JP3862343B2 - Mounting method for electrical equipment storage box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for attaching an electric equipment storage box to a pole or the like.
[0002]
[Prior art]
When attaching an electrical equipment storage box to a pole or the like, conventionally, as shown in FIG. 4, first, the metal fitting 2 is attached to the pole 1 using the band 3, and then the door of the electrical equipment storage box 4 is opened. Thus, a method has been adopted in which the bolt 5 is received from the inside of the electric device storage box 4 and passed through the mounting hole 6 of the metal fitting 2 and the nut 7 is tightened.
[0003]
However, such a conventional mounting method has to be performed by two people, one holding the electrical equipment storage box 4 and passing the bolt 5 from the inside, and the other tightening the nut 7 on the receiving metal fitting 2 side. There was a problem that I could not work alone.
[0004]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described conventional problems, and to provide an attachment method for an electric equipment storage box that can be attached by an individual operation.
[0005]
[Means for Solving the Problems]
The mounting method of the electrical equipment storage box of the present invention made in order to solve the above-mentioned problems is the stepped portion for locking at the base end of the shaft portion on the receiving metal side on both sides of the back surface of the electrical equipment storage box. Attach the double-head bolts with bolts, pass the shafts of these double-head bolts through the mounting holes on both sides of the metal fittings, hook the double-head bolts to the metal fittings using the steps , and tighten the nuts. It is characterized by. In this case, it is preferable that the mounting hole of the metal fitting is a daruma hole, and one of the daruma holes is in the vertical direction and the other is in the horizontal direction because the mounting becomes easier.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described.
FIG. 1 is a perspective view showing a mounting method of an electric equipment storage box according to the present invention. As described with reference to FIG. 4, 1 is a pole and 2 is a receiving bracket attached to the pole 1 using a band 3. Reference numeral 4 denotes an electric equipment storage box. The bracket 2 is provided with arms 9 and 9 that are horizontally open on both sides. The arm 9 and 9 are provided with daruma holes 10 and 10 having a large upper portion and a small lower portion as shown in FIG. One side of the harpoon holes 10 and 10 is vertically oriented, and the opposite side is laterally oriented, and the small diameter portion of the laterally draped hole is laterally elongated in order to facilitate the mounting operation. Such a receiving metal fitting 2 is attached to the pole 1 in advance.
[0007]
On the other hand, double-headed bolts 12 are attached to both sides of the back plate 8 of the electrical equipment storage box 4. As shown in FIG. 2, the double-ended bolt 12 is provided with a flange portion 13 at the center, shaft portions 14 are formed on both sides thereof, and a locking step portion 17 is provided at the base end of the shaft portion 14 on the receiving metal fitting 2 side. It is a thing. One of the shaft portions 14 is passed through the back plate 8 of the electric equipment storage box 4 and fixed with a nut 15. As shown in FIG. 3, it is preferable that a packing 16 is interposed between the flange portion 13 of the double-ended bolt 12 and the back plate 8 to ensure waterproofness by the tightening force of the nut 15. The diameter of the shaft portion 14 is smaller than the large diameter portion of the daruma hole 10 and larger than the small diameter portion, and the shaft diameter of the step portion 17 of the shaft portion 14 is smaller than the small diameter portion.
[0008]
At the time of attachment, the electrical equipment storage box 4 is lifted and the shaft portion 14 of the double-ended bolt 12 on one side on the back side is inserted into the large-diameter portion of the side hole 10, and then the shaft portion 14 of the double-ended bolt 12 on the opposite side is inserted. Insert into the vertical daruma hole 10. Even if the hand is released in this state, the stepped portion 17 of the shaft portion 14 is caught by the small diameter portion of the daruma hole 10, so that the electric device storage box 4 does not fall. Therefore, the operator may go around the back side of the electric device storage box 4, tighten the nut 11, and fix the double-ended bolt 12 to the metal fitting 2. If the diameter of the nut 11 is smaller than that of the large diameter portion of the drum hole 10 and larger than that of the small diameter portion, and the nut 11 is lightly screwed in advance with the shaft portion 14 on the receiving metal fitting 2 side of the double-headed bolt, The same effect as the method can be obtained. The mounting hole is not limited to the daruma hole, and a double-ended bolt without a nut or a double-ended bolt without a stepped portion may be inserted into the circular mounting hole and temporarily fixed. V-shaped or U-shaped notches may be used.
[0009]
In this way, according to the method of the present invention, the electric device storage box 4 can be temporarily fixed by passing the double-headed bolt 12 through the saddle hole 10 of the metal fitting 2, so that the nut 11 can be removed from the back side by releasing the hand. It can be tightened and the electric equipment storage box 4 can be attached by one person. In addition, as shown in FIG. 3, if the packing 16 is interposed between the flange portion 13 of the double-ended bolt 12 and the back plate 8, waterproofness can be ensured.
[0010]
As shown in the example of FIG. 1, if one side of the dull holes 10, 10 on both sides of the metal fitting 2 is a vertical dull hole 10 and the opposite side is a horizontal dull hole 10, the mounting error of the double-head bolt 12 Can be absorbed in both the vertical and horizontal directions, making attachment easier.
[0011]
【The invention's effect】
As described above, according to the present invention, the electric device storage box can be easily attached to a pole or the like by one person. Moreover, since it is not necessary to use a special metal fitting, there exists an advantage which is excellent also in economical efficiency.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a method for attaching an electric equipment storage box according to the present invention.
FIG. 2 is an exploded perspective view showing an enlarged main part of the present invention.
FIG. 3 is a cross-sectional view of a double-ended bolt part.
FIG. 4 is a perspective view showing a method for attaching a conventional electrical equipment storage box.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pole 2 Bracket 3 Band 4 Electrical equipment storage box 5 Bolt 6 Mounting hole 7 Nut 8 Back plate 9 of electrical equipment storage box Bracket arm 10 Daruma hole 11 Nut 12 Double-head bolt 13 Center flange 14 Shaft 15 Nut 16 Packing 17 Stepped part

Claims (2)

At the both sides of the back of the electrical equipment storage box, double-headed bolts with locking stepped portions at the base end of the shaft on the side of the bracket are attached, and the shafts of these double-headed bolts are attached to both sides of the bracket. A mounting method for an electric equipment storage box, wherein the step is used to pass through the mounting holes and hook on the metal fitting using the stepped portion , and then tighten the nut. The mounting method of the electric equipment storage box according to claim 1, wherein the mounting hole of the metal fitting is a daruma hole, and one side of the daruma hole is vertically oriented and the opposite side is horizontally oriented.

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