JPH05263552A - Preventing device for sticking of snow to steel tower - Google Patents

Abstract

PURPOSE:To make work on the top of a tower easy, and to shorten the time required for execution of work. CONSTITUTION:A device for removing snow and ice stuck to electric wires is equipped with an attachment jig 6, openable by operation of hinges 4 and enveloping an angle member 2 constituting a steel tower 1, and a snow-sticking prevention plate 5 on which paint or a sheet with snow-sticking resistance characteristic is applied or stuck. The snow-sticking prevention plate 5 is interposed between the attachment surface 2a of the angle member 2 and the attachment jig 6, and can be replaced by opening the attachment jig 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel tower snow accretion prevention device for preventing snow damage from a steel tower, and more particularly to a steel tower snow accretion prevention device for facilitating work on the tower and shortening work time. Regarding the device.

[0002]

2. Description of the Related Art FIG. 5 shows a snow accretion state when there is snowfall on a steel tower 1 in a cold region or the like.
Snow is affixed to a, diagonal member 1b, horizontal member 1c, arm member 1d, and the like.

As shown in FIGS. 6 (a), 6 (b), 6 (c), and 6 (d), snow accretion on the main pillar 1a, diagonal member 1b, horizontal member 1c, arm member 1d, etc. Most of the mountain-shaped member 2 is on the horizontal surface 2a and the vertical surface 2b. Most of the snow on the vertical surface 2b falls early. For this reason, when it snows the day before and freezes in the middle of the night, and then falls, it becomes a snowflake of hard ice, which causes great damage to passers-by, constructions, agricultural products, etc. under the tower 1.

Therefore, as shown in FIG. 7, a method of attaching a snowfall prevention net 3 to a steel tower 1, a method of attaching a heater to a steel tower member to melt snow, and attaching a heat sink to a portion where snow accretion is desired to be prevented. , Method of connecting the heat sink and the heat collector with a heat pipe to melt snow
No. 84059) or a method of providing a projection on a steel tower member so as not to drop the snow until the snow is melted.

However, according to the method described above, in the case of using the snowfall prevention net, it is not effective unless the large net that extends to the bottom of the tower arm is attached by predicting the range that covers all the snowfall pieces. The problem remains from the top and external aesthetic viewpoint, and if the size of the mesh of the net is too small, it will be covered with snow on the net and the strength will be insufficient, and if the size of the mesh is coarse, the effect will be reduced. There is. Further, in the case of the method of attaching the heater to the steel tower member, a large amount of electric power for heating the heater is required, and a large cost is required even in the method of connecting the heat radiating plate and the heat collecting plate with the heat pipe to melt the snow. .. Further, the method of attaching the projection to the steel tower member so as not to drop snow accretion has not been verified for its effect, and also has an influence on the mounting method, the aesthetic appearance of the steel tower, and the maintenance and inspection work.

[0006] Therefore, recently, it has been considered to directly apply the snow-hardening paint or to attach the snow-hardening sheet material to the steel tower member so as not to snow the steel tower. According to this method, the steel tower is used. It is possible to prevent snow from accumulating on the steel tower while keeping the cost down without spoiling the appearance.

[0007]

However, according to the conventional method for preventing snow accretion from the steel tower, the snow accretion preventing effect is recognized, but the snow-difficult-to-paint or the snow-adhesive sheet material maintains its effect due to the problem of weather resistance. In order to do so, it is necessary to repaint the paint or replace the sheet every winter. For this reason, the work of applying the paint or attaching the sheet on the steel tower is extremely poor in the bad weather conditions in winter, and there is a problem that the labor and time spent for the work become excessive.

Therefore, an object of the present invention is to provide a steel tower snow accretion prevention device which facilitates work on the tower and shortens the work time.

[0009]

In view of the above problems, the present invention has a mountain-shaped member which constitutes a steel tower by opening and closing through a hinge mechanism in order to facilitate the work on the tower and shorten the working time. And a snow-prevention plate formed by applying or sticking a paint or sheet material having a snow-diffusing effect onto a plate-shaped member, and the snow-prevention plate is mounted on the mountain-shaped member. (EN) A steel tower snow accretion prevention device that is sandwiched between a surface and a mounting jig and can be replaced by opening and closing the mounting jig.

The mounting jig has a groove for accommodating the snow accretion preventive plate, and a fixing bolt for closely adhering the snow accretion preventive plate to the mounting surface is inserted into the groove. Further, both ends of the mounting jig may be configured to expand and contract by adjusting the variable screws.

[0011]

In the steel tower snow accretion prevention device of the present invention, since the snow-difficulty paint or the sheet is applied or stuck on the ground,
For work on the tower, it is sufficient to replace the old snow-prevention plate with a new snow-prevention plate, which facilitates work on the tower and can significantly reduce the work time.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The steel tower snow accretion prevention device of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention, in which a snow accretion prevention plate 5 is attached by a mounting jig 6 to a mountain-shaped member 2 constituting a steel tower. The snow accretion prevention plate 5 is attached by sandwiching the vertical surface (mounting surface) of the mountain-shaped member 2 and the mounting jig 6.

FIG. 2 is a side view of FIG. 1, in which a mountain-shaped member 2 having a substantially L-shaped cross section is surrounded by a mounting jig 6 having the same shape. The mountain-shaped member 2 is attached so as to be sandwiched between the vertical surfaces 2a.

The mounting jig 6 has hinges 4 at both ends,
Since the rotating portions 6a and 6b rotate by removing the bolt 7, it can be attached to and detached from the mountain-shaped member 2. At a position corresponding to the mounting position of the snow accretion prevention plate 5 of the mountain-shaped member 2,
A groove 5a for accommodating the snow accretion prevention plate 5 is formed, and the groove 5
A fixing bolt 8 for pressing the snow accretion prevention plate 5 against the mounting surface 2a is inserted in a.

The snow-prevention plate 5 is a paint having a snow-prevention effect,
Alternatively, the sheet material is applied to or adhered to the plate-shaped member. As the plate-like member, it is desirable to use an aluminum plate or hard plastic in consideration of workability and workability.

In the above structure, when replacing the snow-prevention plate 5, first, a new snow-prevention plate 5 is prepared by applying paint or sheet material having a snow-diffusing effect to the plate member in advance. To do. Then, the worker fixes the fixing bolt 8 on the tower.
The new snow-prevention plate 5 in place of the old one.
Is set in the groove 5a and the fixing bolt 8 is tightened again to complete the work. The old snow-prevention plate 5 may be brought back and the paint applied or the sheet material replaced. Further, although the snow accretion prevention plates 5 are attached to both sides of the mountain-shaped member 2, only one of them may be used in an area where the main wind direction during snowfall is always determined.

As described above, since the application of the snow-hardening paint or the application of the sheet is performed on the ground, it is not necessary to perform such work on the tower, and the work on the tower requires the use of an old snow-prevention plate. All you have to do is replace it with a new snow protection plate. Therefore, the work on the tower is facilitated and the work time can be significantly shortened.

FIG. 3 shows a second embodiment of the present invention, in which the end portion 9a having the hinge 4 is constructed so that it can be appropriately expanded and contracted in the direction of the arrow by adjusting the variable length screw 10, and the various sizes of the mountain are provided. Since it can be matched with the mold member 2, one jig can be used as long as the size does not change extremely. Further, a large number of jigs such as large, medium, and small may be prepared and dealt with.

FIG. 4 shows a third embodiment of the present invention, in which a steel pipe snow-prevention plate 12 having a circular cross section is attached to a steel pipe member 13 via a steel pipe attachment jig 11. The number of parts is small and the configuration is simplified. For this reason,
The cost can be reduced.

[0021]

As explained above, according to the steel tower snow accretion prevention device of the present invention, it has a mounting jig that opens and closes via the hinge mechanism and surrounds the mountain-shaped members constituting the steel tower, and the snow-hardening effect. A snow-prevention plate formed by applying or sticking paint or a sheet material to a plate-shaped member, and the snow-prevention plate is sandwiched between the mounting surface of the mountain-shaped member and the mounting jig, Since it can be exchanged by opening and closing, the work on the tower can be facilitated and the work time can be shortened.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

FIG. 2 is a side view showing how the snow accretion prevention plate is attached to the mountain-shaped member.

FIG. 3 is an explanatory diagram showing a second embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a third embodiment of the present invention.

FIG. 5 is an explanatory view showing a snow accretion state of a steel tower during snowfall.

FIG. 6 is an explanatory view showing a snow accretion state of the mountain-shaped member.

FIG. 7 is an explanatory view showing a conventional snowfall prevention method.

[Explanation of symbols]

1 steel tower 2
Vertical member 2a Vertical surface 4
Hinge 5 Snow prevention plate 5a
Groove 6 Mounting jig 7
Bolt 8 Fixing bolt 9
Variable mounting jig 10 Variable bolt 11
Steel pipe mounting jig 12 Steel pipe snow accretion prevention plate 13
Steel pipe member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoshi Shimojima 5-1-1 Hidakacho, Hitachi City, Ibaraki Hitachi Cable Systems Co., Ltd.

Claims (2)

[Claims] 1. A mounting jig that opens and closes via a hinge mechanism and surrounds a mountain-shaped member that constitutes a tower, and a coating or sheet material having a snow-diffusing effect applied or attached to a plate-shaped member. And a snow accretion prevention plate, wherein the snow accretion prevention plate is sandwiched between the mounting surface of the mountain-shaped member and the mounting jig, and is replaceable by opening and closing the mounting jig. Prevention device. 2. The mounting jig has a groove for accommodating the snow accretion preventive plate, and a fixing bolt for adhering the snow accretion preventive plate to the mounting surface is inserted into the groove from the outside. Item 1. A tower tower snow accretion prevention device.