JPH06248862A - Cover of stepping bolt for electric pole - Google Patents

Abstract

PURPOSE:To prevent an electric shock accident from happening to a worker who climbs an electric pole and touches an electrified part. CONSTITUTION:A hollow cylindrical cover body 5 through which the shank 2 of a stepping bolt 1 is inserted is formed to expose a specified length of threaded part which is provided at the tip of the shank 2 of the stepping bolt 1, and at the other end of The cover body 5 has at its one end a recess 7 that receives the head 3 of the stepping bolt 1. The bottom of the recess 7 is communicating with the inside of the hollow of the cover body 5. At the inside wall of the recess 7, protrusions 8 and 8 are provided to fix the head 3 of the stepping bolt 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding bolt cover to be attached to a scaffolding bolt provided on the outer surface of a utility pole.

[0002]

2. Description of the Related Art Conventionally, scaffolding bolts are attached to the utility pole at equal intervals alternately on the right and left side surfaces of the utility pole facing each other so that an operator can easily climb the pillar.

[0003]

Generally, all such scaffolding bolts have the same shape and the same color. In order to pay attention to the feet of the operator when he climbs the pillar, he forgets that he has approached the electric wires installed on the upper part of the utility pole and the charged parts of the pole equipment. May cause electric shock. Therefore, an object of the present invention is to provide a scaffolding bolt cover for electric poles that can solve such problems.

[0004]

A scaffolding bolt cover for a utility pole according to the present invention has a hollow cylindrical cover body through which a shaft portion of a scaffolding bolt is inserted, and a screw portion provided at a tip of the shaft portion has a required length. It is formed to have an exposed length, and a concave hole portion for accommodating the head of a scaffold bolt is continuously provided at one end of the cover body, and the bottom surface of the concave hole portion and the hollow interior of the cover body are communicated with each other. Further, a projection for fixing the head of the scaffolding bolt is provided opposite to the facing surface of the inner wall of the recessed hole portion. In addition, the outer surfaces of the cover body and the recessed hole are formed in a color different from that of the scaffolding bolt.

[0005]

[Operation] The shaft portion of the scaffolding bolt is inserted through the recessed hole portion of the cover body, and is further tapped into the recessed hole portion of the head portion of the scaffolding bolt to accommodate it, and the tightening nut is attached to the screw portion exposed from the tip of the cover body. Screw together. Then, the threaded portion of the scaffolding bolt thus covered with the cover is screwed into the receiving nut of the mounting member mounted on the outer surface of the utility pole, and the fastening nut is tightened and fixed to the mounting member.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, reference numeral 1 denotes a scaffolding bolt for a utility pole. The scaffolding bolt 1 is provided with a flat hexagonal head 3 at a base end of a shaft portion 2 having a required length, and a required length at a tip of the shaft portion 2. The threaded portion 4 is formed.

Reference numeral 5 denotes a hollow cylindrical cover body through which the shaft portion 2 is inserted. The cover body 5 is formed to have a length such that the threaded portion 4 at the tip of the shaft portion 2 is exposed by a required length, and the outer surface thereof. The non-slip ribs 6 are provided in a mesh shape. Then, a concave hole portion 7 for accommodating the head portion 3 of the scaffolding bolt 1 is continuously provided at one longitudinal end of the cover body 5, and the bottom surface of the concave hole portion 7 and the hollow inside of the cover body 5 are communicated with each other. . The recessed hole 7 is formed in a flat hexagonal shape having a size such that the housed head 3 does not rotate, and the housed head 3 is housed on the opposite surface of the inner wall thereof.
The projections 8, 8 that prevent the removal of the
It is integrally formed with a synthetic resin material.

Then, the shaft portion 2 of the scaffolding bolt 1 is inserted from the recessed hole portion 7 into the cover body 5, the head 3 is struck in the recessed hole portion 7, and the protrusions 8 and 8 prevent the head portion 3 from coming off. 9 is a tightening nut,
The tightening nut 9 is screwed onto the threaded portion 4 exposed from the tip of the cover body 5 as shown in FIG.

On the other hand, reference numeral 10 is a mounting metal fitting which is mounted at a predetermined position on the outer surface of the steel pipe column P, and a through hole 12 is provided at the center of a receiving portion 11 formed in a side U shape so as to communicate with the through hole 12. The receiving nut 13 is fixedly installed in the receiving portion 11, and the mounting pieces 14 and 14 formed by bending the both ends of the receiving portion 11 are attached to the steel pipe column P.
Fixed by welding or the like. As shown in FIG. 1, the mounting brackets 10 formed in this manner are mounted on the opposite left and right side surfaces of the outer surface of the steel pipe pillar P alternately at different heights and at equal intervals. Of the mounting brackets 10 mounted on the steel pipe pillar P in this manner, the scaffolding bolt 1 is excluded except for those on the left and right respectively near the top.
The scaffold bolt 1 is attached to the steel pipe column P by screwing the threaded portion 4 of the above into the receiving nut 13.

As shown in FIG. 3, the scaffolding bolts 1 attached to the cover body 5 of the scaffolding bolts 1 attached to the right and left sides of the steel pipe pillar P are covered with the cover body 5 as shown in FIG. The tightening nut 9 is screwed into the threaded portion 4, the threaded portion 4 of the scaffolding bolt 1 is screwed into the receiving nut 13 of the mounting bracket 10, and finally the tightening nut 9 is tightened into pressure contact with the receiving portion 11. And attach as shown in Fig. 4. The scaffold bolts 1 attached to the left and right sides of the steel pipe pillar P respectively near the top of the steel pipe pillar P have a large diameter because they are covered with the cover body 5, and it is sensuous that the scaffold bolt 1 climbs to the top of the utility pole in the grip. You can see it, and you can tell it at a glance.

FIG. 5 shows an example of use in a concrete utility pole. A scaffold in which the cover body 5 shown in FIG. 3 is attached to the thread groove 15 of the mounting member 16 embedded in the concrete utility pole P'during the pole making. The threaded portion 4 of the bolt 1 is screwed and mounted for use.

Further, since the cover body 5 and the recessed hole portion 7 are formed by coloring the scaffolding bolt 1 in a color different from that of the scaffolding bolt 1, the scaffolding bolt 1 can be clearly distinguished from the other scaffolding bolts by the difference in color.

[0013]

As described above, the scaffolding bolt cover for utility poles of the present invention is mounted on the left and right side of the mounting members mounted on the utility poles near the uppermost part, respectively, and used.
Even if you don't pay special attention when you climb a pillar, you can sensuously know that you climbed to the top of the utility pole by the thickness when you grasp it with your hand, its shape, and the color difference of colored ones. In addition, it is possible to prevent an electric shock accident or the like caused by contact with a power pole installed on the upper part of the power pole or a charged portion of the pole equipment.

[Brief description of drawings]

FIG. 1 is a front view of a usage state of a scaffolding bolt cover for a utility pole of the present invention in a steel pipe column.

FIG. 2 is an exploded perspective view.

FIG. 3 is a perspective view of a scaffolding bolt with a cover attached thereto.

FIG. 4 is a cross-sectional view of a main part of FIG.

FIG. 5 is a cross-sectional view of another embodiment showing a usage state on a concrete utility pole.

[Explanation of symbols]

 1 Scaffolding bolt 2 Shaft part 3 Head part 4 Screw part 5 Cover body 7 Recessed hole part 8, 8 Protrusion

Claims (4)

[Claims] 1. A hollow cylindrical cover body through which a shaft portion of a scaffolding bolt is inserted is formed in a length such that a screw portion provided at a tip of the shaft portion is exposed to a required length, and one of the cover body is provided. A scaffolding bolt cover for electric poles, characterized in that a recessed hole portion for accommodating a head portion of a scaffolding bolt is continuously provided at an end, and a bottom surface of the recessed hole portion and a hollow inside of a cover body are communicated with each other. 2. The scaffolding bolt cover for a utility pole according to claim 1, wherein a projection for fixing the head of the scaffolding bolt is provided opposite to the inner wall of the recessed hole communicating with the cover body. 3. The scaffolding bolt cover for a utility pole according to claim 1, wherein an anti-slip rib is provided on the outer surface of the cover body. 4. The scaffolding bolt cover for a utility pole according to claim 1, wherein the outer surfaces of the cover body and the recessed hole are formed in a color different from that of the scaffolding bolt.