JP2539247Y2 - Suspension tools such as safety nets - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging device such as a safety net or a safety sheet used for a temporary work scaffold at a construction work site, and is particularly used by hanging it on a horizontal steel pipe such as a steel pipe frame scaffold. Related to the hanging device.

[0002]

2. Description of the Related Art Conventionally, this type of suspending device comprises an upper hook portion and a lower hook portion. When using the same, as in the use example of FIG. The hook is detachably fitted to the horizontal steel pipe HP of the steel pipe framework scaffold, and the lower rope hooks the peripheral rope R of the safety net SN.

[0003]

In the above-described conventional suspending device, when an upward force is applied to the suspending device during use, for example, an object falls on a safety net and the net is moved. When the object is received, the reaction force acts upward on the suspending device, and the upper hook portion comes off the horizontal steel pipe.

In view of the above circumstances, the present invention is extremely safe in that the upper hook portion does not easily come off even if an object is dropped on a safety net or the like and an upward force is applied to the hanging device. It is intended to provide a hanging tool.

[0005]

The hanging device of the present invention which can achieve the above-mentioned object has an upper hook portion detachably fitted to a horizontal steel pipe such as a temporary work scaffold and a safety net. A lower hook portion for stopping the upper hook portion, and a free end of the upper hook portion is provided with a liftable stopper pin that hangs down by its own weight in a horizontal steel pipe fitting / removing path to the upper hook portion. It is assumed that.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 3. The hanging device 1 includes an upper hook portion 2 removably fitted to a horizontal steel pipe HP of a steel pipe frame scaffold, The lower hook portion 3 is hooked on the peripheral rope R of the safety net SN used for the scaffold, and the lower hook portion 3 is hooked thereto. The pin insertion hole 4 supports a liftable stopper pin 6 which is suspended by its own weight in the horizontal steel pipe fitting / removing path 5 to the upper hook portion 2. 1 and 3
Is the vertical steel pipe of the steel pipe framework scaffold.

[0007] The horizontal steel pipe fitting / disconnecting path 5 is a horizontal steel pipe H
In order to escape from the state where P is fitted to the upper hook portion 2 to the outside of the upper hook portion 2 as shown in FIG. It is a path through which the steel pipe HP passes, and refers to a region between the free end 2a of the upper hook portion 2 and the lower hook portion 3. Thus, when the stopper pin 6 droops into the horizontal steel pipe fitting / removing path 5 in a state where the horizontal steel pipe HP is fitted to the upper hook part 2, the horizontal steel pipe HP cannot be removed from the upper hook part 2. Since the entrance 7 to the lower hook 3 is formed to be slightly narrower than the outer diameter of the peripheral rope R of the safety net SN, once the peripheral rope R is once hooked on the lower hook 3, it is easily formed. It will not come off.

The stopper pin 6 is formed of a metal pipe or rod having a diameter slightly smaller than the insertion hole 4, and upper and lower ends of the stopper pin 6 are larger than the insertion hole 4.
a, 6b. The stopper pin 6 hangs down by its own weight in the use position as shown in FIGS. 1 and 3, enters the horizontal steel pipe fitting / removing path 5, and fits into the upper hook portion 2. This will prevent HP from leaving.

In order to manufacture the hanging tool 1, as shown in FIG. 2, a metal bar is first bent in two, and the pin insertion hole 4 is formed in the folded part. The bent metal bar is further bent, and the pin insertion hole 4 is formed.
By coupling the upper hook 2 with the free end 2a to the lower hook 3, it can be manufactured easily and easily. The stopper pin 6 is inserted into the pin insertion hole 4 during the manufacture of the hanging tool 1 as described above.

When the safety net SN is attached to the horizontal steel pipe HP of the steel pipe frame scaffold as shown in FIGS. 1 and 3 by using the hanging tool 1 having the above-described structure, for example, the object is placed on the safety net SN. When the net SN receives the object and the reaction force acts upward on the suspending device 1 and the upper hook portion 2 attempts to separate from the horizontal steel tube HP, the stopper pin 6 remains in the horizontal steel tube. Since the upper hook portion 2 is located in the fitting / removing path 5, the upper hook portion 2 is prevented from being detached from the horizontal steel pipe HP. Further, when removing the hanging tool 1, the stopper pin 6 may be pushed upward as shown by the phantom line in FIG.

In this embodiment, the case where one end of the safety net SN is attached to the horizontal steel pipe HP with the hanging device 1 has been described, but the other end of the safety net SN also uses the hanging device 1. And can be mounted on other horizontal steel pipes.

[0012]

[Operation and effect of the present invention] The hanging device such as the safety net of the present invention has an upper hook portion detachably fitted to a horizontal steel pipe such as a temporary work scaffold and a lower hook for hanging the safety net. A lifting pin which is attached to the free end of the upper hook portion and which is suspended by its own weight in a horizontal steel pipe fitting / removing path to the upper hook portion. In a state where the stopper pin is fitted to the horizontal steel pipe, the stopper pin droops into the horizontal steel pipe insertion / removal path, whereby the upper hook portion cannot be removed.

Therefore, for example, even when an object falls on the safety net and the net receives the object, the reaction force acts upward on the suspending tool, and the upper hook portion attempts to separate from the horizontal steel pipe. The stopper pin prevents the upper hook portion from coming off the horizontal steel pipe, thereby ensuring work safety.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view showing a use state of a hanging device of the present invention.

FIG. 2 is a perspective view showing a hanging tool.

FIG. 3 is a perspective view showing a use state of the hanging tool in a more easily understood manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hanging tool 2 Upper hook part 2a Free end of upper hook part 3 Lower hook part 4 Pin insertion hole 5 Horizontal steel pipe insertion / removal path 6 Stopper pin HP Horizontal steel pipe SN Safety net R Peripheral rope of safety net

Claims (1)

(57) [Scope of request for utility model registration] An upper hook portion detachably fitted to a horizontal steel pipe such as a temporary work scaffold, and a lower hook portion for hooking a safety net or the like. ,
A suspending device such as a safety net having a liftable stopper pin hanging down by its own weight in a horizontal steel pipe fitting / removing path to the upper hook portion.