JPS63124709A - Ring cassette of apparatus for fitting snow-proof ring - Google Patents

Abstract

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

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to the invention, in which snow that falls on power transmission lines, etc. forms a snow conduit and snow accumulates around power transmission lines, lift cables, etc. More specifically, regarding a ring cassette for accommodating a group of rings, that is, a set, in which a plurality of anti-snow rings are stacked, which is used in an anti-snow ring attachment machine that prevents the cutting of steel towers and the collapse of steel towers. When loading a set of anti-snow accretion rings in which a large number of anti-snow accretion rings are connected vertically and using a mounting machine, the rings are lifted one by one from within this cassette using a ring push-up mechanism. The ring cassette is separated one after another and moved to the mounting position, and then the open end of the ring is closed by a mounting tool to tightly fit it around a power transmission line, etc., and its structure, function and efficiency are far superior to conventional ones. Concerning a new and improved ring cassette.

(Prior art) When snow adheres to power lines in cold regions, especially in areas with heavy snowfall, the excessive weight of the snow can cause the power lines to break or break.
In some cases, there is a risk that power transmission towers may collapse.

As shown in Figure 5, snow (a) adhering to one point on a power transmission line turns in the order of (b), (c), and (d) along the stranded grooves of the stranded wires that make up the power line. As it moves along the wire, it eventually becomes a cylindrical snow (tube snow) that surrounds the outer periphery of the wire, as shown in (e), making it difficult to fall. becomes excessive, leading to disconnection of power lines and collapse of steel towers. As a countermeasure for this, if appropriately shaped rings are installed on the power transmission line at the necessary intervals to prevent the formation of snow, the accumulated snow will be prevented from moving while turning along the twisted grooves of the stranded wires. This type of ring is called a snow-resistant ring, but it is also possible to install a snow-resistant ring (sometimes abbreviated as a ring in the explanation below) on a power transmission line. To do this, there are mainly manual methods using human power, and methods that are automated to some extent and utilize power.

In the manual method, as shown in Figure 6, the power transmission line (overhead line) 5
A worker rides on a vehicle 50 hung on the tower 1 and moves manually.In the self-propelled method using pneumatics, as shown in 9rgJ, the ring self-vJ mounting machine 55 is hung on the power transmission m51, and the tower is moved. Air is sent through a hose from the near compressor 56 at the base, and the unit is installed using air force, making it self-propelled.

In manual installation, one plastic ring as shown in FIG. 7 or a set of rings made of a plurality of rings temporarily joined together is operated by operating the handle 53 of the hand tool shown in FIG. 8. Then, the ring is attached to the outer periphery of the power transmission line 51 by snap-engaging the tip of the ring with the toe portion 54 .

In addition, the prior invention (Japanese Patent Application No. 182659/1983) developed and patented by the inventor of the present invention is that when the air hose is withdrawn or the compressor is moved in the above-mentioned manual running type or pneumatic self-propelled type, The purpose of this project is to eliminate defects in the product and to further save labor in the installation process.

To summarize, this mounting device of the prior application includes a pair of claws having opposing claws, a slide plate that supports the pair of claws and is movable in the vertical direction, and a slide plate that is driven by the power of a motor. ml eccentric cam that moves the toes of the pair of claws to each other by driving with a second power
A pair of second eccentric cams are provided, and the first eccentric cam is actuated to move the slide plate upward, and the claw is housed in a cassette and positioned at the leading edge of the slide plate. Then, the second eccentric cam is driven by a head gear to press the wind toes in a direction toward each other, thereby bringing the two opposite ends of the upper part of the ring which are separated from each other into contact with each other. It is a snap connection.

(Problem to be solved by the invention) In the above manual method, for example, the distance between the steel towers is 300
In the case of M, about 1,000 rings are attached during this period, but currently they are worn for about half a day, which causes severe muscle fatigue in the hands and arms of the workers, making it impossible to work continuously for three days. Labor management and excessive work hours were becoming a problem.

Also, when putting on a ring, you have to take out the many rings stored in the storage bag one by one, which is a tedious task, but the partially missing ring-shaped rings are intertwined with each other. It is extremely troublesome to remove the ring, so it takes a long time to remove it from the storage bag, and it is troublesome for the worker to count the number of rings when getting into the work vehicle.

Although the electric mounting device has significantly improved work efficiency compared to the manual method described above, many rings are loaded one by one into a cassette, inserted into the mounting device, and the tool is driven by an eccentric cam. However, the following problems were identified.

(a) It is necessary to prepare a large number (20 to 50) of rings one by one in cassettes, and an extremely large number (20 to 100) of cassettes must be prepared per day.

(b) Even when many rings are loaded into the upper mounting device housed in a cassette, the 10th
As shown in Figure (A), insert the ring 25 into the V-shaped ring rail 102 from the direction of arrow A so that it is skewered, and then insert the ring rail into the cassette from the direction of arrow B in Figure (B) to assemble the push plate assembly. 104, a method of pressing only the ring group in the direction of arrow B, which is also the traveling direction, was adopted, but this required a ring rail, and when replenishing the rings, the following It required a lot of complicated work.

1) Pull out the cassette from the main body of the device, 2) Pull out the push plate assembly from the cassette, 3) Pull out the empty ring rail.

4) Insert a plurality of rings (usually 20 to 50) into a V-shaped ring rail and insert the skewered ring group into the cassette in advance, 5) Attach the push plate assembly to the cassette, 6) Installed cassette It usually takes 1.5~2.
It took 5 minutes.

An object of the present invention is to provide a cassette that has a simple structure and is easier to operate, in order to facilitate such troublesome ring replenishment work and shorten the ring replenishment time.

(Means to solve the problem) 1) Eliminate the ring rail as an intermediate part for inserting the ring to make it into a skewer shape, and 2) replace the push plate assembly that was separate from the cassette body with a cassette Adopts a ring feed plate that is slidably assembled while being pressed by a spring along a shaft that is attached parallel to the side of the main body. 3) The ring feed plate is moved back against the pressing force of the spring. insert the ring group through the ring insertion opening formed thereby, release your hand from the retracted ring feed plate, use the pressing force of the spring to advance the ring feed plate from the retracted position, This problem is solved by placing the ring group in a state where it is pressed in the forward direction by a spring, and replenishing the ring can be completed in a short time with a simple one-touch operation.

(Example) Examples of the ring set of the present invention will be described below with reference to the attached drawings.

As shown in FIG. 4(A), the plastic ring 25 has an occluded upper portion, a closed lower end, and a fixed portion at the center of the lower end, with both opposite ends 25'' of the occluded portion approaching each other. It is shaped so that it can be deformed by the mounting tool of the mounting device.

In this way, multiple individual rings, usually 20 to 50
If a groove-like gap is formed between the bottoms of both adjacent rings as shown in FIG. 4(C), the grooves are aligned vertically in a line as shown in FIG. 4(B). If a groove is not formed, use the bottom surface to temporarily secure the aligned rings with an adhesive or glue them together with a weak adhesive to form a ring set.

The reason why the adhesive strength is weakened in this way is that when the ring is attached to a power transmission line, etc., when the pair of claws on the attachment device rises due to the rise of the slide plate, the ring at the tip pushed out from the cassette is , so that it can be easily separated from an adjacent ring that is subsequently bonded.
As an alternative to the above-mentioned connecting ring in which individually molded rings are bonded together with adhesive, when plastic rings are molded, a large number of rings are connected one after another into thin chips as shown in Fig. 4 (D). The rings are connected at the tip and the other parts are separated, and when the claw rises during installation, the side edge of the claw acts as a cutter and only the tip of the ring is cut and separated. You may also do so.

FIG. 1 is a perspective view showing the structure of the ring cassette of the present invention for loading multiple connected rings in this manner, and FIG. 2(A) is a plan view of the ring cassette of the present invention.
Similarly, (B) is a side view, and similarly (C) is a front view.

The reference number 10 in the drawings indicates the entire ring cassette of the present invention, 11 is the ring cassette case, 11' is the ring stopper at the tip of the cassette case, 11° is the opening on the ring insertion side, and the Greek letter omega ( The ring 25 has a cross-sectional shape similar to ω), and the ring feeding plate 13 advances inside the ring 25 while pushing the ring 25 forward.

12 is a reinforcement and positioning pin 12' at the tip of the cassette case.
It is a front plate that also serves to hold the
The side view is shown in A), and the front view is shown in (B). In FIGS. 1 and 2, reference numeral 13 denotes a feed plate that slides inside the ring cassette case 11 and sends the ring 25 forward under the force of the spring 9. 14 and 15 are shirts (shirts) 18 that serve as guides on which the feed plate 13 slides.
This is a fixed bearing fixed to the side surface of the case 11.

Reference numeral 16 denotes a sliding shaft for sliding the feed plate 13 along the shaft 18, and is constantly pressed by a spring 19 toward the ring stopper 11' in front of the case 11.

Reference numeral 17 denotes a knob that serves as a guide for pulling the integrated feed plate 13 and sliding shaft 16 towards you when loading the group of rings 25.

If this knob is screwed in so that it can be fixed to the shaft 18, when the feed plate 13 is pulled toward the front end, the feed plate 13 can be moved by the hand against the force of the spring 19 while loading the ring. Fixation at the front end allows both hands to be freed for supplying a new set of rings.

Instead of making the knob a screw-in type, a part is provided that extends rearward from the rear end of the feed plate 13, so that when the feed plate 13 is pulled to the front end, the rear part of the cassette case 11, shaft 18, or fixed bearing etc. It may be hooked onto the end (lower left end in FIG. 1) to provide a temporary locking means while loading the ring.

(Function) The working procedure when using the ring cassette according to the present invention is: 1) Pull the knob 17 toward you, 2) Drop the group of rings that have been previously bonded with weak adhesive force into the case, and 3) Pull the knob 17. By releasing your hand, you can use the elasticity of the spring to return the knob and complete the ring loading at the same time.

(Effect of the invention) These operations are close to one-touch operations, and the time required for them is approximately 10 seconds, compared to the 1.5 to 2.5 minutes required when using a conventional ring cassette. It can save you a lot of time.

As described above, according to the present invention, a large number of anti-snow rings are stacked in the axial direction of the rotating shaft of the installation tool, and adjacent rings are supplied as a ring set in which they are connected one after another with a weak bonding force. Since it is used by being loaded into a portable, lightweight anti-snow ring equipment M device driven by a small motor powered by a small motor, advance preparation is simple and efficient.

Also, if you want to replenish rings while working on overhead lines, pull out the ring cassette at that location.

You can immediately resume work by loading a loaded ring cassette into the mounting device, so you can simply remove the empty figure 7 rail, insert the loaded figure 7 rail into the ring cassette, and then attach it. It also frees you from the complicated and time-consuming task of loading equipment.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a ring cassette according to the invention;
Figure (A) is a plan view of the ring cassette in Figure 1, and Figure (B) is a plan view of the ring cassette in Figure 1.
) is a side view, Figure 3 (C) is a front view, Figure 3 (A) is a side view of the front plate, Figure 3 (B) is a front view of the front plate,
FIG. 4(A) is a front view of an individual ring used in the present invention, FIG. 4(B) is a side view of a connected ring set,
(C) is an enlarged view of the connected parts, and (D) is a side view of the ring set integrally molded with plastic.
The figure is an explanatory diagram of the process of forming a pipe of snow, Figure 6 is an explanatory diagram showing the state in which manual work is performed using a vehicle, Figure 7 is a perspective view of a single anti-snow ring, and Figure 8 is an explanatory diagram of the process of snow formation. FIG. 9 is a plan view of the manual mounting tool, and FIG. 10 (A) is an explanatory diagram of the work performed by the pneumatic traveling mounting machine. (B) and (C) are perspective views showing related members of a conventional ring cassette. Reference numeral 10 in the drawing: ring cassette, 11: cassette case, 11'
Niringest collar, 11": Opening. 12: Front plate, 12': Positioning pin, 13: Ring feed plate, 14, 15: Fixed bearing, 16: Sliding shaft, 17
: Knob, 18: Shaft, 19: Spring, 25:9 Snow ring. Agent Patent Attorney Takeo Goto Agent Patent Attorney Iso Fujiki Figure 3 Figure 4 CB) CD) (A) (B
) (C) (D) Old) Figure 6 Figure 7 Figure 8 Figure 9 Figure 10

Claims (3)

[Claims] (1) In a ring cassette of an anti-snow ring installation device that is installed around a wire such as a power transmission line using a power-operated installation tool to prevent excessive snow accumulation, the upper end is attached to the outer periphery of the power transmission line, etc. It consists of a pair of symmetrical semicircular arc-shaped parts that are formed in an occluded shape with a gap left in order to be fitted into the base, extend integrally from the fixed part at the center of the lower end to both the left and right sides, and are deformed by the installation tool. a ring cassette case defined with an opening and a space having a contour and length sufficient to accommodate a group of snow-resistant rings formed by stacking individual snow-resistant rings; a longitudinal side surface of the ring cassette case; at least one fixed bearing provided on the fixed bearing; a shaft supported by the fixed bearing and extending along the longitudinal axis of the ring cassette case; a ring feed slidably provided along the shaft; A ring cassette for a snow-resistant ring mounting device, comprising: a plate; and means for constantly pressing the ring feeding plate in the ring feeding direction. (2) A ring cassette for a snow-resistant ring mounting device according to claim 1, wherein the pressing means is a spring provided along the shaft. (3) In the ring cassette according to claim 1, the anti-snow accretion ring mounting device is configured such that the sliding of the feed plate is performed via a sliding shaft attached to the feed plate. ring cassette.