JPS607087Y2 - Safety belt for working at heights - Google Patents

Description

[Detailed description of the invention] This invention relates to a safety belt for preventing falls of workers working at high places in construction work, civil engineering, mining, etc.

This type of safety belt is usually used for worker A, as shown in Figure 1.
A hook 2 at the tip of a rope 1 with a hook is wrapped around the waist of the person and connected to a D ring, and the hook 2 at the tip is hung on a horizontal master rope 3 stretched at a high place.

Therefore, even if a worker loses his or her foot and falls, the worker can be supported in a suspended state, making it extremely safe.

By the way, the hook 2 of the hooked rope 1 is usually hung at a place higher than the worker's waist, but the hook 2
When the engagement position of worker A and the working position are close to each other,
As shown in FIG. 1, the hooked rope 1 bends into a U-shape, and there is a risk that the user may get caught and fall at the part 4 that hangs down close to the scaffolding.

Therefore, the object of this invention is to provide a safety belt for working at heights, which eliminates the above-mentioned inconveniences and can prevent a worker from falling due to getting caught on a rope with a hook.

In order to achieve the above object, according to this invention, a ring-shaped adjustment band is attached to the belt body where the hooked rope is connected at a different position from the rope connecting position, and the hooked rope is inserted into this adjustment band. Alternatively, insert the hook several times so that a portion of the hooked rope is loosened at the back of the worker to the extent that it does not interfere with the worker's movement, and the hooked rope is inserted between the adjustment band and the hook retention position. In addition to preventing loosening, the strength of the adjustment band is such that it can be cut by the impact force when the worker falls, and the impact when the worker falls is buffered by cutting the adjustment band.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIGS. 2 and 3, the safety belt according to this invention includes a band main body 10 that can be wrapped around the waist of a worker, and a state in which the main body 10 is wrapped around the waist of the worker. A D ring 11 is attached at a position corresponding to the side of the waist.

A hooked rope 12 is connected to the D ring 11, and a hook 13 is attached to the tip of the rope 12, which can be freely hooked on and removed from a master rope or the like.

A ring-shaped adjustment band 14 is attached to the band body 10.

The adjustment band 14 has a ring shape large enough to allow the hook 13 to be inserted into it, and is strong enough to be cut by the impact force when the worker falls and stands still.

Such an adjustment band 14 may be movably attached to the band body 10, or may be attached to the band body 10 in a movable manner.
It may be a fixed attachment relative to 0.

As shown in FIG. 4, this adjustment band 14 is
A simple ring shape, a shape in which a guide cylinder part 16 into which the band body 10 can be inserted is provided at the end of a cylinder part 15 into which the hook 13 can be inserted, as shown in FIG. 5, or a shape as shown in FIG. 6. In this way, it is possible to adopt a shape in which a guide cylinder part 16 into which the band body 10 can be inserted is formed outside the cylinder part 14 into which the hook 13 can be inserted.

The safety belt shown in the embodiment has the above-mentioned structure, and the safety belt is constructed by inserting the hook 13 of the hooked rope 12 into the adjustment band 14 while the band body 10 is tightened around the outer circumference of the worker's waist. After wrapping a part of the rope 12 around a part of the adjustment band 14 several times, the hook 13 at the tip is hung on the main rope 17, and the hook 12 is wrapped around the part a between the D ring 11 and the adjustment band 14. This is done to eliminate slack in the partial strap between the adjustment band 14 and the main rope 17.

(See FIG. 2) By using the safety belt as described above, the worker can work safely without getting his/her foot caught by the hooked rope 12 and falling down.

By the way, if the worker loses his or her foot and falls during the work, a portion of the hooked rope 12 between the adjustment band 14 and the engagement position of the hook 13 will become tense just before the worker stops falling. Since the impact force acts on the adjustment band 14, the adjustment band 14 breaks, and this breakage can buffer the impact force and reduce the falling speed from the breakage to the time when the band stops falling.

As described above, according to this invention, by inserting the hook of the rope with a hook into the adjustment band attached to the band body, the adjustment band can support the middle of the rope with the hook. By creating a slack in the hooked rope between the rope connection part and the adjustment band, and by holding the end of the hooked rope extending from the adjustment band to the hook engagement position in a slack state, as a result, the above-mentioned You can prevent your feet from getting caught on a rope with a hook and falling.
Work can be done safely.

Also, since you can hook the adjustment band,
The hooked rope can be tied up when the work is stopped, allowing the user to take a break while being able to start work quickly.

Furthermore, by setting the strength of the adjustment band to such a level that it can be cut by the impact force generated when the worker falls still, the adjustment band can be cut by the impact caused by the fall, and the cutting can buffer the impact force.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing how the conventional safety belt is used, Fig. 2 is a perspective view showing how the safety belt according to this invention is used, and Fig. 3
The figure is a perspective view showing a state where the operator is in the middle of resting when the operator falls in the above-mentioned usage state, and FIGS. 4 to 6 are perspective views showing other embodiments of the above-mentioned adjustment band. 10...Band body, 11...D ring,
12... Rope with hook, 13...
Hook, 14...adjustment band.

Claims (1)

[Claims for Utility Model Registration] 1. In a safety belt in which a rope with a hook is connected to a belt body that can be wrapped around the outer circumference of the waist of a worker, the rope with a hook is located at a different position from the rope connecting part of the belt body. A ring-shaped adjustment band through which the hook can be inserted is installed, and the strength of the adjustment band is such that it can be cut by the impact force when the worker falls when engaged with the hooked rope. A safety belt for working at heights. 2. The safety belt for working at heights according to claim 1, wherein the adjustment band is movable along the belt body.