JPH0451371Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a structure for attaching an insulator to a support member.

(Prior art) Conventionally, in order to attach an insulator to a support member such as a cross arm, a bolt protruding from the insulator is passed through a through hole in the support member and a nut is tightened at the protruding end to fix the insulator. Bolts are passed through the holes in the metal fittings and holes drilled in the upper and lower surfaces of the arms, etc., and then tightened and fixed with nuts.

(Problems to be Solved by the Invention) However, in these cases, it is necessary to pass the bolt through the support member while holding the insulator, or to pass the bolt while aligning the hole in the insulator with the hole in the support member. The cross arms that serve as supporting members are usually made of hollow rectangular tubes, and in this case, holes are bored on each side of the opposite cross arms, so the bolts passed through the insulators are inserted into each side of the cross arms. It is not easy to insert the bolts into the holes, and it is very difficult to pass the bolts through each hole on the opposite side, especially if the arms are slanted.

Furthermore, as the insulators become larger, they become heavier, and the installation of insulators becomes extremely complicated, as the work often requires difficult footing on pillars.

Therefore, there is a need for an insulator that can be easily installed.

(Means for solving the problem) Therefore, this idea is to provide a key-shaped hook protruding from a hole of a certain width from a hole drilled in a mounting member protruding from an insulator, and to support this insulator, a diagonally inclined hollow shape is provided. A hole for locking this hook is bored in the support member of the insulator, and a guide and a reinforcing cylinder are passed between each hole on the opposing surface to overlap with the insulator mounting member and pass the bolt, and the insulator is fixed.

The specific structure of this idea is to overlap a mounting member protruding from the insulator with an obliquely inclined hollow support member, and then tighten a nut with the end of a bolt that passes through them to secure the insulator to the support member. A key-shaped hook is provided at a position of a certain width from the bolt through hole of the mounting member,
Holes are formed at mutually corresponding positions on the surface of the supporting member that overlaps with the mounting member and the surface that faces this surface, and from the surface of this overlap, the width of the bolt through hole of the mounting member and the hook is determined. A locking hole was drilled at a location with the same width, and the diameter of the hole on the overlapping surface was made larger than the hole on the opposing surface, so that one end widened in a ragged shape between the hole on the overlapping surface and the hole on the opposing surface. The cylindrical body is connected and fixed.

(Function) To attach this insulator to a support member, hook the hook of the insulator attachment member into the locking hole of the support member, and place the attachment member overlappingly on the support member.
Thereby, the insulator is supported by the support member. Since the positions of the bolt through holes of the insulator mounting member and the holes of the overlapping surface of the support member are aligned in advance, the hooks are hooked into the locking holes of the support member as described above, and the mounting member is overlapped with the support member. These holes match up, and the bolt is passed through from above. In this case, the supporting member is hollow, but since a cylinder is connected between the hole in the overlapping surface and the hole in the opposing surface, the bolt passes through this cylinder and its end is attached to the opposing surface of the supporting member. The part protrudes easily, and the nut is screwed onto the end of this bolt and tightened. Thereby, the insulator is supported and fixed to the support member. Furthermore, in order to facilitate insertion of the hook of the mounting member into the locking hole of the support member, the locking hole is usually made larger. In that case, when the hook of the mounting member is hooked into the locking hole of the support member and the mounting member is stacked on the support member, there is a risk that the bolt through hole of the mounting member and the hole of the overlapping surface of the support member may not be aligned. However, in consideration of this case, the hole in the overlapping surface is made large in diameter, and one end of the cylinder is widened to match this, so when inserting the bolt into the cylinder from above the mounting member, the bolt The end is guided by the hole in the overlapping surface of the support member and the opening of the cylinder, and is easily penetrated to the hole in the opposing surface facing the overlapping surface of the support member.

(Example) An example of this invention will be described below with reference to the drawings.
A flat plate-shaped mounting member 2 is provided at the bottom of the insulator 1, and this mounting member 2 protrudes from one side of the insulator 1 at right angles to the axial direction of the insulator 1. It has a bolt through hole 3. Further, a downward key-shaped hook 4 is provided at the projecting end of the mounting member 2, and this hook 4 projects on an extension surface of the bottom surface 2a of the mounting member 2.

The support member 5 that supports the insulator 1 is an arm 6
It is supported by bolting one end to the
It is bent into a horizontal key shape. The support member 5 is hollow and has upper, lower, left and right side surfaces, and the upper and lower side plates at the bent ends are parallel to each other and are inclined downward to form an inclined upper side plate 5a and an inclined lower side plate 5b.
A large-diameter hole 7 is bored in the inclined upper plate 5a, and a small-diameter hole 8 is bored in the inclined lower plate 5b at a position opposite to this hole 7. Further, a rectangular locking hole 9 is bored in the inclined upper side plate 5a, and the distance between this locking hole 9 and the hole 7 is equal to the distance between the bolt through hole 3 of the mounting member 2 of the insulator 1 and the hook 4. is the same as
A cylindrical body 10 having openings at both ends aligned with the holes 7 and 8, respectively, is fixed between the inclined upper side plate 5a and the inclined lower side plate 5b. Therefore, the end of this cylindrical body 10 in contact with the large-diameter hole 7 is flared.

In this embodiment, to attach the insulator 1 to the support member 5, insert the hook 4 of the insulator 1 into the locking hole 9 of the support member 5, hook it on the edge of the locking hole 9, and then install the insulator 1. The bottom surface 2a of the member 2 is superimposed on the inclined upper side plate 5a, and the mounting member 2 of the insulator 1 is attached.
is placed on the support member 5. As a result, the insulator 1 is locked and fixed. Therefore, separately prepared bolt 11
The bolt 11 is passed through the bolt through hole 3 of the mounting member 2, and further into the hole 7 of the support member 5, and the end of the bolt 11 protrudes from the through hole 8 through the inside of the cylinder 10.
2 and tighten this nut 12. As a result, the insulator 1 is supported and fixed to the support member 5.

(Effect of the invention) This invention has the above-mentioned structure. A hook is provided on the mounting member provided on the main body of the insulator, and this hook is hooked into the locking hole of the support member, and the bottom surface of the mounting member is overlapped with the support member. By doing so, the insulator is positioned and temporarily fixed to the support member. Therefore, the operator only needs to temporarily fix the insulator, and since the bolt through holes in the insulator mounting member and the holes in the overlapping surface of the support member coincide with each other, the bolts can be easily passed through these holes. Thereafter, a nut may be tightened on the end of the bolt to secure the insulator to the support member. Therefore, a worker can easily attach the insulator to the support member even in a high place such as on a pillar. Furthermore, when the hook is hooked into the locking groove, even if the bolt through hole of the mounting member and the cylindrical body of the supporting member are slightly misaligned, the hole in the overlapping surface of the supporting member has a large diameter, and the cylindrical body Since one end of the body is flared, the bolt passing through the bolt through hole of the mounting member is guided by these and enters the cylindrical body, whereby the insulator is slid into a predetermined position and fixed. Furthermore, even if the support member is hollow, this invention provides a cylindrical body from the surface of the support member that overlaps with the mounting member to the surface that faces this, so the bolt can easily pass through these surfaces. Moreover, since the hollow support member is reinforced by the cylindrical body even if it is strongly tightened with a nut, both sides of the hollow support member will not be dented.

As described above, this invention makes it possible to attach the insulator to the support member extremely easily and safely.

[Brief explanation of drawings]

Figure 1 is a side view of the insulator of this invention attached to a support member, Figure 2 is an enlarged partial cross-sectional side view of the same main part, Figure 3 is a bottom view of the insulator of this invention, and Figure 4 is the insulator of this invention. FIG. 5 is a front view of the support member, FIG. 5 is a plan view thereof, and FIG. 6 is a sectional view taken along the line A--A in FIG. 4. In the figure, 1 is a peeler, 2 is a mounting member, 3 is a bolt through hole, 4 is a hook, 5 is a support member, 7 is a hole,
8 is a hole, 9 is a locking hole, 10 is a cylinder, and 12 is a nut.

Claims (1)

[Scope of utility model registration request] A mounting member protruding from an insulator and an obliquely inclined hollow support member are overlapped and a nut is tightened at the end of a bolt passing through these, and the insulator is fixed to the support member, wherein the bolt of the mounting member is A key-shaped hook is provided protruding from the through hole at a position of a certain width, and holes are bored at mutually corresponding positions on the surface of the support member that overlaps with the mounting member and the surface opposite to this surface, and this overlap Drill a locking hole from the hole in the surface at a location with the same width as the bolt through hole of the mounting member and the hook, and then make the hole in the overlapping surface larger in diameter than the hole in the opposing surface. An insulator mounting structure characterized by connecting and fixing a piece with one end widened in the shape of a flap between a hole and a hole on the opposing surface.