JPH099429A - Pole switch fixture - Google Patents

Abstract

PURPOSE: To stabilize the fastening of a nut by making the angle obtuse between the base and the bend of each hanging bolt set in the through holes made at the left end and the right end of both supporting plates in the right and left direction erected at the front and rear of a pole switch. CONSTITUTION: A total of four through holes are made at the left end and right end of supporting plates 9 and 10 erected at an on-pole switch 1. The bend 14 of the hanging bolt 12 is set in the through hole, and it is provided with a slip stop means 15. The bottom of an arm 17 abut both supporting plates 9 and 10, and the tops of the hanging bolts 12 are set in the through holes at both ends of the press plate 18, and the press plate 19 abuts on the topside of the arm 17, and a nut 19 is screwed on the thread part 16 of the top of the hanging bolt 12. The angle made between the base 13 and the bend 14 of the hanging bolt 12 is made obtuse where 90 deg. is added to the angle made by the axis of the bend 14 and a horizontal, and the base 13 is positioned in vertical direction. Hereby, the fastening of the nut can be stabilized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pole switch fixing device for stably mounting a pole switch on a wire arm provided on a telephone pole.

[0002]

2. Description of the Prior Art A conventional pole switch fixing device will be described with reference to FIGS. FIG. 4 is a left side view, FIG.
4 is an enlarged view of a part of FIG. 4, in which 1
Is a pole switch, 2 is an operating part at the rear of the switch 1, 3 is an operating handle provided on the rear surface of the operating part, 4 is a blocking part at the front of the switch 1, and 5 is both sides of the blocking part 4. Three insulators are provided on each surface, 6 is a main circuit terminal led to the tip of the insulator 5, and 7 is an indicator provided on the front surface of the breaker 4, which indicates whether the switch 1 is turned on or off. To do.

Reference numeral 8 is a partition plate in the left-right direction that partitions the operation portion 2 and the blocking portion 4, 9 is a support plate extending upward from the central portion of the partition plate 10, and 10 is an upper surface of the blocking portion 4. An upright left and right support plate, 11 is a through hole formed at the left and right ends of both support plates 9 and 10, and 12 is a hanging bolt, which is lower than the long base 13. The bent portions 14 are bent 90 degrees, and the bent portions 14 are inserted into the through holes 11, respectively.

Reference numeral 15 denotes a retaining means formed by pressing the tip of the bent portion 14 of the suspension bolt 12 and having a diameter larger than that of the through hole 11 to prevent the bent portion 14 from deviating from the through hole 11. are doing. Reference numeral 16 is a threaded portion formed on the upper end of the hanging bolt 12.

Reference numeral 17 is a front-and-rear armpiece provided on the pole of a utility pole (not shown), and the left and right suspension bolts 1 at the front part.
It is inserted between 2 and the left and right suspension bolts 12 at the rear,
The lower surface is in contact with both support plates 9 and 10. Reference numeral 18 designates front and rear presser plates, and through holes formed at both ends of both presser plates 18, front left and right suspension bolts 12 and rear left and right suspension bolts 12 upper end parts are formed. Are inserted respectively,
The lower surface of both pressing plates 18 is in contact with the upper surface of the arm member 17.
Reference numeral 19 denotes a nut screwed with the threaded portion 16 at the upper end of the suspension bolt 12, and is in contact with the holding plate 18.

Then, by tightening the nut 19, the switch 1 is hung and fixed to the arm member 17, but at this time, the hanging bolt 12 of the supporting bolt 9 and the supporting plate 9 is different from the diameter of the through hole 11. Since the diameter is small, the bent portion 14 has the lower end edge of the through hole 11 on one surface of the supporting plates 9 and 10 and the supporting plate 9,
10 is in contact with the upper end edge of the through hole 11 on the other side, the axis of the bent portion 14 forms an angle with the horizontal line, the base portion 13 is not positioned in the vertical direction, and it is between the nut 19 and the holding plate 18. There is a gap.

Next, another conventional example will be described with reference to FIG. FIG. 6 is a left side view, and FIG.
The same reference numerals as those in FIG. 5 denote the same or corresponding ones, and the different points are as follows.

Reference numeral 20 denotes a boss welded to the peripheral portions of the through holes 11 of the support plates 9 and 10, and 21 is formed on the boss 20.
1 is a through hole, and the bent portion 14 of the hanging bolt 12 is inserted into the through holes 11 and 21. Reference numeral 22 is a retaining means composed of a pin penetrating the tip of the bent portion 14 of the suspension bolt 12. In the conventional example shown in FIG. 6, the angle formed by the axis of the bent portion 14 and the horizontal line is small, and the base portion 13 is positioned substantially vertically.

[0009]

In the case of the conventional pole-top switch fixing device shown in FIGS. 4 and 5, the base portion 13 is not positioned in the vertical direction, and there is a gap between the nut 19 and the holding plate 18. Occurs, and the tightening of the nut 19 becomes unstable.

Further, in the case of the conventional example shown in FIG. 6, although the tightening of the nut 19 is stable, the boss 20 is attached to the support plates 9 and 1.
However, there is a problem in that the apparatus is expensive because it needs to be welded to zero.

In consideration of the above points, the present invention provides a pole switch fixing device in which no clearance is created between the nut and the pressing plate, the tightening of the nut is stable, and the cost is low. The purpose is to

[0012]

In order to solve the above-mentioned problems, a pole-mounted switch fixing device of the present invention comprises a support plate in the left-right direction which is erected on the front and rear of the pole-mounted switch, Through holes formed at the left and right ends of the support plate, suspension bolts with lower bent portions inserted into the respective through holes with respect to the long base, and deviations of the bent portions from the through holes The retaining means for prevention, the threaded portion formed at the upper end of the suspension bolt, the front left and right suspension bolts, and the rear left and right suspension bolts are inserted, and the lower surface is the both support plates. The front and rear arm bolts on the pillar that came into contact with the pillar, and the upper ends of the front left and right suspension bolts and the rear left and right suspension bolts are inserted through the through holes on both ends, respectively, on the upper surface of the armature. A column switchgear equipped with front and rear presser plates that abut, and nuts that are screwed into each screw part and abut the presser plate. In the device, the angle formed by the base portion and the bent portion of each hanging bolt is such that the bent portion is the lower edge of the through hole on one surface of the support plate and the upper edge of the through hole on the other surface of the support plate. In the state of being in contact with each other, the angle formed by the axis of the bent portion and the horizontal line and the obtuse angle are added to each other to form an obtuse angle.

[0013]

In the pole switch fixing device of the present invention constructed as described above, the through holes are provided at the left end and the right end of the left and right support plates erected on the front and rear of the pole switch. The bent portion on the lower side of the elongated base of the suspension bolt is inserted through the through hole, and the bent portion is provided with a retaining means for preventing the deviation from the through hole. Are inserted between the left and right suspension bolts on the front part and between the left and right suspension bolts on the rear part, the lower surface of the armrest is in contact with both support plates, and the through holes at both ends of the front and rear presser plates are inserted. The left and right suspension bolts at the front and the upper ends of the left and right suspension bolts at the rear are inserted into the upper part of the arm, the presser plate contacts the upper surface of the arm, and the nuts are attached to the threads on the upper end of the suspension bolt. The screwing, the nut abuts the holding plate, and the angle between the base of the hanging bolt and the bent portion is defined by the bent portion on one side of the support plate. With the bottom edge of the through hole and the upper edge of the through hole on the other surface of the support plate in contact with each other, the angle formed by the axis of the bent part and the horizontal line was made an obtuse angle by adding 90 degrees, so that the base was vertical. Located in the direction, there is no gap between the nut and the pressing plate, the tightening of the nut is stable, and the cost of the device is low.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. 1 is a left side view, FIG. 2 is a front view, and FIG. 3 is an enlarged cross-sectional view of a part of FIG. 1. In these drawings, the same reference numerals as those in FIG. 4 and FIG. The difference is that the base portion 13 and the bent portion 14 of the hanging bolt 12 are different.
With the bent portion 14 in contact with the lower edge of the through hole 11 on one surface of the support plates 9 and 10 and the upper edge of the through hole 11 on the other surface of the support plates 9 and 10, respectively. That is, the angle between the axis of the bent portion 14 and the horizontal line is 90 degrees plus an obtuse angle, and the base portion 13 is located in the vertical direction.

Then, for example, the plate thickness of the support plates 9 and 10 is 4.5 mm, and the diameter of the through hole 11 of the support plates 9 and 10 is 17.5.
mm, the diameter of the hanging bolt 12 is 16 mm, the angle between the axis of the bent portion 14 and the horizontal line of the hanging bolt 12 shown in FIG. 3 is 15 degrees, and the angle between the bent portion 14 and the base 13 is θ
If the angle is 105 degrees, the base portion 13 is positioned in the vertical direction, no gap is created between the nut 19 and the holding plate 18, and the tightening is stable.

[0016]

Since the present invention is configured as described above, it has the following effects. In the pole switch fixing device of the present invention, the angle formed by the base portion 13 and the bent portion 14 of the hanging bolt 12 is such that the bent portion 14 has a lower end edge of the through hole 11 on one surface of the support plates 9 and 10 and its support. The bent portion 1 is in contact with the upper edges of the through holes 11 on the other surfaces of the plates 9 and 10, respectively.
Since the angle formed by the axis of 4 and the horizontal line is 90 degrees plus an obtuse angle, the base portion 13 is positioned in the vertical direction, and there is no gap between the nut 19 and the holding plate 18.
Tightening is stable, and the cost of the device can be reduced.

[Brief description of drawings]

FIG. 1 is a left side view of an embodiment of the present invention.

FIG. 2 is a front view of an embodiment of the present invention.

3 is an enlarged cross-sectional view of a part of FIG.

FIG. 4 is a left side view of a conventional example.

FIG. 5 is an enlarged view of a part of FIG. 4;

FIG. 6 is a left side view of another conventional example.

[Explanation of symbols]

 1 Pillar Switch 9 Support Plate 10 Support Plate 11 Through Hole 12 Hanging Bolt 13 Base Part 14 Bent Part 15 Detachment Means 16 Screw Part 17 Bracket 18 Holding Plate 19 Nut

Claims (1)

[Claims] 1. A support plate extending in the left-right direction at the front and rear of the pole switch, through holes formed at the left and right ends of the support plates, and a long base. Hanging bolts, each of which has a lower bent portion inserted into each of the through holes, retaining means for preventing deviation of the bent portion from the through hole, and a screw formed on an upper end portion of the hanging bolt. And a front-to-back armrest on the pillar that is inserted between the left and right suspension bolts in the front part and between the left and right suspension bolts in the rear part, and the lower surface of which is in contact with the support plates. , The upper ends of the left and right suspension bolts of the front portion and the left and right suspension bolts of the rear portion are respectively inserted into the through holes of both ends, and the front and rear portions of the front portion and the rear portion which are in contact with the upper surface of the arm member are inserted. Pole switch fixing device including a holding plate and a nut that is screwed into each of the screw parts and abuts on the holding plate. In the above, the angle formed by the base portion and the bent portion of each of the hanging bolts is defined by the bent portion of the lower end edge of the through hole on one surface of the support plate and the through hole on the other surface of the support plate. The angle between the axis of the bent portion and the horizontal line is 90 ° with the upper edge abutting.
An obtuse-angled pole switch fixing device with a degree added.