JP2001129105A - Pole safety belt with auxiliary rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a falling accident by preventing the occurrence of the non-connected state of the safety belt (rope) of a pole safety belt to be used in work at high ground. SOLUTION: A main hook engaging hole 3 and an auxiliary hook engaging hole 4 are bored in a D-ring, which is provided with a shielding plate 5. The lid 51 of the plate 5 is always abutted on the hole 4 by biasing of a spring 52. By fitting an auxiliary hook 9 into the hole 4, the lip 51 of the plate 5 is pressed by the hook part 91 of the hook 9 and moved to shield part of the hole 3. Next, as the structure of a main hook 6 to be engaged with the hole 3, a metallic latching 7 projecting against a spring 62 is provided at the hook part 61 of a hook 6. As long as the hook 9 is not removed, the latching 7 of the hook 6 is abutted on the plate 5 to prohibit the hook 6 from being removed from the hole 3. Thus, the hook 9 is approximately forcedly engaged with a step bolt S and erroneous removal is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pole safety belt which is attached to a lumbar region to prevent a fall when an operator goes up and down a telephone pole in construction of a communication line.

[0002]

2. Description of the Related Art Conventionally, when working at a high place, a pole safety belt as shown in FIG. 8 has been used to embrace a telephone pole with a rope connected to one of rings located on both sides of a waist, and a hook at the tip of the rope has been used. It was locked to the other D-ring to maintain the U-shaped posture between the telephone pole and the power pole, and the work was performed with both hands free. Also, when ascending and descending, the rope is turned up and down while avoiding the step bolt while turning the rope on the telephone pole, and even if you slide your hands and feet, the rope turned in a U shape gets caught on the step bolt in the lower position, It prevented the crash. However, if there is an obstacle such as a signboard or a street light during the ascent / descent, and the smooth passage of the U-shaped rope cannot be performed, the engagement of the hook at the end of the rope must be released. For such a time (so as not to be disconnected from the telephone pole), there is a pole-mounted safety belt with an auxiliary rope provided with an auxiliary rope connected to the safety belt. In this situation, the auxiliary rope locks an auxiliary hook provided at the tip end with a step bolt, and then removes the U-shaped rope to remove the signboard,
They moved around the street lights, and when the movement was completed, hooked the U-shaped rope again on the D-ring, then removed the auxiliary hook of the auxiliary rope from the step bolt and moved up and down. Such a pole lifting method has been widely adopted as a safe lifting method in the communication line construction and electric construction industries.

[0003]

The above-described method for ascending and descending the utility pole is used to ascend and descend to a height above the utility pole. However, when it is necessary to remove the rope during the operation at the work position, The auxiliary rope connected to the belt connects the fixed object on the telephone pole, and later the hook of the rope is removed, thereby eliminating the unattached state even for a moment to prevent the fall. If the auxiliary rope is used properly in this way, the unconnected state will be lost and a crash will not occur, but its use is left to the discretion of the worker, in other words, the safety of the worker It was all about consciousness, a safety measure that could not be wiped out of uncertainty due to the mental state of the workers, which varied from day to day and from time to time. Under the circumstances described above, there has been a need for measures to eliminate the crash without greatly changing work standards and equipment. In this application, we will review the work standards that depend on the will of the worker and, based on the assumption that human error will occur at some time, lock the D-ring on the waist of the safety belt during lifting and lowering and work, and make the utility pole a U-shaped The hook at the end of the rope that holds and supports the worker, and the auxiliary hook of the auxiliary rope that is attached to the safety belt as an auxiliary protective means when releasing the holding of the rope are linked. If a lock system is adopted and any hook is not connected to a fixed object on the telephone pole, the problem is solved as a structure that hinders the work itself, which is the original purpose of lifting and lowering the telephone pole.

[0004]

More specifically, a D-ring for locking a hook at the tip of a rope connected to one side of the waist of the safety belt at a position on the other side of the waist is provided with a hook locking hole and an auxiliary hook. The object is achieved by a structure in which a locking plate is provided which is capable of rotating and closing the hook locking hole when the auxiliary hook is locked in the locking hole.
In other words, after the structure such as a utility pole is wound in a U-shape, the hook at the end of the rope is locked in a state where the auxiliary hook is not locked to the D-ring, in other words, the auxiliary rope is locked. This is to eliminate the defenseless state by making it appear only when it is in a state where it is present, and to end the crash disaster. The fact that the rope cannot be locked unless the auxiliary rope is used means that one of the ropes is always used, and the worker is always connected to the building. Further, in order to ensure the system, a hook portion of the hook that is locked in the hook locking hole is provided with a detent-type stopper metal that always projects outward by a spring. The hook locked by the hook locking hole by the stopper metal is prevented from being released by the shielding plate rotated into the hook locking hole by locking of the hook of the auxiliary rope, and the hook of the auxiliary rope is D-ringed. The release is made possible by performing the operation of releasing the lock and locking it to one of them. As described above, in the present application, the problem is solved by the interlock mechanism configured on the premise that the hook of the auxiliary rope is locked to the D-ring.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present application will be described in detail. The D-ring 2 used in the present application is provided with a horizontally elongated main hook locking hole 3 so that the hook 61 of the main hook 6 can be fitted and locked, and the upper part of the locking hole 3 is bent 90 degrees. An auxiliary hook engaging hole 4 is provided in the wall so that the hook 91 of the auxiliary hook 9 can be fitted and locked. The cover portion 51 of the substantially L-shaped shielding plate 5 is always provided with the spring 52 in the auxiliary hook locking hole 4.
When the auxiliary hook 9 is fitted and locked in the auxiliary hook locking hole 4, the cover portion of the shielding plate 5 is provided.
51 is pushed by the hook 91 of the auxiliary hook 9 and moves downward,
The piece bent in a letter shape shields a part of the hook locking hole 3. The hook 6 has a hook 61 at the tip, a rotating portion 63 for attaching a rope at the rear end, a rotatable opening / closing cap 64 for closing the hook, and a rotation of the opening / closing cap 64. Provide a safety cap 65 to control the movement,
Detachment fittings that urge springs 62 to project outside the hooks 61
7 is provided. In the basic mode, the auxiliary hook 9 is locked in the dedicated hole provided in the D-ring 2, but in this state, the lid 51 of the shielding plate 5 is pressed by the hook 91 of the auxiliary hook 9 and pivots downward. Then, a part of the hook locking hole 3 is shielded.
Therefore, the stopper 7 of the hook 6 comes into contact with the shielding plate 5 and cannot be removed. The auxiliary rope 8 shown in the present application is of a winding type, but may be of a conventional three-stroke rope type.

In order to use the safety belt of the present invention as described above, first, the stopper 7 of the main hook 6 is pressed against the spring to avoid abutment with the shielding plate 5 to prevent the main hook 6 from coming into contact with the main body. Release through the locking hole 3. The hook with the hook 6 unlocked is turned to the back of the utility pole, and the hook 6 is again locked in the hook locking hole 3 while holding the utility pole, and the ascending pole is started. If there is a signboard and a street light at a high place as shown in FIG. 7, the auxiliary hook 9 is first removed from the auxiliary hook locking hole 4 and locked to the step bolt S. In the D-ring 2 from which the auxiliary hook 9 of the auxiliary rope 8 has been removed, the shielding plate 5 rotates, the main hook locking hole 3 is opened, and the main hook 6 is removed from the main hook locking hole 3 of the D ring 2. Can be. Then, after avoiding the sign and the street light, the removed main hook 6 is again locked in the main hook locking hole 3 of the D ring 2, the auxiliary hook 9 is removed from the step bolt S, and the auxiliary hook 9 is inserted into the auxiliary hook locking hole 4. Lock. Then, the lid portion 51 of the shielding plate 5 is pushed by the hook portion 91 of the auxiliary hook 9 and moves, thereby shielding a part of the hook locking hole 3. Accordingly, the stopper metal 7 of the hook portion 61 of the main hook 6 comes into contact with the shielding plate 5, and the main hook 6 does not come off. In short, it is important to first remove the auxiliary hook 9 and lock it to the step bolt S. If the auxiliary hook 9 is not removed, the main hook 6 will not come off, eliminating the non-connected state. Things. At this time, the hook 6 can be released even if it is hung down from the belt portion B. However, the auxiliary hook 9 may be trampled on its own when moving, or the auxiliary hook 9 may be stuck on an unexpected object, and may be dangerous. It is natural to expect that the situation will occur,
It can be expected to do so with a high probability. When the U-shaped posture is formed at the next construction position at a high place, the auxiliary hook 9 is removed from the step bolt S, and the auxiliary hook 9 is locked in the auxiliary hook locking hole 4 to perform the work. Can be prevented.

[0007]

As described above, the use of the auxiliary rope with the auxiliary rope according to the present invention makes it possible to forcibly perform the use of the auxiliary rope, which was conventionally left to the will of the worker, in the middle. Even when you are in an unstable mental state, you can work at heights with peace of mind. Also, due to the illusion of the worker, the hooks are removed in the wrong order, and the hooks are disconnected,
Although a crash disaster may have occurred, the present application requires that the auxiliary hook be removed first and this hook cannot be removed unless the auxiliary rope is used, and the order in which the hooks are removed is limited. With the rope, the body of the worker is connected to the structure, and no connection state occurs.

[Brief description of the drawings]

FIG. 1 is a front view of the safety belt set of the present application.

FIG. 2 is a front view of the present D-ring.

FIG. 3 is a right side view of the present D-ring.

FIG. 4 is a perspective view of a D-ring of the present application.

FIG. 5 is a front view of a D-ring of the present application in a hook-fitted state.

FIG. 6 is a central transverse sectional view of FIG. 5;

FIG. 7 is a front view showing a use state of the present application.

FIG. 8 is a front view of a conventional safety belt set.

[Explanation of symbols]

 1 Square ring 2 D ring 3 hook locking holes 4 Auxiliary hook locking hole 5 Shield plate 6 hooks 7 Detachment fitting 8 Auxiliary rope 9 Auxiliary hook 51 Lid 52 Spring 61 Hook 62 Spring 63 Rotating part 64 Open / close cap 65 Safety cap 91 Hook B Belt

Continuing from the front page (72) Inventor Hiroya Nagai 14-15 Higashi-Shirashima-cho, Naka-ku, Hiroshima-shi, Hiroshima Prefecture NTT Telecom Engineering Co., Ltd. China (72) Inventor Hiroshi Nakai Takino, Kato-gun, Hyogo Prefecture (1) Inventor Osamu Morino at 1573 Machigami Takino (73) Inventor Osamu Morino F-term (reference) 2E184 JA04 KA06 KA11 LA15

Claims (1)

[Claims] The present invention relates to a safety belt on a pole having a structure in which a hook (6) at the end of a rope (R) connected to one of rectangular rings (1) provided so as to be positioned on the left and right sides of the waist when attached is connected to the other D-ring (2). Hook locking hole 3, auxiliary hook locking hole 4,
A shielding plate 5 is provided, and a cover 51 of the shielding plate 5 is provided in contact with the auxiliary hook locking hole 4 by the urging of a spring 52 at all times, and an auxiliary hook 9 is fitted into the auxiliary hook locking hole 4. If the shield 5
The lid portion 51 is pushed by the hook portion 91 of the auxiliary hook 9 and moves, and a D-ring configured to cover a part of the hook locking hole 3 and a spring 62 is urged to the tip of the hook portion 61. When the auxiliary hook 9 and the main hook 6 are locked to the D-ring 2, the main hook locking hole 3 is formed by the shielding plate 5. A safety belt on a pole with an auxiliary rope, which is shielded so that the hook 6 cannot be removed.