JPH0322446Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention [Industrial field of application] This invention is a snow-resistant device that supports the branch lines of utility poles so that they do not bend even in the event of heavy snowfall of several meters. Concerning branch line guards.

[Conventional technology]

A snow-proof branch line guard consists of a pole whose base is buried underground, and a diagonal member attached to the top of the pole and whose base is buried underground and runs along the branch line of the utility pole.

Generally, branch lines are installed at a substantially constant opening angle relative to utility poles, but in areas with heavy snowfall, the topography varies and the slope angle of the ground often differs, so the above-mentioned ground length up to the mutual connection point of the support and diagonal members is required. There may be cases where the above-mentioned embedding depth has to be changed due to a different relationship.

Therefore, the height of the strut can be adjusted freely (Japanese Utility Model Publication No. 14426/1983), or the diagonal member is provided with multiple mounting brackets for the strut (Utility Model Publication No. 14426/1983).
174568) has been proposed.

[Problem that the invention attempts to solve]

However, in the former case, the opening angle of the diagonal member changes as the support column expands and contracts. In the latter case, the installation position of the diagonal member and the length adjustment between the base of the diagonal member are adjusted in stages, so it cannot be adapted to various uneven terrain.
In addition, since each type has only one support, there is a problem in the support strength of long and heavy diagonal members for areas with heavy snowfall.

The object of the present invention is to provide a snow-resistant branch line guard that eliminates the above-mentioned problems.

B. Structure of the invention [Means for solving the problem] The invention consists of installing a substantially U-shaped bracket 3 that can swing between the upper parts of two parallel columns 1, 1, and diagonal members 2 to which utility pole support lines S are attached. This is a branch line guard for snow protection, in which the upper part of the bracket 3 is slidably placed on the bracket 3, and a reinforcing arm 4 is provided between the diagonal member 2 and the lower part of the pillars 1, 1 so as to be movable up and down on the pillars 1, 1.

[Effect]

The support column is composed of two parallel supports 1, 1, and the branch line receiving diagonal member 2 is slidably mounted on a substantially U-shaped bracket 3 that is swingably attached between the upper parts of the support struts. It is possible to bury the appropriate amount to suit the depth and uneven terrain, and the amount of burial can be adjusted steplessly.
Further, since the bracket 3 is supported by the two pillars 1, 1, even a long and thick diagonal member 2, for example, can be stably supported. The auxiliary arm 4 between the lower parts of the pillars 1, 1 and the diagonal member 2 is moved up and down to align the diagonal member 2 along the branch line S.

〔Example〕

Examples will be described below based on the drawings.

1 and 1 are square pipe struts, 2 is a branch line support diagonal member also using square pipes, and 3 is a bracket that is swingably attached with a bolt shaft 5 between the upper parts of the struts 1 and 1.
As shown in FIG. 3, it is formed into a U-shape in cross section, and the diagonal member 2 is fitted and slidably placed therein.

Numeral 6 is a bolt that connects the columns 1 and 1 below the bracket 3, and a nut 8 with a spacer 7 in between.
Tighten with. Reference numeral 9 denotes a connecting member provided at a substantially intermediate position in the longitudinal direction of the pillars 1, 1, which can have an arcuate cross section.

In Figures 2 and 3, reference numeral 10 denotes a presser foot for the branch line S, which is formed by inserting the branch line S along the top surface of the diagonal member 2 into its recess, and bending both ends of the branch line and a part of the bracket 3 outward. The branch line S, the diagonal member 2, and the bracket 3 are connected by tightening the bolt 12 and nut 13 through the tightening piece 11 and the bolt hole.

Reference numeral 4 denotes an auxiliary arm, whose upper end is attached to the bearing fitting 14 on the back surface near the upper part of the diagonal member 2 with a shaft 14a, and whose lower end is a substantially convex arm that fits between the outer surfaces of both supports 1, 1, as shown in FIG. The shaft 2 is attached to the bearing 22 on the back of the sliding fitting 15.
Step 3 allows you to install it freely. A presser foot 16 is applied to the opening surface of the convex sliding fitting 15, and the bolt 17 and nut 18 are tightened to fix it to the supports 1,1.

FIG. 5 shows the part where the branch wire S is fixed to the diagonal member 2. A U-bolt 19 is fitted into the diagonal member 2 from below, and a hole at the end of the presser foot 20, which has a recess for receiving the branch wire, is inserted into the bolt 19. through it and tighten with nut 21.

Figures 6 and 7 show the assembly procedure for the above branch line guard.
This will be explained based on the diagram.

Remove bolts 5 and 7. The center of the hole for the bolt 5 for mounting the upper bracket is approximately 20 mm from the center of the branch line.
Bury the bases of pillars 1 and 1 into the ground so that they are 1 mm above each other.

The base of the diagonal member 2 is positioned in a hole dug to a required depth and placed on the semicircular arc-shaped connecting member 9.

The sliding fittings 15 are attached to the pillars 1, 1 and moved upward to push the diagonal member 2 up slightly above the hole of the bolt 6 via the auxiliary arm 4. Bolt 6/Spacer 7
Attach between pillars 1 and 1.

Fit the bracket 3 onto the diagonal member 2 from below, and pass the bolt 5 through the bearing portion 3a and the shaft hole of the column 1 to attach the diagonal member 2.
Attach to post 1. The diagonal member 2 is aligned along the branch line S, and the sliding metal fitting 15 is fixed to the column 1.

Fix the branch line S to the diagonal member 2 and bracket 3 with the presser foot 10, and secure the branch line S with the U bolt 19 and presser foot 20.
is fixed to diagonal member 2 at several points.

C. Effect of the invention As mentioned above, the diagonal members 2 can slide on the support columns 1 via the brackets 3, so that the embedding points of the diagonal members 2 can be adapted to different locations on uneven ground with different heights, and the support and Since diagonal members can be joined in a stepless manner, construction is easy and efficient. Also, parallel the pillars 2
Since the diagonal members are supported through the brackets between the diagonal members, it is possible to stably support even thick rectangular pipe diagonal members, for example, 3 m in length, especially for areas with heavy snowfall.

[Brief explanation of the drawing]

Figure 1 is a side view of the snow-proof branch line guard of the present invention in use, Figure 2 is an enlarged side view of a portion of Figure 1,
Figure 3 is a cross-sectional view taken from Figure 2, Figure 4 is an enlarged cross-sectional view taken from Figure 1, Figure 5 is an enlarged cross-sectional view taken from Figure 1, and Figures 6 and 7 show the assembly procedure. Side view. 1 is a column, 2 is a diagonal member, 3 is a bracket, and 4 is an auxiliary arm.

Claims (1)

[Scope of utility model registration request] A roughly U-shaped bracket that can swing between the upper parts of the two parallel columns is installed, the upper part of the diagonal member to which the utility pole support wire is attached is slidably placed on this bracket, and an auxiliary arm is installed between the diagonal member and the lower part of the column. A branch line guard for snow protection that can be moved up and down on a support.