JP2013173211A - Safety cord attachment metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a safety cord attachment metal fitting from being used while hooking a hook of a safety rope to the metal fitting 1 by avoiding the connection of the safety rope to the safety cord attachment metal fitting 1 which is equipment for preventing a fall of tools, in the safety cord attachment metal fitting 1 to which one end of a safety cord 5 connected with the tools at the other end is hooked.SOLUTION: A safety cord attachment metal fitting 1 comprises a connecting part connected to a safety band wound around the waist of a worker; a rod-shaped body 20 which is integrally arranged at the connecting part, and to which a hook part 51 of a swivel 50 at one end of a safety cord 5 is hooked; and a box body 30 which is arranged around the rod-shaped body 20 so as to hinder the hooking of the hook of a safety rope larger than the hook part 51 of the swivel 50 to the rod-shaped body 20, and interferes with the hook of the safety rope approximating the rod-shaped body 20.

Description

  The present invention relates to a safety cord fitting that is used mainly on a waist part of an operator at high altitude and that is hooked with one end of a safety cord having tools attached to the other end.

Workers who perform work such as electrical work in high places are equipped with equipment to prevent their own accidents and to prevent tools used during work from falling. As the equipment for preventing the operator from falling accidentally, a belt-shaped safety belt is wound around the waist of the worker, a so-called D-ring is attached to the safety belt, and the body connected to the structure to be worked is connected to the D-ring. Hook a leash. Thereby, when an operator falls accidentally, the operator himself is supported by the rope. Further, as a tool for preventing the tools from dropping, a metal fitting similar to the D-ring is attached to the safety belt, and a safety cord having the other end coupled to the tool is hooked on the metal fitting through the ring. Thus, when the operator accidentally drops the tools, the tools are supported by the safety code.
The following Patent Document 1 discloses equipment for preventing the dropping of tools.
While the equipment for preventing a worker's own fall is strong enough to support the weight of a person, the equipment for preventing the fall of tools only supports tools that are lighter than the weight of a person. It has only strength.

Japanese Utility Model Publication No. 5-49272

As described above, since the operator works by attaching the D-ring and the metal fitting to the same safety belt at the same time, the worker himself / herself is prevented from dropping the metal fitting that is a tool for preventing the tool from dropping by intention or negligence. There is a possibility that the hook of the torso that is the equipment for the hook will be hooked and used. Therefore, it is conceivable to increase the strength of the metal fitting to the same strength as that of the D ring so that the fall prevention function of the operator himself is not impaired even if such a mistake is made. However, when the strength is increased in this way, there is a problem that the weight of the metal fitting increases. In other words, the metal fittings originally need only have the strength to support the tools, but in order to be able to support the human body as well, it is necessary to significantly increase the strength. Thickening will increase the weight. Since such a metal fitting is attached to the waist while the operator is working, an increase in the weight of the metal fitting increases the work load on the operator.
In view of such problems, the object of the present invention is to prevent the tool from being connected to the metal fitting that is a tool for preventing the fall of the tools, so that the hook of the steel rope is hooked on the metal fitting intentionally or accidentally. It is to prevent that.

A first invention of the present invention is a safety cord mounting bracket on which one end of a safety cord having a tool coupled to the other end is hooked, and a coupling portion coupled to a safety belt wound around the waist of an operator A hook part integrally provided with the coupling part and hooked on one end of the safety cord, and the hook so as to prevent the hook from being hooked on the hook part larger than the one end of the safety cord. And an interference part that interferes with a hook of the rope that is provided around the hook and approaches the hook part.
According to the first aspect of the present invention, since the interference portion that originally prevents the hook of the rope from being hooked on the hook portion to which one end of the safety cord is hooked is provided, the hook of the rope is hooked on the hook portion intentionally or accidentally. It is possible to prevent it from being hung.

According to a second aspect of the present invention, in the first aspect, the hook portion is formed of a rod-shaped body, and a J-type hook that is hooked on the rod-shaped body is provided at one end of the safety cord. Allow the rod-shaped body to move toward the hooked position in the direction of approaching the J-shaped hook to the open portion of the J-shaped hook that allows the rod-shaped body to be inserted toward the hooked position when hooked on the rod-shaped body, and vice versa When the J-shaped hook is provided with a gate piece that prevents movement in the direction, the interference portion is centered on the rod-shaped body of the J-shaped hook with the J-shaped hook hooked on the rod-shaped body. It is arranged at a position where it does not interfere with the gate piece by swinging.
According to the second aspect of the invention, even if the J-shaped hook hooked on the rod-shaped body forming the hooking portion swings around the rod-shaped body during use, the gate piece of the J-shaped hook does not interfere with the interference section. Therefore, the gate piece does not open the opening portion of the J-type hook due to the swinging of the J-type hook, and it is possible to prevent the J-type hook from being inadvertently detached from the rod-shaped body.

It is a front view of one embodiment of the present invention. It is a side view of the said embodiment. It is a rear view of the said embodiment. It is a perspective view which shows the state which hooked the safety cord on the safety cord attachment metal fitting of the said embodiment. It is explanatory drawing which shows the usage example of the said embodiment.

1 to 3 show an embodiment of the present invention, and an annular body 10 constituting a coupling portion of a safety cord mounting bracket 1 is a belt-like safety belt 7 that is wound around a waist of an operator (see FIG. 5). It is formed in an annular shape so as to follow the cross-sectional shape. In this case, since the cross-sectional shape of the safety band 7 is a rectangle that is long in the vertical direction, the annular body 10 is also formed in a rectangular shape so that the safety band 7 can be accommodated in the ring as viewed from the side as shown in FIG. It is formed by bending a body or joining a plurality of plates.
When the operator attaches the safety cord mounting bracket 1 to his / her waist with the safety belt 7 below the annular body 10, the position on the inner side, that is, the position closer to the worker's own body, A hooking plate 21 is provided integrally with the annular body 10. In this case, the hooking plate body 21 may be configured by the same plate body as the annular body 10, or a plate body different from the plate body of the annular body 10 may be joined.
Here, two through holes 22 (see FIGS. 2 and 3) are formed in the center upper part of the hooking plate body 21 in the vertical direction, and two through holes 22 are added to each through hole 22 in total. Four rings (not shown) can be coupled.

On the front side of the annular body 10 and the hooking plate body 21, a rod-like body 20 forming a hooking portion is provided. A pair of rod-like bodies 20 are provided on the upper and lower sides, and are erected on each front side of the annular body 10 and the hooking plate body 21. The number of the rod-shaped bodies 20 may be only one, or three or more. The periphery of the rod-shaped body 20 is covered with a hexahedral box 30 forming an interference portion. One end of each rod-shaped body 20 is welded and fixed to the surface of the annular body 10 and the hooking plate body 21, and the other end is fixed to the inner surface of the box body 30. Each side of the box 30 is closed except for one side, and one open side is the right side in FIG. 1, the front side in FIG. 2, and the left side in FIG. As can be seen from FIG. 1, each rod-shaped body 20 is biased to the open surface side of the box body 30. This is to secure a predetermined space between the rod-shaped body 20 and the surface forming the box 30 (the surface facing the open surface).
In addition, the box 30 can also make the closed surface which opposes an open surface into an open surface. In that case, each rod-shaped body 20 can be accessed from two open surfaces, but the problem of the strength of the box 30 being reduced needs to be solved separately. Also, the open surface can be replaced with an opposing closed surface. In that case, the direction of access to each rod-shaped body 20 can be switched between left and right. For example, it is possible to select and use a safety cord mounting bracket having an open surface on the favorite side depending on the difference in the dominant arm of the operator.
The length of the rod-like body 20 and the dimensions of each part of the box body 30 are as follows: a hook part 51 (corresponding to a J-type hook in the present invention) of an eggplant 50 provided at one end of the safety cord 5 and a hook 91 coupled to the trunk 9. It depends on the size (see FIG. 5). That is, the hook portion 51 of the eggplant 50 can be inserted into the box body 30 and hooked on the rod-shaped body 20, but the hook 91 coupled to the rope 9 can be inserted into the box body 30. Therefore, it is set not to be caught on the rod-shaped body 20. That is, as apparent from FIG. 5, the hook 91 has a larger shape than the hook portion 51 of the eggplant 50, so that even if the hook 91 is hooked on the rod-shaped body 20, it interferes with the box body 30 and hooks. I can't. For example, even if the tip of the hook 91 is inserted into the box 30 and hooked on the rod-like body 20, the hook 91 has a larger shape than the predetermined space in the box 30 and enters the hook 91. I can't.

The hook portion 51 of the eggplant 50 is generally provided with a gate piece 52 so as to close the open portion of the J-shaped hook portion 51, and the hook portion 51 of the eggplant 50 hooked on the rod-shaped body 20 can be easily detached. I am trying not to. The gate piece 52 is made of a spring material, and when the hook portion 51 of the eggplant 50 is hooked on the rod-shaped body 20, it is pushed by the rod-shaped body 20 that moves closer to the hook portion 51 so that the rod-shaped body 20 enters the hook portion 51. In the state where the base 53 side of the NASCAN 50 is deformed and the rod-like body 20 enters the hook portion 51 and the hook portion 51 is hooked on the rod-like body 20, the gate piece 52 returns to the original state and the gate piece 52 The side end far from the base 53 abuts on the tip of the hook portion 51 so that the rod-shaped body 20 does not come off the hook portion 51.
The hook portion 51 of the eggplant 50 is swingable around the rod-shaped body 20 in a state where it is hooked on the rod-shaped body 20. When the gate piece 52 interferes with a part of the box 30 when swinging in this way, the gate piece 52 is pushed by the box 30 and deformed in the same way as when the gate piece 52 is pushed by the rod 20. there's a possibility that. If the gate piece 52 is deformed in such a manner, the rod-shaped body 20 may be detached from the hook portion 51 of the eggplant 50. Therefore, the dimensions and arrangement of each part are set so that the gate piece 52 does not interfere with any part of the box 30 even when the hook part 51 of the eggplant 50 swings as described above.

  The plate on the side to which the rod-like body 20 of the hooking plate body 21 is welded is extended to the side to form the cover body 4. As shown in FIG. 5, the cover body 4 covers and hides a ring (not shown) fixed to the hooking plate body 21 from the outside in a state where the safety cord mounting bracket 1 is coupled to the safety belt 7. Thus, even if the hook 51 of the eggplant 50 provided at one end of the safety cord 5 can be hooked, the hook 91 coupled to the rope 9 is not hooked. That is, since the ring is covered by the cover body 4, the relatively small hook portion 51 of the eggplant 50 can be hooked through the gap between the cover body 4 and the operator's body. Compared to 51, the large hook 91 is difficult to pass through the gap and cannot be hooked on the ring.

  When the safety cord mounting bracket 1 is attached to the operator's waist by the safety belt 7, the cover body 4 is positioned outside the hooking plate body 21 in order to achieve the original purpose. Need to be done. Further, it is necessary that the rod-shaped body 20 constituting the hooking portion is positioned outside the annular body 10. Therefore, as shown in FIG. 3, an indication “Please use this surface inward” is given on the inner side when the plate surface forming the annular body 10 is attached to the waist of the operator. Has been. Further, as shown in FIG. 5, when the safety cord mounting bracket 1 is attached to the operator's waist, the outer side of the plate surface of the box body 30, which is the outer side, displays “Safety First” and a green cross. A combination of marks is displayed. By providing such a display, when the safety cord mounting bracket 1 is coupled to the safety belt 7, the safety cord mounting bracket 1 is mounted in the correct orientation.

FIG. 4 shows a state in which the hook 51 of the eggplant 50 provided at one end of the safety cord 5 is hooked on the rod-like body 20 in a state where the safety cord mounting bracket 1 is viewed from the front side. . Here, only one safety cord 5 is hooked, but naturally the safety cord 5 can be hooked by the number (two) of the rod-shaped bodies 20.
FIG. 5 shows a state in which the safety cord mounting bracket 1 of the present invention is attached to the safety belt 7. As described with reference to FIG. 4, the hook portion 51 of the eggplant 50 at one end of the safety cord 5 is hooked on the safety cord mounting bracket 1 coupled to the safety belt 7, and a tool is applied to the eggplant 54 provided at the other end of the safety cord 5. When the tool is accidentally dropped while working at a high place by connecting 62, the tool 62 is supported by the safety belt 7 via the safety cord 5 and the safety cord mounting bracket 1 and dropped to the ground. Can be prevented.
In FIG. 5, reference numeral 61 denotes a tool case sheath for holding the tool 62 on the waist of the operator, and is coupled to the safety belt 7 at the upper part. Reference numeral 8 denotes a D ring connected to the safety zone 7.

According to the above-described embodiment, the box body 30 that prevents the hook 91 of the trunk 9 from being hooked around the rod-shaped body 20 is provided, so that the hook 91 of the trunk 9 is hooked on the rod-shaped body 20 intentionally or accidentally. Can be prevented.
Further, even if the hook portion 51 of the eggplant 50 hooked on the rod-like body 20 swings around the rod-like body 20 during use, the gate piece 52 of the hook portion 51 of the eggplant 50 does not interfere with the box 30. . Therefore, the gate piece 52 does not open the opening part of the hook part 51 of the eggplant 50 due to the swinging of the hook part 51 of the eggplant 50, and the hook part 51 of the eggplant 50 is inadvertently detached from the rod-shaped body 20. This can be suppressed.

  The present invention is not limited to the appearance and configuration described in the above embodiment, and various modifications, additions, and deletions can be made without changing the gist of the present invention. For example, the safety belt to which the safety cord mounting bracket is coupled is not a dedicated belt and may be a general belt.

1 Safety cord mounting bracket 10 Ring body (joint)
20 Rod body (hook)
21 hook plate 30 box (interference part)
5 Safety code 50 Naskan 51 J-type hook 52 Gate piece 7 Safety belt 8 D ring 9 Trunk 91 Hook

Claims (2)

A safety cord mounting bracket on which one end of a safety cord having tools attached to the other end is hooked,
A coupling portion coupled to a safety belt wound around the waist of the operator;
A hooking portion provided integrally with the coupling portion, to which one end of the safety cord is hooked;
An interference portion that is provided around the hook portion so as to prevent the hook portion from being hooked on a hook of the rope that is larger than one end of the safety cord, and that interferes with the hook of the rope that approaches the hook portion; A safety cord mounting bracket characterized by comprising: In claim 1,
The hook part is composed of a rod-shaped body,
A J-type hook that is hooked on the rod-shaped body is provided at one end of the safety cord, and when the J-shaped hook is hooked on the rod-shaped body, the bar-shaped body is inserted toward the hooked position. When the J-shaped hook is provided with a gate piece that allows the rod-shaped body to move toward the hooked position in the direction approaching the J-shaped hook and prevents movement in the opposite direction,
The interfering portion is disposed at a position where it does not interfere with the gate piece by swinging around the rod-shaped body of the J-shaped hook in a state where the J-shaped hook is hooked on the rod-shaped body. Safety cord mounting bracket.

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