JP2545608Y2 - Mounting device for pole-mounted electrical equipment - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an improvement of a mounting device for mounting a pole electric device such as a high-voltage cutout to an arm of a power pole, and particularly to a mounting device. It is devised to prevent the mounting bolts constituting the device from being dropped.

[Conventional technology]

When mounting electrical equipment for poles, such as high-voltage cutouts and various switch boxes, to the arm of a utility pole in an overhead distribution line, for example, a mounting device 100 as shown in FIG. 11 is used.

In this mounting device 100, two mounting brackets 103, 104 having a U-shaped rear portion are fixed to a U-shaped connection auxiliary metal fitting 102 fixed to the rear surface of the high-pressure cutout 101 with bolts and nuts 105, and a bolt 106 With the mounting bracket 103,
The rear end of the U-shaped portion 104 is inserted into the arm 107 provided on the pillar to temporarily support the high-pressure cutout 101, and in this temporarily supported state, the mounting bolt 106 is attached to the lower mounting bracket 1
03, the screw portion 106a at the tip is projected upward from the mounting hole of the upper mounting bracket 104, and
The washer 10 is attached to the screw part 106a of the mounting bolt that protruded last.
A mounting nut 109 is screwed through 8, and the nut 109 is tightened for mounting.

[Problems to be solved by the invention]

By the way, since the mounting bracket device 100 has a structure in which the rear ends of the mounting brackets 103 and 104 are inserted and temporarily supported with respect to the arm bar 107, during this insertion work, the mounting bolts which hinder the insertion are disturbed. It is necessary to remove 106 in advance. Therefore, the mounting bolt 106 often dropped during the work on the pole. Further, since the mounting bolts 106 are mounted on the mounting brackets 103 and 104 until the transportation to the site, the mounting bolts 106 need to be once removed and then mounted again at the time of mounting at the site, and the mounting workability is poor. Was.

In addition, since installation cannot be performed in a series of operations as described above,
The high-pressure cutout 101 may be left in a temporarily supported state on the arm 107, in which case the insertion is shallow,
When something touches, high pressure cutout 101 from armband 107
But could easily fall off. In addition, there is a type in which a U-shaped mounting bracket having an open end is inserted into the arm, and when the mounting bracket is mounted on the arm, the mounting bolt is released and temporarily held by the lower mounting bracket. In the thing, since the temporary holding of the mounting bolt is held in a vertical position suspended from the lower mounting bracket, when setting the mounting bolt to the upper mounting bracket, it is necessary to rotate the mounting bolt by 180 ° and raise it. Lack of quickness of work on the pole is lacking, and furthermore, if the mounting bolts are forgotten to be tightened, the mounting bolts are in a vertical posture, so it is difficult to see from the ground, and it is difficult to confirm the forgotten tightening.

[Means for solving the problem]

In order to solve the above-mentioned problem, the present invention forms a U-shaped arm-bar mounting portion (4) having an open rear end by using upper and lower mounting brackets (1) and (2). A pole-mounted electric device (10) is mounted on the front pieces (1a) and (2a) of the mounting brackets (1) and (2), and the rear pieces (1b) and (2b) of the mounting brackets (1) and (2) are mounted. A bolt mounting hole is formed in (2b) and a mounting bolt (6) is inserted between the holes. A bolt mounting hole (1c) formed in the upper mounting bracket (1) is connected to an upper mounting bracket (1). The upper or lower mounting bracket (2) is formed at the rear end of the lower mounting bracket (2) behind and below the rear end (1b ') of the upper mounting bracket (1). An extension piece (2c) is formed to bend into a bolt mounting hole (2d) formed in the lower mounting bracket (2). Both is characterized in that it has a long hole over the extending direction of the extension piece to allow tilting diagonally downward beyond 90 ° (2c).

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail.

1 to 8 show a first embodiment of the present invention. FIG. 1 shows a mounting device (A) of the present invention when a high-pressure cutout is used by being attached to a ferrule. In the figure, reference numeral 1 denotes an upper mounting bracket bent into a crank shape, and 2 denotes a lower mounting bracket. The front mounting pieces 1a and 2a are screwed by bolts 3a and nuts 3b in a state where the respective front pieces 1a and 2a are vertically overlapped. Has become. The rear pieces 1b and 2b are parallel to each other with a gap of the height of the arm 5 so that a U-shaped arm metal attachment 4 having an open rear end is formed by these pieces. ing. At the rear end of the rear piece 1b of the upper mounting 1 as shown in FIG. 5, there is formed a mounting hole 1c formed of a cutout opening on one side. At the rear end of the rear piece 2b of the lower mounting member 2, an extension piece 2c that is bent obliquely downward is formed. The rear piece 2b has a mounting hole formed of a long hole at a position facing the mounting hole 1c of the upper mounting bracket 1.
A horizontal rear piece 2b is formed in the hole 2d so that a mounting bolt 6 to be described later can be tilted downward at least 90 ° with respect to the vertical direction around the mounting hole 2d at least over 90 °. From the vicinity of the rear end to the extension piece 2c. The tilt angle α of the mounting bolt 6 in the embodiment shown in the drawing is 110 °. The mounting bolts 6 are inserted into the mounting holes 1c and 2d of the upper and lower mounting brackets 1 and 2 from the lower mounting bracket 2 side.
And the tip of the screw portion 6b is mounted so as to protrude upward from the mounting hole 1c of the upper mounting bracket 1. Reference numeral 7 denotes a metal fitting for preventing falling off, and bent portions 7a provided on both sides of the mounting bolt 6 with a hole formed in the center thereof being inserted into the mounting bolt 6.
Engages with the side surface 1d of the upper mounting bracket 1, and the mounting bolt 6 once inserted into the mounting hole 1c
It also doubles as a washer to prevent accidental detachment. 8 is a spring washer and 9 is a nut. Reference numeral 10 denotes a high-voltage cutout, which is an electrical device for poles, and a F-shaped connecting auxiliary fitting 11 is provided on a rear surface thereof with a bolt 12 and a nut.
13, and the rear piece of the connection auxiliary fitting 11 is attached to the front pieces 1a, 2a of the mounting fittings 1, 2 by bolts 3a and nuts 3b.
Are connected by

Next, a description will be given of a mounting operation of the mounting device (A) to the arm 4 in this embodiment. First, the rear pieces 1b and 2b of the upper and lower mounting brackets 1 and 2 are inserted into the arm bar 5 with the mounting bolt 6 tilted downward as shown by the chain line in FIG. 1, and then the mounting bolt 6 is raised and The threaded portion 6b at the tip is inserted into the mounting hole 1c from the inclined position located on the side of the upper mounting bracket 1 as shown in FIG. Next, the fall-prevention metal fitting 7 previously inserted into the mounting bolt 6 is fitted to the upper mounting piece 1 so that the bent portion 7a is locked to the side surface 1d, and the nut 9 is connected to the upper mounting piece 1 via the spring washer 8. Tighten to complete the installation.

FIGS. 9 and 10 show another embodiment of the present invention. Compared with the above embodiment, the mounting bolt 6 tilts further rearward and downward in relation to the mounting bolt 6 and the lower mounting bracket 2. The extension piece 2c is bent at a right angle so that it can be made. The elongated mounting hole 2d formed in the extension piece 2c is configured such that the mounting bolt 6 is tilted by about 120 ° with respect to the vertical direction. In the relation between the mounting bolt 6 and the upper mounting bracket 1, the mounting hole 1e is formed as a long hole whose rear end is opened so that the mounting bolt 6 is disengaged from the mounting position to the rear. A locking portion 1f bent upward is formed at the rear end of the upper mounting bracket 1 so that the metal fitting 9 is prevented from being inadvertently detached rearward from the state of being inserted into 1e. It has become. Other structures are the same as those of the above embodiment.

In the embodiment shown in the above-mentioned drawings, the tilt angle of the mounting bolt 6 with respect to the lower mounting bracket 2 is set to 110 °, 120 °.
The tilt angle is set so that, when the rear ends of the upper and lower mounting brackets 1 and 2 are inserted into the arm 5 during mounting, the lower mounting bracket is used to prevent the mounting bolt 6 from being held on the arm 5. The angle may be set to be lower than the rear piece 2a.

[Effect of the invention]

As described above, according to the present invention, the mounting bolt (6) is
When the mounting brackets (1) and (2) are mounted on the arm, the mounting bolts (6) can be tilted obliquely downward by more than 90 ° from the standing state while being mounted on the lower mounting bracket (2). ) Can be temporarily supported by inserting the mounting brackets (1) and (2) into the arm (5) while holding the lower mounting bracket (2) in a tilted state without removing the mounting bracket from the mounting hole. As a result, it is possible to prevent the mounting bolts and nuts attached thereto from being lost during the work on the pole.

Also, as described above, since the mounting bolt is held while being inserted into the mounting hole of the lower bracket, when the mounting bolt is fully mounted from the tilted state, the mounting bolt provided with a nut or the like is raised from the tilted state. It can be inserted into the mounting hole of the upper mounting bracket and tightened with the nut, and the mounting operation can be performed quickly and easily. That is, since the mounting bolt is in a half-raised downward tilting state, the work of standing up from the tilting state can be performed easily and quickly. When inserting the mounting bracket into the arm, the extension on the rear side of the lower mounting bracket is located further back than the rear end of the upper mounting bracket, so the upper surface of the extension serves as a guide and the upper mounting The mounting bracket can be smoothly inserted into the arm without the metal coming into contact with the arm, and the work on the pillar can be performed easily and quickly.

Furthermore, if the mounting bolts are not upright, that is, if the mounting work is not completed while the mounting brackets are temporarily supported (inserted into the arm), the mounting bolts are projected to the side. Therefore, the tilting state can be visually confirmed by a worker on the ground, and forgetting to attach the mounting bolt is prevented.

[Brief description of the drawings]

1 to 8 show a first embodiment of the mounting device of the present invention. FIG. 1 is a partially cut-away side view when the device is mounted on a pole of a utility pole, and FIG. FIG. 3 is a bottom view, FIG. 4 is a rear view thereof, FIG. 5 is a plan view of an upper mounting bracket, FIG. 6 is a bottom view of a lower mounting bracket, and FIG. Partial top view showing the extension of the mounting bracket,
FIG. 8 is a side view of the mounting bolt detached from the mounting hole of the upper mounting bracket, and FIGS. 9 and 10 show a second embodiment of the present invention. FIG. FIG. 10 (A) is a partial plan view showing the relationship between the upper mounting bracket and the mounting bolt, and FIG.
FIG. 10 (B) is a partial front view of the same. FIG. 11 is a side view showing the state of use of the conventional structure. (A): Mounting bracket device, 1, 2 ... Upper and lower mounting brackets, 1a,
2a: Front piece, 1b, 2b: Rear piece, 1c, 2d: Mounting hole, 2c
…… Extension piece, 4 …… Arm mounting part, 6… Bolt, 10
...... Electrical equipment for poles

Claims (1)

(57) [Scope of request for utility model registration] An upper and lower mounting bracket (1),
By (2), a U-shaped arm attachment portion (4) having a rear end opening is formed, and the front piece (1) of the attachment (1) (2) is formed.
Attach the pole electrical device (10) to (a) and (2a) and form bolt mounting holes in the rear pieces (1b) and (2b) of both mounting brackets (1) and (2), and insert them between them. In the one through which the mounting bolt (6) is inserted, the bolt mounting hole (1c) formed in the upper mounting bracket (1) is formed as an elongated hole that opens to the side or rear of the upper mounting bracket (1). Further, at the rear end of the lower mounting bracket (2), an extension piece (2c) is formed which is bent rearward and downward from the rear end (1b ') of the upper mounting bracket (1). The extending direction of the extension piece (2c) is such that the bolt mounting hole (2d) formed in the lower mounting bracket (2) can be tilted obliquely downward at least over 90 ° from the upright state. A mounting device for electrical equipment for poles, characterized in that it has a long hole extending over a length.