JPH07269099A - Hook device for scaffold - Google Patents

Abstract

PURPOSE:To hook scaffolds on pipes and hold them and stably fix them. CONSTITUTION:A stopper pin 16 is provided in a hook 13 fixing a horizontally extending pipe 15. A long hole 21 of a movable member 20 is fitted thereto and the movable member 20 is made free so as to be vertically and horizontally movable and swingable. A wedge 22 is formed at the lower part of the movable member 20 and inserted between a pushing pin 18 provided below the stopper pin 16 of the hoolk 13 and the pipe 15 so as to push the pipe 15. It is also possible that the movable member 20 is temporarily raised and the wedge 22 is positioned at the reverse side of the pushing pin 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook device for a scaffold used for attaching a tread, etc. in a scaffold used for construction work or the like.

[0002]

2. Description of the Related Art In recent years, wedge type scaffolds in which each member is attached to a scaffold by using wedges instead of screw clamps have been widely used because of high work efficiency. In this wedge-type scaffolding, the treads are attached by being hooked on brackets that project laterally from the columns. This bracket is usually cantilevered and has a wedge receiver only on the column side, and the tread is
It has a wedge at one corner of one end and is fitted into this wedge receiver, and has a hook at the other corner so that it can be attached by hooking it on the bracket tip.

In this conventional tread, since the depths of the wedges fitted in the wedge receivers are not necessarily uniform, the hooks are lifted up or the treads are distorted, so that the tread tends to be shaken. , Unsatisfied with safety.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is to provide a new hook device which can not only be hooked, but also can securely hold the bracket to fix the tread plate in a stable manner. .

[0005]

According to the present invention, there is provided a hook portion which can be hooked on a horizontally extending pipe member from above, a stop pin provided on one end of the hook portion, and a hook portion of the hook portion. A presser pin provided below the stop pin, a movable member that is attached to the stop pin so as to be vertically movable and swingable by fitting a long hole in the stop pin, and the lower part of the movable member is narrowed downward. It is formed into a substantially triangular shape and is inserted between the pressing pin and the pipe member from above so that the pipe member can be pushed, and the pipe of the pressing pin can be lifted and then swung down to lower the pipe. A scaffolding hook device comprising a wedge portion that can be positioned on the opposite side of the member.

Further, the present invention further comprises a scaffolding hook which is provided on an upper portion of the movable member and has a weight portion for preventing the wedge portion from being inadvertently raised when the wedge portion is positioned on the side opposite to the pipe member of the holding pin. Includes device.

[0007]

EXAMPLES Hereinafter, examples illustrating the present invention will be specifically described.

The scaffolding hook device 10 is provided at a corner of the plate portion 12 of the tread 11.

The hook portion 13 is formed by forming a substantially semicircular recess 14 at the lower end of a substantially square plate, and the rear (right side in FIGS. 1, 2 and 3) end is joined to the plate portion 12. Therefore, the hook portion 12 can be hooked on the horizontally extending pipe member 15 of the bracket simply by lowering it from above.

The stopper pin 16 has a large-diameter head 17 and is provided on the upper side surface of the end portion in front of the hook portion 13.

The holding pin 18 has a large-diameter head 19 and is provided below the stop pin 16 of the hook portion 13.

The movable member 20 is made of a plate piece and has a long hole 21.
By having the stopper pin 16 fitted into the long hole 21, the hook portion 13 is attached so as to be vertically movable and swingable.

The wedge portion 22 is formed by forming a lower portion of the movable member 20 into a substantially triangular shape whose width becomes narrower toward the lower side, and is inserted between the pressing pin 18 and the pipe member 15 from above.
The pipe member 15 can be pushed and can be positioned on the opposite side of the holding pin 18 from the pipe member 15 by once raising, rocking and lowering.

The weight portion 23 is formed by bulging one end of the upper portion of the movable member 20 in a substantially arcuate shape, and provides weight so that the movable member 20 does not rise inadvertently.

Since the hook device 10 has the above-mentioned structure, it is used as follows. First, the movable member 20 is arranged so that the wedge portion 22 is located in front of the pressing pin 18, as shown by the solid line in FIG. In this way, the hook portion 13 is lowered and hooked on the pipe member 15. Next, the movable member 20 is once raised and rocked as shown by a phantom line in FIG. 2, the wedge portion 22 is further inserted between the pin 18 and the pipe member 15, and the upper end is hit with a hammer to strongly push. Put in. In this way, the wedge portion 22 strongly pushes the pipe member 15, and the hook device 10 is firmly connected to the pipe member 15.

When the hook device 10 is removed, the lower end of the wedge portion 22 may be hit with a hammer to be lifted and swung to position the wedge portion 22 in front of the pressing pin 18.

If the weight portion is provided, the movable member may be inadvertently raised when hooked on the pipe member, the wedge portion may move to the side opposite to the holding pin, and the attachment cannot be performed as it is. It is effective because it is prevented. However, it may be omitted depending on the size and weight of the movable member.

In the illustrated example, the movable member is provided at the front end of the hook portion, but it goes without saying that it can also be provided at the rear end.

[0019]

As described above, the scaffolding hook device of the present invention can be attached and detached by hitting it with a hammer to elevate and lower the movable member. Therefore, the workability is very good, and the pipe member is wedged. Since it is pushed, unlike the case of simply hooking it, it can be firmly fixed.

Further, by providing the weight portion, it is possible to prevent the movable member from being lifted carelessly and the wedge portion to move to the side opposite to the holding pin, which makes it impossible to mount it as it is, which is convenient. is there.

When this hook device is applied to a tread and is used for mounting on a bracket, the tread is stable and the feeling of use is improved.
The safety is improved, and at the same time, the stability and strength of the scaffold can be improved. Of course, this hook device is not limited to a tread plate, but can be widely applied to the attachment of fire striking materials (members that obliquely join scaffold members).

[Brief description of drawings]

FIG. 1 is a front view of a pipe member according to an embodiment of the present invention when attached to a pipe member.

FIG. 2 is a front view showing a state where the pipe member is removed from the same example.

FIG. 3 is a plan view showing a state where the pipe member is attached to the same example.

[Explanation of symbols]

10 ... Scaffolding hook device, 11 ... Tread, 12 ... Plate part, 1
3 ... Hook part, 14 ... Recessed part, 15 ... Pipe member, 16 ...
Stop pin, 17 ... head, 18 ... holding pin, 19 ... head, 2
0 ... Movable member, 21 ... Long hole, 22 ... Wedge portion, 23 ... Weight portion.

Claims (2)

[Claims] 1. A hook portion which can be hooked on a horizontally extending pipe member from above, a stop pin provided on an upper portion of one end of the hook portion, and a holding pin provided below the stop pin of the hook portion. By fitting a long hole in the stopper pin, a movable member that is attached so as to be vertically movable and swingable with respect to the hook portion, and a lower portion of the movable member is formed into a substantially triangular shape that becomes narrower toward the bottom. It is possible to push the pipe member between the pressing pin and the pipe member from above, and to move the pipe member once to raise and swing it to lower it so that the pressing pin is positioned on the opposite side of the pipe member. A hook device for scaffolding that consists of a wedge that can be formed. 2. The scaffolding hook according to claim 1, further comprising a weight portion provided on an upper portion of the movable member, the weight portion preventing the wedge portion from being inadvertently raised when the wedge portion is positioned on the side opposite to the pipe member of the holding pin. apparatus.