JPH0416993Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention utilizes the so-called roping process, in which ropes are hung around trees to prevent them from falling under the weight of snow and coming into contact with power lines. This article relates to tree rope anchors used when

[Conventional technology]

Traditionally, when constructing power transmission lines in mountainous areas, etc., careful consideration has been taken to prevent trees from coming into contact with the power lines. There was a risk that the vehicle would fall under the weight of the vehicle and come into contact with power lines, causing a short circuit. Workers patrol the area and, if they find a tree that could come into contact with a tree, they attach a rope to the tree to prevent it from falling. In this rope attachment work, a worker uses a ladder, a pole climber, or climbs up a tree that there is a risk of contact with, or climbs along the branches, ties one end of the rope to a high point in the tree, and attaches the rope to the other person who remains on the ground. A worker would tie the other end of the rope under tension to a nearby tree or stake.

[The problem that the idea aims to solve]

However, as mentioned above, conventional rope attachment work requires workers to climb high up in the tree, which is cumbersome and time-consuming, and can also cause problems such as broken branches, tilted ladders, or slipping of the pole lifter. In addition, if the use of a trunk line was omitted to reduce the complexity of the work, there was a risk of falls and other industrial accidents.

The present invention was developed based on the above-mentioned circumstances, and allows workers to easily and conveniently lock one end of a rope from the ground to a high place in a tree without having to climb the tree, and to solve various problems associated with tree climbing. The object of the present invention is to provide a rope anchoring device for trees that is completely free of danger and complexity.

[Means to solve the problem]

To achieve the above object, the rope anchor according to the present invention is provided with a cylindrical main arm curved in a C shape at the tip of an extensible operating rod, and a socket ring near the closing end of the main arm. erect, attach rope temporary fixing pieces to the main arm and the socket ring at appropriate intervals, insert the slide arm into the main arm so that it can go in and out from the open end of the main arm, and attach the slide arm to the tip of the slide arm. A coil spring is inserted into the main arm coaxially with the slide arm, and the base end of the coil spring is inserted into the base end of the slide arm located on the sealing end side of the main arm. At the same time, the other end is brought into contact with the inward protruding edge provided near the open end of the main arm, and the tip of the slide wire hanging down along the operating rod is inserted into the main arm from the middle part of the main arm. , is characterized in that it is connected to the base end of the slide arm.

〔Example〕

Hereinafter, the tree rope anchor according to the present invention will be specifically explained with reference to the drawings. The proposed locking device connects a main arm 3 made of a cylinder 2 curved in a C shape to the tip of an extensible operating rod 1, and has a socket ring 4 erected at one end of the main arm 3. A slide arm 5 is inserted into the arm 3 and extends from the other end and can enter the socket ring 4.
The operating rods 1 are 4 with a length of about 1.5 m and different diameters.
Consists of a sheath tube 1a made of FRP, with a sheath tube 1a having a large diameter and a sheath tube 1a having a slightly smaller diameter.
It is designed to be extendable and non-removable and inserted one after another so that the extension can be adjusted to a desired length. The main arm 3 is curved in a substantially C shape when viewing the cylinder 2 from above, and has a lowering cylinder 7 fixedly installed in the middle thereof to fit into the upper end of the operating rod 1. Further, the main arm 3 has one end as a sealed end 3a and the other end as an open end 3b, and a socket ring 4 is provided upright near the sealed end 3a, and rope temporary fixing pieces are attached to the main arm 3 and the socket ring 4, respectively. 8 are attached at approximately equal intervals. A slide arm 5 with a loosely fitted coil spring 9 is inserted into the main arm 3, and the base end of the coil spring 9 located on the sealing end 3a side is connected to the base end of the slide arm 5.
The tip of the coil spring 9 is brought into contact with the inward projecting edge 3c provided near the open end 3b of the main arm 3 from the sealed end 3a side, and the tip of the slide arm 5 is slightly protruded from the open end 3b of the main arm 3. It has a pointed pin portion 5a. Further, a slide wire 10, one end of which is locked to the base end of the slide arm 5 within the main arm 3, is suspended downward via a pulley 11 attached to the intermediate portion of the main arm 3. Then, when this slide wire 10 is pulled down,
The slide arm 5 slides toward the open end 3b, and the pin portion 5b enters the socket ring 4. At this time, the coil spring 9 is compressed and generates a restoring force in the direction of the sealing end 3a, so when the slide wire 10 is released, the slide arm 5, coil spring 9, and slide wire 10 return to their original positions due to the restoring force. The state returns to the state in which the base end of the slide arm 5 contacts the sealed end 3a and the pin portion 5a at the tip slightly protrudes from the open end 3b. In addition, rope temporary fixing piece 8
Of these, the rope temporary fixing piece 8a near the sealing end 3a of the main arm is formed of a spring material, and the rope temporary fixing piece 8b at the top of the socket ring 4 is formed of hook and loop fastener, and is held by the temporary rope temporary fixing piece 8. The power has been increased. Further, a rope guide 12a which holds a rope slidably up and down with a pair of spring members is attached to the lower tube 7, and a spiral rope guide 12b is attached below the socket ring 4.

The proposed fastening device has the above-mentioned structure, and the rope attaching operation using the proposed fastening device will be explained step by step based on FIG. 4.

(a) First, prepare the binding rope 13 and the pulling rope 14. The binding rope 13 is for wrapping around a tree at a high place, and a single rope is bent at the center and tied around the rope with a vinyl binding wire 15 to form a small loop 16, and the rope is doubled. A large knot 17 is made by tying the end of the rope twice. The pull rope 14 has one end tied to the tie rope 13 wrapped around a tree, and the other end tied to a nearby tree or stake.One rope is folded in the middle to make it double. Insert the bent part into the loop part 16 of the tied rope 13 and attach the loop part 16.
An annular portion 18 is formed which is tightened by the annular portion 18.

(b) Next, attach the binding rope 13 and the pull rope 14 to the main anchor. That is, the annular portion 18 of the pull rope 14 is held along the socket ring 4 by the rope temporary fixing pieces 8, 8b, and the rope guides 12a, 12
b and hangs downward through the rope temporary fixing piece 8, along with the binding rope 13 along the main arm 3.
8b, and stick the knot 17 into the pin part 5a.

(c) Next, extend the operating rod 1, search for a high place on the tree 20 where it is easy to attach the rope, and connect the opening 19 of the main arm 3, that is, the pin part 5a and the opening ring 4.
The tree 20 is inserted into the main arm 3 from between.

(d) Then, pull down the slide wire 10. Then, the slide arm 5 extends from the open end 3b of the main arm 3 so as to surround the tree 20, and the pin portion 5a enters the socket ring 4 with the knot 17.

(E) Then, when the pull rope 14 is pulled down, the annular portion 18 held along the socket ring 4 comes off the rope temporary fixing pieces 8, 8b and narrows, thereby irremovably locking the knot ball 17.

(f) After that, when you release your hand from the slide wire 10, the coil spring 9 installed inside the main arm 3
The slide arm 5 returns to its original position due to the restoring force of
An opening 19 is created in the main arm 3 again.

(G) Then, remove the proposed device from the tree 20 using the opening 19 of its main arm 3, and at the same time remove the tying rope 13 from the rope temporary fixing pieces 8, 8a. In addition, the pulling rope 14 is also connected to the rope guide 12b.
Remove it.

(h) Finally, tie the lower end of the pull rope 14 to a nearby tree or stake under tension.

When the rope attachment work is completed as described above, the operating rod 1 is retracted, the operating rod 1 and the main arm 3 are separated, and carried in a compact state to the next work site.

[Effect of idea]

The tree rope anchor according to the present invention is constructed as described above, in which the pin portion of the slide arm that protrudes from the open end of the main arm so that it can be moved in and out of the main arm opens the main arm by pulling down the slide wire. Since it is designed to be able to enter the socket ring set up near the edge, if the rope for securing the tree is set in the specified state on the proposed device, the worker can reach the ground without climbing the tree. One end of the rope can be anchored at a high point in the tree by simply operating the proposed device and the rope. Therefore, the worker does not have to climb to a high place in the tree when attaching the rope, and is completely free from dangers such as falling accidents.
In addition, since there is no need for complicated and time-consuming tree climbing,
Rope attachment work can be done in a short time, greatly improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the tree rope anchor according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is an enlarged cross-sectional view of the vicinity of the sealing end of the proposed device, and Fig. 4 shows the present invention. It is a work process diagram showing the work procedure of rope attachment work using a tool. 1... Operating rod, 2... Cylindrical body, 3... Main arm,
3a... Sealed end, 3b... Open end, 3c... Inward projecting edge, 4... Socket ring, 5... Slide arm,
5a...Pin portion, 8...Rope temporary fixing piece, 9...Coil spring, 10...Slide wire.

Claims (1)

[Scope of utility model registration request] A cylindrical main arm 3 curved in a C shape is provided at the tip of the extensible operating rod 1, and a socket ring 4 is provided upright near the sealing end 3a of the main arm 3. Attach rope temporary fixing pieces 8 to 4 and 4 at appropriate intervals,
A slide arm 5 is inserted into the main arm 3 so that it can be inserted into and removed from the open end 3b of the main arm 3, and a pin portion 5a that can enter the socket ring 4 when the slide arm 5 is expanded or contracted is provided at the tip of the slide arm 5. Insert the coil spring 9 into the arm 3 coaxially with the slide arm 5, and insert the base end of the coil spring 9 into the main arm 3.
The slide arm 5 is engaged with the base end of the slide arm 5 located on the sealed end 3a side, and the other end is brought into contact with the inward protruding edge 3c provided near the open end 3b of the main arm 3, and the main arm 3 is moved along the operating rod 1. This rope anchor for trees is characterized in that the tip of a hanging slide wire 10 is inserted into the main arm 3 from the middle part of the main arm 3 and is locked to the base end of the slide arm 5.