JPH0450356Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This invention relates to temporary hanging hooks.

``Prior Art'' As shown in Fig. 3, a temporary hanging hook 1 used at construction sites, etc. is made by welding the base of a round steel tip bent into a key shape to a steel beam 2, etc. are doing.

``Problems that the invention attempts to solve'' However, there are various difficulties with the descriptive means as listed below.

As shown in FIG. 4, there is a large reduction in yield strength due to the eccentricity 5 between the weld stop 3 and the hook 4, that is, the deformation of the hook 4 occurs from the chain line to the solid line in the figure.

Round steel tends to bend due to the above eccentric load,
Also, unevenly distributed loads are applied to the three welded parts, making them prone to breakage.

There is a concern that the hanging material 6 will come off when diagonally hanging or diagonally pulling, which also looks uneasy.

I can't help but feel anxious.

In reality, this phenomenon does not occur unless the hook portion 4 breaks because the above-mentioned diagonal hanging or diagonal tension is usually performed downward, but it causes visual and psychological anxiety. It is something that exists.

The hanging material 6 comes off when the hanging material 6 gets over the hook portion 4 when the tension applied to the hanging material 6 is completely eliminated and the restraining force is released.

It is difficult to bend round steel, and strength decreases due to unreasonable local bending.

The present invention was devised in view of the above-mentioned problems with the conventional technology, and its purpose is to provide a hanger that can be used safely without deforming during use or coming off due to loosening of the hanging material. The purpose of the present invention is to provide a temporary hanging hook.

"Means for Solving the Problem" In order to achieve the above object, the temporary hanging hook of the present invention has its upper end placed laterally on the lower half of the plate that is attached to the lower surface of the steel beam by welding. A notch is punched out to form a curved hook portion using the entrance as a bottleneck, and the upper half base of the plate has double arms hanging at a predetermined interval and long enough to close the entrance. The bases of the swing plates are pivoted with pin bolts and stacked.

``Function'' The temporary hanging hook of the present invention has a simple structure that is easy to manufacture (punching), eliminates the problem of eccentricity between the welding stop part and the hook part, and can provide the desired strength. Even if it loosens, it will not come off because of the disengagement prevention member, and visually it can give the user a psychological sense of security that it will not come off.

"Example" This will be explained in detail below based on the drawings.

1A and 1B are a front view and a side view of the product in use, and FIG. 2 is an explanatory diagram of the operation of the product. In the figure, 7 is a plate whose upper end is attached to the lower surface of a steel beam by welding 3, and its lower half is shaped into a hook part 8. That is, the hook portion 8 is formed by punching out a curved notch using the entrance port 13 disposed on the side as a bottleneck.

A base portion of a swing plate 9 is pivotally fixed to the upper half base surface 10 of the plate 7 via a pin bolt 11 and stacked thereon.

Two arms 1 are connected from both ends of the base of the swing plate 9.
2 and 12 are suspended, and their length is set to be sufficient to close the entry port 13 in the hanging position.

The open arm interval WB at the tip of the dual arms 12 is the hook portion 8
It is designed to be approximately the same as the opening interval WA.

Therefore, in the hanging hook of the present invention having the above-mentioned configuration, the hanging material 6 is hung by swinging the swinging plate 9 at a predetermined angle as shown in FIG. This is done by passing the opening in the hook part 8.

At this time, the swing plate 9 is pushed by the hanging member 6 to return to its old position (FIG. 1a). To remove the hanging member 6, the operation described above can be reversed. As is clear from FIG. 1a showing the state when the hanging member 6 is attached, the double arms 12 close the opening of the hook portion 8 when the swing plate 9 is in a stable posture under its own weight. However, this prevents the loosened hanging member 6 from climbing over the hook portion 8.

Furthermore, as is clear from the figure, when the opening of the hook portion 8 is closed, it becomes visible as a surrounding frame with no escape route, so psychologically it is difficult for the hanging member 6 to come off. This gives the operator a sense of security that there is no such problem.

If it is desired to more reliably prevent the suspension member 6 from coming off when it is loosened, the pin bolt 11 may be tightened to the point of crimping to prevent the swing plate 9 from swinging.

Next, regarding the strength, as is clear from Fig. 1a, there is a hook part 8 directly below the weld part 3, so
There is no eccentricity as in the conventional means described above, and no unreasonable stress is generated.

In addition, this product differs from the forced bending of round steel,
This is advantageous because a simple plate punching process is sufficient.

"Effects of the Invention" As described above, the present invention completely eliminates the inconveniences of the conventional means, and also prevents the hanging material from coming off when it becomes loose, and is extremely suitable in practice.

[Brief explanation of the drawing]

Figures 1a and b are front and side views of the product in use, Figure 2 is an explanatory diagram of the operation of the product, and Figure 3 is
The figure is an explanatory diagram of a conventional hanging hook, and FIG. 4 is a functional explanatory diagram of the conventional hanging hook. 1... Hanging hook, 2... Steel beam, 3... Welding, 4... Hook part, 5... Eccentricity, 6... Hanging material, 7... Plate, 8... Hook part, 9... Swinging Plate, 10... Upper half base of plate, 11
...Pinbolt, 12...dual arms.

Claims (1)

[Scope of utility model registration request] A notch is punched out in the lower half of the plate whose upper end is welded to the lower surface of the steel beam, etc., to form a hook part that is cut down in a curved manner, using the entry hole placed on the side as a bottleneck. On the upper half base,
A temporary hanging hook in which the base of a swinging plate having double arms long enough to close the entrance opening hanging down at a predetermined interval is pivotally fixed with a pin bolt and stacked.