JPH0519084Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a safety belt installation method as a safety measure to prevent fall accidents when working at heights associated with the construction, renovation, cleaning, etc. of buildings and other structures. The present invention relates to rope attachment fittings for attaching ropes.

[Prior art]

When performing work at heights associated with the construction, renovation, cleaning, etc. of buildings and other structures, businesses and workers are required to take measures to prevent falls, in accordance with the Industrial Safety and Health Act. ing. According to this, priority should be given to the installation of work floors or barrier nets, but depending on the nature of the work, it may be difficult or inappropriate to install these. In such cases, the use of safety belts is prescribed to prevent the risk of falling.

However, although standards have been established for safety belts themselves and products that meet these standards have been supplied, the current situation is that there are no standards or products for devices for wearing safety belts. . This is thought to be due to the wide variety of subjects to whom safety belts are worn.

1 to 3 show a conventional example of the above-mentioned rope attachment fitting.

FIG. 1 shows a receiving fitting 1, an insertion fitting 2, and a training plate 3 in this example. The receiving metal fitting 1 has a U-shaped central piece 1a.
Attachment pieces 1b for fixing to a structure such as a building are provided in series on both sides. The concave side 1d of the central piece 1a forms a groove for inserting and removing the insertion fitting 2. The mounting piece 1b is provided with a bolt hole 1c for fixing to a structure such as a building. The method of fixing the receiving metal fitting 1 to a structure such as a building is not necessarily limited to bolts as in this embodiment, and depending on the object, welding, clamping, etc. can also be used. The insertion fitting 2 has an inverted U-shape, and one leg 2a is provided with a rope attachment hole 2b, and the other leg 2c is connected to a recess of the receiving fitting 1 fixed to a structure such as a building. By inserting it into 1d, the insert fitting 2 itself is held. The hole 2b is normally formed with the assumption that a rope will be attached thereto, but a safety belt can also be directly attached thereto depending on the installation location and work conditions. The curing plate 3 is used when there is a risk of damage to a structure such as a building when the insertion fitting 2 is inserted into or removed from the receiving fitting 1.

FIG. 2 shows, in a longitudinal cross-sectional view, the situation in which the receiving fitting 1 and the training plate 3 in this example are attached using bolts 4 embedded in concrete parts such as pillars and walls of a building.

FIG. 3 shows a situation in which the metal fittings of this example are installed inside a building and a rope 5 is stretched across the metal fittings for use in attaching safety belts. This ensures the safety of workers without being hindered in their work. After the work is completed, the safety belt attachment rope 5 can be easily withdrawn by pulling out the insertion fitting 2 from the receiving fitting 1. Although the figure shows a situation in which the receiving metal fitting 1 is installed inside a building, it can also be installed outside the building if necessary.

[The problem that the idea aims to solve]

The above-mentioned rope attachment fitting can reliably support the safety belt attachment rope 5 as long as the insertion fitting 2 is inserted into the receiving fitting 1, but it is possible to further improve the soundness of the device and ensure fall prevention. In order to achieve this, it is desirable to take measures to prevent the insertion fitting 2 from coming off from the receiving fitting 1.

The object of this invention is to provide a rope attachment fitting that can easily install a safety belt attachment rope used by workers engaged in working at heights and that has sufficient soundness.

[Structure of the idea]

The rope attachment fitting of the present invention consists of an inverted U-shaped insertion fitting with a rope attachment hole in one leg, and a central piece that forms a space in which the other leg of the insertion fitting can be freely inserted and removed. and a receiving metal fitting on both sides of which mounting pieces for attachment to a structure such as a building are connected, and one of the insertion metal fitting and the receiving metal fitting has a plane that intersects with the plane containing the other metal fitting. The stopper is provided so as to be elastically deformable.

[Effect]

According to the above configuration, the stopper provided on one metal fitting intersects with the other metal fitting.
Both metal fittings cannot be moved relative to each other in the plane direction. Furthermore, by elastically deforming the stopper, it can be retracted to a position where it does not intersect the plane containing the other metal fitting.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 shows a longitudinal section of the rope attachment fitting according to the first embodiment of the present invention. Reference numeral 41 is a receiving metal fitting that is attached to a wall surface of a structure. Similar to the conventional receiving fitting shown in FIG. 1, this receiving fitting 41 has a structure in which an insertion fitting 42 is received in a recess 41d of a central piece 41a.

A stopper 42c having a spring effect so as to always protrude toward the rope attachment leg 42b is provided at a proper position on the insertion leg 42a of the insertion fitting 42 to the receiving fitting 41. The rope attachment fitting of this example has an effect of preventing the insertion fitting 42 from falling off in addition to the effect exhibited by the rope attachment fitting of the conventional example shown in FIG. That is, the insertion leg 42 of the insertion fitting 42
When a is inserted into the recess 41d of the center piece 41a of the receiving metal fitting 41, the claw portion 42d of the stopper 42c first
is pressed by the back of the center piece 41a and elastically deforms, and thereby sinks into the hole 42e provided in the insertion leg 42a, and the stopper 42c moves into the receiving metal fitting 41.
after passing through the center piece 41a of the stopper 42c.
The claw portion 42d is elastically restored and automatically projects toward the leg 42b of the metal insert 42, thereby locking the metal insert 42 so that it does not fall off. To remove this insertion fitting 42, insert the upper part of the stopper 42c into the hole 4.
This can be easily done by moving the insertion fitting 42 itself upward while pressing it in the direction 2e.

FIG. 5 shows a longitudinal section of a rope attachment fitting according to a second embodiment of the present invention. In this example, the first
Similar to the embodiment, this is aimed at preventing the insert fitting 52 from falling off, and the center piece 51 of the receiving fitting 51
A stopper 51b having a spring effect is provided at a. The stopper 51b always elastically protrudes toward the back surface of the center piece 51a of the receiving fitting 51, and the insertion leg 52a of the insertion fitting 52 is provided with a hole 52c into which the stopper 51b fits.
By fitting the stopper 51b into the hole 52c, the insertion fitting 52 is prevented from falling off.
The insertion fitting 52 can be easily removed by moving the insertion fitting 52 itself upward while pulling the claw portion of the stopper 51b outward from the central piece 51a of the receiving fitting 51.

In addition, as long as the receiving fitting, the insertion fitting, and the stopper for preventing these from coming off are provided, the specific shapes of these fittings, or the shape of the connection part of the insertion fitting with the rope, etc. are not limited to the examples. Of course not.

[Effect of idea]

As explained above, the rope attachment fitting according to the present invention is a safety device for preventing falls of workers when performing work at heights associated with the construction, renovation, cleaning, etc. of buildings and other structures. As a countermeasure, not only can the rope for attaching the safety belt be safely and reliably spanned, but it can also be installed freely at any location that will not impair work efficiency. In addition, either the receiving fitting or the insertion fitting is provided with a stopper that can be elastically deformed and protrudes to a position that intersects the plane containing the other fitting, so that when the stopper protrudes, the receiving fitting It is possible to reliably prevent the insertion fitting from moving relative to each other and falling off, and by elastically deforming the stopper as necessary, the two can be moved relative to each other.

Therefore, it has sufficient soundness as a mounting bracket for a safety belt, and has the extremely useful effect of being easy to attach and detach.

[Brief explanation of the drawing]

Figures 1 to 3 show a conventional example of a safety belt mounting bracket. Figure 1 is an exploded perspective view, Figure 2 is a vertical cross-sectional view, Figure 3 is a diagram showing the usage situation, and Figure 4 is a booklet. FIG. 5 is a vertical sectional view showing the first embodiment of the invention, and FIG. 5 is a longitudinal sectional view showing the second embodiment of the invention. 41...Bracket fitting, 41a...Central piece, 42b
...Rope attachment leg, 42c...Stopper, 42
...Insert fitting, 42a...Insert leg, 42d...
Claw portion, 51... Receiving metal fitting, 51a... Center piece, 5
1b... Stopper, 52... Insert fitting, 52a
...Insertion leg, 52c...hole.

Claims (1)

[Scope of utility model registration request] An inverted U-shaped insert with a hole for attaching a rope on one leg, and a center piece with a space in which the other leg of the insert can be freely inserted and removed, and on both sides are attached to a structure such as a building. and a receiving metal fitting connected with a mounting piece for mounting the metal fitting, and one of the insertion metal fitting and the receiving metal fitting is provided with a stopper that is elastically deformable and intersects with a plane containing the one metal fitting. A rope mounting bracket characterized by: