JPS621314Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for cutting and removing branch wire rods of utility poles below the ground surface.

As shown in Figure 15, the branch line of a utility pole is called a branch rod, which has an upper part b between the utility pole a and the above-ground part, and the lower part goes underground through this upper part b and thimble c, and a branch line block e is attached to the lower end. The lower part d is longer.

Some or all of the overhead lines are no longer needed,
If the route of the overhead line is changed, the utility poles and the branch wires that support them will no longer be needed and will need to be removed. The conventional method for removing such a branch line is to remove the branch line block e as well. Therefore, the ground had to be excavated over a wide area and to a great depth, and it took a lot of labor and time to remove the excavation work and to fill in the wide and deep holes left in the ground after the removal. Particularly when a branch line is buried under a paved road, it is necessary to remove a large area of pavement, and the area required to backfill and resurface the holes after removal is large, resulting in additional labor, time and effort. It cost a lot of money.

In view of the above points, the present invention cuts the branch rod at the required depth underground by only slightly excavating the area where the branch line penetrates, and then extends the branch rod and branch block below the cut point underground. By removing the upper branch wire rod from the cut point, the labor, time, and cost of removing the branch wire and backfilling the hole in the ground are significantly reduced, and work efficiency is improved. The present invention provides a branch line rod cutting and removing device, which will be described in detail below with reference to the drawings.

Figures 1 to 13 show embodiments of the present invention, and Figures 1 and 2 show how the main cylinder 1 is attached to the lower end and driven into the ground as shown in the explanatory view of the usage state in Figure 14. The adapter 2 shown in FIG. is the branch wire rod hole insertion 9 through which the branch wire rod d is inserted.
is provided. Reference numeral 10 indicates an earth pressure buffer groove, and reference numeral 11 indicates several screw holes provided in the male threaded portion 8. As shown in FIG. 14, the end surface on the side of the male threaded portion 8 is formed with a striking surface 12 that receives a blow from the striking surface of the lower end of the driving rod 4 inserted into the main cylinder 1 to which the adapter 2 is attached.

3 and 4 show the main cylinder 1, and a female threaded portion 13 is provided on the inner periphery of one end into which the male threaded portion 8 of the adapter 2 is screwed. Matching screw hole 14
is provided, and the adapter 2 is firmly fixed to the main barrel 1 by screwing and mounting the adapter 2, and further screwing screws from each screw hole 14 into the screw hole 11 of the adapter 2.
A female thread 15 is provided on the inner periphery of the other end of the main cylinder 1, into which one end of an auxiliary cylinder 6 (to be described later) is screwed, and an axial guide rail 16 is provided on the opposing inner periphery of the main cylinder 1. A stopper 17 is provided at the end of the guide rail 16 on the female threaded portion 13 side. This guide rail 16 serves as a guide when a cutting tool 5, which will be described later, is inserted into the interior to cut the branch rod d. The connecting body in which the adapter 2 is attached to the main cylinder 1 has a scale and numbers attached to the outer periphery of the main cylinder 1 from the tip of the adapter 2 to determine the depth of penetration into the ground (not shown). .

5 and 6 show the driving rod 4, 18 is a striking head, 19 is a branch rod insertion hole, and 20 is a cylindrical grip welded to the head 18 so that the branch rod can be inserted therein. It is. As shown in FIG. 14, this driving rod 4 is inserted into the main cylinder 1 of the connecting body of the main cylinder 1 and the adapter 2, and
A blow is applied to the impact receiving surface 12 of the adapter 2 with the tip of the adapter 2, thereby embedding the lower end of the connected body of the adapter 2 and the main cylinder 1 into the ground.

7 and 8 show the auxiliary tube 6, in which the connected body of the adapter 2 and the main tube 1 is driven into the ground to a required depth, and is cut into the ground by a cutting tool 5, which will be described later. After cutting the branch rod d at
It is screwed onto the upper end of the adapter and used when pulling out the connection between the main barrel 1 and the adapter 2. A male threaded portion 21 screwed into the female threaded portion 15 of the main cylinder 1 is provided on the outer periphery of one end of the auxiliary cylinder 6, and two removal protrusions 6' are provided in parallel on the outer periphery of the other end.

Figures 9 and 10 show the main cylinder 1 and the auxiliary cylinder 6.
The holder 3 is used to hold the main cylinder 1 during transportation and also to support the main cylinder 1 tilted during use as shown in FIG. Rollers provided on both sides of the rear, 2
4 is a pin, and this pin 24 is attached to the pin support plate 2 which is provided upright from the bottom plate on both sides of the support frame 22.
It is supported by 5. 26 is a cylinder inserted into the pin 24 and provided with projections at both ends;
A U-shaped fulcrum fitting 28 at the lower apex of the diamond-shaped jack 27 is welded and fixed to the holder. A U-shaped fulcrum metal fitting 29 at the upper apex of the diamond-shaped jack 27 is welded and fixed to a hinge 31 attached to the lower part of the main cylinder accommodating table 30. The rhombus jack 27 opens and closes the rhombus piece by turning the threaded rod 32 and the handle 3. The main cylinder storage stand 30 has a gutter shape, and a hinge 34 is attached between one end thereof and the front plate of the support frame 22 to form a fulcrum when rotating, and the diamond-shaped jack 27 can be opened. As shown in FIG. 14, the main cylinder 1 is supported during use. Attachment hooks 36 for tying strings 35 are provided on both front and rear edges of the main cylinder accommodating base 30. 3
Reference numeral 7 denotes a main cylinder storage stand 30 which is supported and fixed on one side of the abutment frame 22 by a support plate protruding from the frame 22.
This is a storage stand for the auxiliary tube 6 arranged in parallel with the auxiliary tube 6, and hooks 39 for attaching a tie string 38 are provided on both side edges.

Figures 11 to 13 show a cutting tool for cutting the branch rod d underground, and as shown in Figure 14, the lower end of the main tube 1 and the adapter 2 were driven into the ground to the required depth. After that, the driving rod 4 is pulled out from inside the main cylinder 1, and then inserted into the main cylinder 1 to cut the branch rod d. 40 is a semi-cylindrical milling support frame with thick walls on both sides, 41 is a guide rail receiving groove provided on both sides of the frame 40, and this groove 41 is a guide rail 16 protruding from the inner circumference of the main cylinder 1.
Sliding fit. 42 is a guide rod whose both ends are supported on both sides of the frame 40; 43 is a screw rod whose both ends are similarly supported so as to be rotatable on both sides of the frame 40;
44 is an arm that fits into a hole provided at the bottom of the guide rod 42 so that it can move while being guided by the guide rod 42; 45 is an arm adjacent to the arm 44 so that it is on the same line as the plate surface; An arm that has a screw hole into which it is screwed and moves in the axial direction of the screw rod 43 as the screw rod 43 rotates; 46 is a cylinder with the arms 44 and 45 protruding from the bottom; 47 is inserted into the cylinder 46; A milling cutter support shaft 47 is held so as to be rotatable, and one end of this milling cutter support shaft 47 is provided with a threaded portion, into which a milling cutter 49 serving as a cutting blade is inserted through a washer 48 and fixed with a nut 50. The other side of the milling cutter support shaft 47 passes through a washer 51, a cylinder 52, and a washer 53, and is inserted and welded to one end of a connecting tube 54. One end of a rotary shaft 55 is inserted into the other end of the connecting tube 54 and connected with a connecting screw 56 . An electric drill attachment end 57 is formed at the other end of the rotating shaft 55. A flexible shaft is formed between the electric drill mounting end 57 side end of the rotating shaft 55 and the connecting end on the connecting tube 54 side.
Reference numeral 58 is a U-shaped milling cutter moving rod support fitting, the bottom piece of which is fixed to the frame 40, and milling cutter moving rods 59 are inserted and supported through holes provided in both sides thereof. A rotation knob 60 is provided at one end of this milling moving rod, and a bevel gear 61 is inserted into the other end and fixed with a pin. This bevel gear 61 is inserted into one end of the threaded rod 43 and meshes with a bevel gear 62 fixed with a pin, and by turning the knob 60, the threaded rod 43 is rotated via the bevel gears 61 and 62, and the threaded rod 43 is integrated. The arms 45, 44, cylinder 46, milling cutter support shaft 47, and milling cutter 49 are moved in the axial direction of the threaded rod 43.

Next, to explain how to use the device of the present invention, first, as shown in Fig. 15, the ground where the branch rod d is inserted into the ground is slightly dug, and the branch rod d is connected to the thimble c using an appropriate tool. Cut it right at the bottom. After that or in advance, attach adapter 2 to main cylinder 1.
Screw it in and fix it firmly with the screws screwed through the screw holes 14 and 11, and insert the connected body of the main tube 1 and the adapter 2 so as to match the angle of the support rod d. When the tip of the adapter 2 reaches the hole dug in the ground, turn the handle 33 of the jack 27 of the holder 5 held near the main barrel 1 to open the diamond-shaped jack 27 and remove the main barrel. The housing table 30 is tilted and adjusted to the same angle as the angle formed by the connecting body of the main cylinder 1 and the adapter 2 with the ground surface, and the main cylinder housing table 30 is supported in close contact with this connecting body. Next, the driving rod 4 is inserted into the main cylinder 1 by passing the branch rod d through the branch rod insertion hole 19 of the head 18 with the striking head 18 facing down. Next, while holding the upper end of the branch rod d, pull up the driving rod 4 by holding its grip 20 and lower it down along the branch rod d, so that the tip of the striking head 18 is attached to the base end of the adapter 2. It is made to collide with the impact receiving surface 12. The impact at that time drives the tip of the adapter 2 into the ground. By repeating this operation, the adapter 2 is gradually driven deeper into the ground. Once the connected body of main barrel 1 and adapter 2 becomes able to stand on its own during this process, remove the holder 3 to make the driving operation easier, and read the scale and numbers attached to adapter 2 and main barrel 1. When the connecting body is driven to the required depth, the driving rod 4 is pulled out, and the cutting tool 5 is inserted into the main cylinder 1 while the milling cutter 49 is moved to one side instead. At that time, the guide rail receiving grooves 41 on both sides of the frame 40 are connected to the guide rails 1 on both sides of the main cylinder 1.
6 and insert it until one end of the frame 40 comes into contact with the stopper 17. At that time, the milling cutter 49 is located close to the impact receiving surface 12 of the adapter 2, and the electric drill mounting end 5 of the rotary shaft 55
7. The knob 60 of the milling cutter moving rod 59 is protruded from the top of the main barrel 1. Next, the electric drill attachment end 57 is attached to the electric drill. At this time, the branch rod d is placed in the center of the main cylinder 1, and the milling cutter 49 is rotated. While supporting the branch line rod d with your hand, pick it 6.
0 to bring the milling cutter 49 closer to the branch rod d, bring it into contact with it, and begin cutting the branch rod d. Further, gradually turn the knob 60 to cut and cut the branch wire rod d. If it is cut, take out the cut branch rod d. Thereafter, the cutting tool 5 is pulled out from inside the main cylinder 1. Next, in order to pull out the connected body of the main cylinder 1 and the adapter 2 that have been driven into the ground from the ground, the auxiliary cylinder 6 is screwed into the upper part of the main cylinder 1 and attached.
Next, place the driving rod 4 parallel to the outside of the auxiliary cylinder 6, position it so that the cylindrical grip part 20 is inserted between both removal protrusions 6', 6' at the end of the auxiliary cylinder 6, and then The inner end surface of the head 18 is the removal protrusion 6'.
, and then pull the cylindrical grip part 20 strongly. Due to the impact force at that time, the connected body of the main cylinder 1 and the adapter 2, which has been driven into the ground, moves to the ground surface. By repeating this operation, the connected body will gradually come out. Main tube 1 and adapter 2
Also, when the connecting body of the auxiliary cylinder 6 becomes unable to stand on its own, it can be removed by hand. Also, if you fill in the hole in the ground after pulling it out, all branch line rod removal work will be completed.

As described above, by using the device of the present invention, it is possible to cut the branch rod underground and remove it with a simple operation by only making a slight excavation in the ground where the branch rod is buried. Removal work can be done extremely easily and in a short time, and the hole in the ground after removing the branch wire rod only needs to be backfilled in a very small area, reducing the labor, time, and cost of the entire work and improving work efficiency. can be significantly improved.

[Brief explanation of the drawing]

Figures 1 to 13 show embodiments of the present invention; Figure 1 is a side view of the adapter, Figure 2 is a front view of the adapter, Figure 3 is a side view of the main cylinder, and Figure 4 is a front view of the adapter. ,
Fig. 5 is a side view of the driving rod, Fig. 6 is a front view of the same, Fig. 7 is a side view of the auxiliary cylinder, Fig. 8 is a front view of the same, and Fig. 9 is a side view of the driving rod.
The figure is a plan view of the holder, FIG. 10 is a side view of the same, and
Figure 1 is a plan view of the cutting tool, Figure 12 is a side view of the same, Figure 13 is a front view of the same, Figure 14 is an explanatory diagram of a partially used state of the device of the present invention, and Figure 15 is an explanation of a branch line of a utility pole. Show the diagram. 1... Main tube, 2... Adapter, 3... Holder, 4... Driving rod, 5... Cutting tool, 6... Auxiliary tube, 6'... Removal protrusion, 9... Branch rod insertion hole, 16... Guide rail, 17 ...stopper, 18...blow head, 19...
... Branch rod insertion hole, 20 ... Cylindrical grip part, 22
... Support frame, 27... Jacket, 30... Main cylinder storage stand, 40... Milling cutter support frame, 41... Guide rail receiving groove, 47... Milling cutter support shaft, 49... Milling cutter, 55... Shaft, 57... Electric drill attachment end.

Claims (1)

[Scope of utility model registration request] It has a cylindrical main body with two guide rails facing each other on the inner circumferential surface, a stopper located at one end of the guide rails, and an inclined outer circumferential surface with a tapered tip, through which a branch rod is inserted through the inner axis. An adapter provided with a hole and capable of being attached and coupled to one end of the main cylinder; and a driving tool having a cylindrical grip portion provided at one end of a striking head that can be inserted into the main cylinder and has a branch rod insertion hole at its axis. a rod, and a gutter-shaped main cylinder whose one end side is supported so as to be rotatable as a fulcrum at the front end of the frame on the abutment frame, and the other side is supported so that it can be tilted by a jack provided on the abutment frame. A holder having a storage base, a semi-cylindrical support frame provided with guide rail receiving grooves on both sides of the outer periphery to be slidably fitted into guide rails provided on the main cylinder, and an end having an electric drill attachment end. A milling cutter support shaft connected to a shaft is supported so as to be movable in a direction perpendicular to the shaft, and the cutting tool can be inserted into the main cylinder; and an auxiliary cylinder having a removal protrusion that can be struck by the striking head of the driving rod.