JPH0241276Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a leg for a utility pole, etc., which serves as a handle or scaffold used for the connection of electric wires, cables, etc., installation including terminal processing, maintenance, repair, and removal. It is related to hand fittings.

[Conventional technology]

Conventionally, for the spatial installation and maintenance and repair of electric wires or cables on the poles of power distribution and communication lines, it was necessary to use the leg bolts used for lifting and lowering, which are inserted into utility poles and towers as scaffolding bolts, as they are, or to use ones with the same shape. Work is being carried out on the insertion pole. That is, when working on a pole, it is known to support the worker's body with a safety belt and permanently install scaffolding bolts as leg rests.

[The problem that the idea aims to solve]

In this conventional scaffold bolt, in order to alleviate fatigue during work, the leg metal fittings that are permanently installed at the exact position of the worker's feet on the pillar have a foot rest surface that is shaped like a bolt with a circular cross section and the shape of the bolt. Because shaped metal fittings and U-shaped rods were attached to one side of the bolt, and scaffolding bolts with a square cross section were used, the area of the footrest was small and the soles of the workers' feet became extremely fatigued, making it difficult for workers to endure long hours of work with severe pain. There were times when they could not be seen, and there were times when they were a nuisance, which posed an undesirable problem in terms of safety management.

The present invention eliminates these conventional drawbacks, significantly reduces operator fatigue, enables safe work even for long periods of time, and has a simple and inexpensive construction of leg and hand fittings that can be removed if they get in the way. We are trying to provide it in a suitable format.

[Means to solve the problem]

In the present invention, a support rod 1 is provided with a screw portion 11 that is screwed onto a pole such as a utility pole, and a head 13 at the other end, and a ring-shaped or flat plate 2 for receiving a worker's feet is attached to the support rod 1. In a leg metal fitting that protrudes from both sides of the support rod and is fixedly or detachably provided, the plate 2 is provided on the support rod 1 eccentrically from the center of the support rod 1 along the axial direction of the support rod 1, and This is a leg fitting for a telephone pole, etc., characterized by having a detachable part 5 for clamping, coupling and separating.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2. The support rod 1 is a bolt with a square cross section having a threaded portion 11 at the other end, and a plate-shaped bolt between the bolt head 13 and the threaded portion 11. Alternatively, a detachable portion 5 is provided so that the annular plate 2 can be attached and detached, but the plate 2 is provided on the support rod 1 eccentrically from the center of the support rod 1 along the axis of the support rod. , the plate 2 has a wide-area contact plane provided with an anti-slip elastic coating layer 4 at a position distant from the support rod 1.

For example, when installed on a utility pole, the support rod 1 is screwed into a screw hole drilled in the utility pole, and the plate 2 is attached to form an inclined surface at an appropriate angle.

In this case, the detachable portion 5 includes an arm member 5 ₂ provided so that the plate 2 can be attached to the support rod 1 at an angle, a lever member 5 1 connected to the arm member 5 ₂ by a pivot 9, and both members 5. A removable piece 6 capable of holding the support rod 1 between ₁ and 5 ₂ and fixing both members 5 ₁ and 5 ₂
It consists of

That is, the removal piece 6 is inserted into the lever member 5 ₁ so as to be prevented from falling off by a stopper 8 , and the threaded portion at the end thereof is screwed into the threaded hole 10 of the arm member 5 ₂ .

The examples in FIGS. 3 and 4 are modifications of the previous embodiment, in which the plate 2 has an elastic coating layer 3 on its surface, and the lever member 5 ₁ on the arm member 5 ₂ is a retractable piece. In this case, the lever member 5 ₁ and the removal piece 6 can be separated from the arm member 5 ₂ , but the removal piece 6 such as a bolt
The detachable piece 6 is always maintained in the connected state with the fourth
The plate 2 can be fixed to the support rod 1 by tightening as shown in the figure, and the lever member 5 ₁ can be secured by loosening the removal piece 6 slightly.
It is also possible to remove plate 2 from support rod 1 by rotating it 180 degrees.

In these examples, the support rod 1 and plate 2 can be separated for transport, storage, installation, and removal;
In the example shown in FIG. 4, the plate 2 can be attached and removed from the direction perpendicular to the support rod 1, so it can be attached to the existing support rod 1.

In the figure, 7 is a spring washer, 12 is a nut, 13 is a bolt head, and ₅₃ is a support rod receiving projection.

In addition, in order to make the contact area wider than support rod 1,
In the figure or similar example, this includes cases where the contact area of only plate 2 is actually large, as well as cases where the area surrounded or sandwiched by plate 2 is also wide, and includes support rod 1 or support rod 1. A footrest surface is formed by a plate 2 on the top.

[Effect of idea]

In this invention, a ring-shaped or flat plate for receiving a worker's feet is protruded from the width of the support rod on both sides of the support rod, which has a threaded part that is screwed onto a pole such as a utility pole and a head at the other end. In the leg and hand fittings, the plate is provided on the support rod eccentrically from the center of the support rod along the axial direction of the support rod, and the plate is provided with a detachable part that can be held and separated from the support rod. As a result, when the foot is rested, the footrest has a wide area, reducing fatigue on the sole of the foot, and the center of rotation due to the force applied to both ends of the plate is eccentric from the center of the support rod, and because it is far away, the support rod does not rotate unnecessarily. It is extremely safe and will not come loose, and since the foot support surface of the scaffolding plate is placed separately on the support rod in an overlapping state, the connection is strong, safe, and stable. The head of the rod is also located further down than the top surface of the plate, so the sole of the shoe does not come into direct contact with the head of the rod, and work can be done without the problem of the rod loosening and becoming dangerous. It is possible to provide a leg and hand fitting that can support a worker in a comfortable state while working on a utility pole and improve the efficiency of work, and has great practical effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a cross-sectional view taken along the line of FIG. 1, FIG. 3 is a front view of another embodiment, and FIG. 4 is a cross-sectional view taken along the line of FIG. FIG. DESCRIPTION OF SYMBOLS 1... Support rod, 2... Plate, 3... Elastic coating layer, 4... Rubber plate, 5... Detachable part, 5 ₁ ... Lever member, 5 ₂ ... Arm member, 6... Removable piece. .

Claims (1)

[Claims for Utility Model Registration] (1) An annular or flat plate that receives the feet of a worker on a support rod 1 that has a threaded portion 11 that is screwed onto a pole such as a telephone pole and a head 13 at the other end. 2 protrudes from the width of the support rod 1 on both sides and is removably provided, in which the plate 2 is provided on the support rod 1 eccentrically from the center of the support rod 1 along the axial direction of the support rod 1; A leg fitting for a utility pole or the like, characterized in that the plate 2 is provided with an attachment/detachment part 5 which can be clamped and connected to and separated from the support rod 1. (2) The detachable portion 5 is one in which a lever member ₅₁ is connected to an arm member ₅₂ provided on the plate 2 by a pivot portion 9, and the lever member ₅₁ is provided with a detachable piece 6. Scope of a certain utility model registration claim No. 1
Leg and hand fittings listed in section.