermore, when lifting this device to a high place, it can be lifted using simple lifting devices such as pulleys, winches, and wires, so work can be done in narrow spaces, and there is no need to assemble scaffolding, etc., so the work can be done quickly. It is safe because there is no risk of falling parts, etc.

[Brief explanation of the drawing]

FIG. 1 is a front explanatory view of a working device according to the present invention in a raised state, FIG. 2 is an explanatory plan view of the device of the present invention, and FIG. 3 is an explanatory side view of the same. 1 is the support frame 2 is the operating mechanism 3 is the tightening rod 4 is the pyramid-shaped horizontal structure 5 is the enclosure portion 6 is the opposing surface 7 is the spiral shaft 9 is the operating handle 10 is the female screw group 13 is the workbench Figure 2

Claims (1)

[Claims] Consisting of a pair of support frames, a tightening rod, and an operating mechanism for operating the tightening rods, the support frames have an enclosure that fits into the cone-shaped structure, and their opposing surfaces can be connected freely, A working device for a cone-shaped structure, in which the tightening rod is arranged to protrude and adjust freely inside the enclosure and can be freely pressed against the cone-shaped structure.