JPH084664Y2 - Switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a switch, and more particularly to an overhead wire switch having an attachment mechanism capable of preventing damage to the upper surface thereof.

[Prior Art] and [Problems to Be Solved] A mounting mechanism as shown in FIGS. 5 and 6 is used to mount a switch on an arm of a utility pole of an overhead power line (hereinafter referred to as a mounting pole). Has been.

In these figures, 1 is a switch main body, 2 is a cover of the switch, and a hanger bolt seat 3 covers the surface of the cover 2 at an appropriate height at the center of the upper part of the cover 2. Two
Of the hanger bolt seat 3, which is installed along the length direction of the hanger bolt seat 3 and has a U-shaped cross section in the lateral direction.
Are fixed in an open form in the upward and lateral directions, and the hanger bolts 5 are attached to the inner ends of the hanger bolt fitting 4.
One end of the hanger bolt 5 is rotatably attached.
At the other end of the hanger plate 6 is the shaft of the hanger bolt 5.
It is mounted so that it can rotate around 50.

Although not shown in the drawing, when mounting the switch, the hanger bolt 5 is set up and the hanger plate 6 is brought into contact with the arm (square rod) of the utility pole to carry out the mounting work.

As described above, in the mounting mechanism, the hanger plate 6 can freely rotate about the shaft 50 of the hanger bolt 5, so that the pillar mounting work of the switch can be performed easily.

However, while the hanger plate 6 is rotatable, which is advantageous for performing the pillar work, the hanger plate 6 is freely rotatable, so that the tip of the hanger plate 6 is the surface of the cover 2 of the switch. However, it was found that the coating on the surface of the cover 2 was damaged and rust was generated on that portion to break the airtightness of the switch and shorten the life of the switch.

Conventionally, in order to prevent this, at the time of shipping the switch, a protective plate is inserted between the hanger bolt seat 3 and the cover 2 so that the hanger plate 6 does not come into contact with the cover 2. Although measures have been taken to avoid the above-mentioned situation by removing the protective plate, the protective plate is often removed in front of the pedestal, and measures that do not rely on the protective plate have been required.

An object of the present invention is to provide a technique capable of solving the drawbacks of the conventional technique.

[Means for Solving the Problems] The present invention for solving the above problems is to attach a hanger bolt to a hanger bolt seat portion on an upper part of a cover with one end of the hanger bolt rotatably attached to the other end of the hanger bolt. The switch is attached so that the hanger plate can be rotated around the axis of the hanger bolt, the hanger bolt is erected, and the switch that is hung on the pillar by the hanger plate has a hanger bolt insertion hole in the center. And
A hanger provided with a groove around the hanger bolt through hole that prevents the tip of the hanger plate from coming into contact with the cover surface and damaging the cover surface and limits the rotation angle of the hanger plate. The switch prevents the cover from being damaged by the hanger plate, wherein the plate rotation angle limiting plate is interposed in the attachment mechanism of the hanger bolt and the hanger plate.

[Operation] In the present invention, when the hanger plate is attached to the hanger bolt, the hanger plate rotation angle limiting plate that can limit the rotation of the hanger plate is interposed. Since it is prevented from hitting, damage to the cover due to the hanger plate can be prevented.

[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS.

A hanger bolt insertion hole 70 for inserting the hanger bolt 5 is formed in the center of the hanger plate rotation angle limiting plate (circular plate) 7, and two rotation angle limiting members are provided around the insertion hole 70. Grooves (through grooves) 71, 71 are provided in the grooves.

At the center of the rear end of the hanger plate 6, the hanger bolt 5
A through hole 60 through which the hole is inserted is provided, and further, two pin insertion holes 61, 61 are provided on both sides of the hole 60 at a distance from each other.

As shown in the assembly view of FIG. 1, the hanger plate rotation angle limiting plate 7 is brought into contact with the rear end portion of the hanger plate 6 to insert the through hole 70 of the hanger plate rotation angle limiting plate 7 and the through hole 60 of the hanger plate 6.
, The hanger bolt 5 is inserted into the rotation angle limiting plate 7, and the pins 8 and 8 are press-fitted into the rotation angle limiting grooves 71 and 71 of the rotation angle limiting plate 7.
Thus, the rotation angle limiting plate 7 is fixed.

The hanger bolt 5 is projected to the opposite side of the hanger plate 6 that comes into contact with the rotation angle limiting plate 7, and the hanger plate 6 is inserted by the hexagon nut 11 via the flat washer 9 and the spring washer 10.
Is rotatably attached to the hanger bolt 5.

As shown in the operation of the hanger plate 6 in FIG. 2, the hanger plate 6 rotates, but the pin 8 and the end of the rotation angle limiting groove 71 provided in the rotation angle limiting plate 7 come into contact with each other. At the contact position, the rotation of the hanger plate 6 is stopped, and the hanger plate 6 is prevented from further rotation.

Therefore, as shown in FIG. 2, the tip of the hanger plate 6 is prevented from hitting the surface of the cover 2, and the surface of the cover 2 is not damaged, and the life of the switch can be extended. it can.

According to the present invention, the surface of the cover 2 can be protected by interposing the hanger plate rotation angle limit (stopper) as described above, but if necessary, further, as shown in FIGS. 4 (a) and 4 (b). As shown in, a covering member 12 made of an elastic material may be attached to the tip of the hanger plate 6.

As described above, according to the present invention, the pillar work of the overhead line switch is facilitated, but when the cover is damaged due to its rotating function, the damage is prevented and the life of the switch is extended. It was possible to provide a technology that is extremely useful for practical purposes.

[Brief description of drawings]

FIG. 1 is an assembly view showing an embodiment of the present invention, FIG. 2 is an explanatory view for explaining the rotation of a hanger plate according to the embodiment of the present invention, FIG. 3 is an embodiment of the present invention, and FIG. ) And (b) are perspective views showing another embodiment of the present invention, FIG. 5 is an explanatory view of a main part of a switch mounting mechanism, and FIG. 6 is a perspective view including the switch mounting mechanism. 1 ... Switch main body 2 ... Switch cover 3 ... Hanger bolt 4 ... Hanger bolt mounting tool 5 ... Hanger bolt 6 ... Hanger plate 7 ... Hanger plate rotation angle limiting plate 8 ... Pin 9 ... … Flat washer 10 …… Spring washer 11 …… Hexagon nut 12 …… Coating member 50 …… Bolt shaft 60 …… Through hole 61 …… Pin insertion hole 70 …… Hanger bolt insertion hole 71 …… Rotation angle limiting groove

Claims (1)

[Scope of utility model registration request] 1. A hanger bolt is rotatably attached to a hanger bolt seat on an upper part of a cover, one end of which is rotatable, and a hanger plate is rotatable on the other end of the hanger bolt about an axis of the hanger bolt. A switch that is attached, stands up the hanger bolt, and hangs on the pillar with the hanger plate, has a hanger bolt insertion hole in the center thereof, and the hanger around the hanger bolt through hole. A hanger plate rotation angle limiting plate, which is provided with a groove capable of preventing the tip portion of the plate from contacting the cover surface and damaging the cover surface and limiting the rotation angle of the hanger plate, A switch which prevents the cover from being damaged by the hanger plate, characterized by being interposed in an attachment mechanism with the hanger plate.