JPH0586100U - Construction safety fence - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a safety fence in which the width can be adjusted according to the size of the opening and the mounting to the opening is reliable. [Structure] The first fence and the second fence, which are provided with a wire mesh on the frame, are movably connected to each other in a state of being overlapped with each other, and a vertical frame on one side of the first fence and a second fence. Adjusting the width of the entire safety fence by moving the first fence and the second fence relative to each other by attaching the fixing brackets of U-shape in plan view to the other vertical frame. Because you can
Even if the opening size is different, one safety fence can be used. In addition, the safety fence can be fixed to the opening by pressing the U-shaped fixing metal fittings at both ends against the wall end face while sandwiching the wall end of the opening, so the safety fence does not fall. It surely functions as a fall, fall, and flying fall prevention.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a safety fence used during construction work.

[0002]

[Prior Art]

 In the construction work of high-rise buildings, safety fences as shown in Fig. 4 (a) and (b) have been conventionally used to prevent workers from falling into the elevator openings on each floor.

The safety fence shown in FIG. 1 (a) is a frame a with a wire mesh b stretched over it, which is placed on the floor in front of the opening H or is leaned against the wall W for use. In the safety fence shown in FIG. 2B, a plurality of rods c whose lengths can be adjusted are fixed by pressing the ends of both ends of the wall W of the opening H.

[0004]

[Problems to be solved by the device]

 However, conventional wire mesh-type safety fences have the drawback that they cannot be fixed to the wall by simply placing them on the floor or leaning against the wall, and they tend to fall over. There was a problem that it was necessary to prepare several types of fences according to the size of the frontage.

In addition, although the conventional rod-type safety fence has the advantage that the length can be adjusted, since there is a space between the floor surface and the rods and between the rods, the material from this space is used. There is a problem that tools and tools may fall into the opening.

An object of the present invention is to provide a safety fence in which the width can be adjusted according to the opening size of the opening and the attachment to the opening is reliable.

[0007]

[Means for Solving the Problems] The safety fence of the present invention is configured such that a first fence and a second fence having a wire mesh stretched on a frame are movably connected to each other in a state of being overlapped with each other. This is a safety fence for construction work in which a vertical bracket on one side of the first fence and a vertical frame on the other side of the second fence are each equipped with U-shaped fixing brackets in plan view.

Here, two pipes having different outer diameters are attached in parallel to the upper portions of the first fence and the second fence, and the pipe having the smaller outer diameter has the larger outer diameter of the other fence. The first fence and the second fence can be connected to each other so that they can be moved in the width direction.

The fixing metal fitting is formed by connecting two L-shaped members, and the flange interval of the fixing metal fitting can be adjusted by adjusting the length of the overlapping portion of the connecting portion. You can

[0010]

[Action]

 In the building safety fence of the present invention, the width of the entire safety fence can be adjusted by moving the first fence and the second fence in the width direction with respect to each other. Further, the safety fence can be fixed to the opening by pressing the U-shaped fixing metal fittings at both ends against the wall end face while sandwiching the wall end of the opening.

[0011]

【Example】

 1 and 2 are perspective views showing a safety fence according to an embodiment of the present invention. FIG. 1 shows a state in which the width is enlarged, and FIG. 2 shows a state in which the width is reduced.

The safety fence 1 includes a first fence 2 in which a wire mesh 23 is stretched over a frame composed of a vertical frame 21 and a horizontal frame 22, and a first fence 2 in which a wire mesh 33 is stretched over a frame composed of a vertical frame 31 and a horizontal frame 32. It is a combination of two fences 3.

On the first fence 2, fixing brackets 24 having a U-shaped plan view are attached to the upper and lower ends of the vertical frame 21 on one side, and the second fence 3 includes the first fence. U-shaped fixing metal fittings 34 are attached to the upper and lower ends of the vertical frame 31 on the side opposite to 2.

The fixing metal fitting 24 is a combination of two L-shaped members 24a and 24b. The long hole 24c provided in the L-shaped member 24b and the tightening bolt 24d allow the flange spacing between the L-shaped members 24a and 24b. Can be adjusted. Similarly, the fixing metal fitting 34 is also a combination of L-shaped members 34a and 34b with adjustable flange intervals. In order to reinforce the fixing between the fixing metal fittings 24 and 34 and the vertical frames 21 and 31, reinforcing bars 24e and 34e are attached between the upper and lower fixing metal fittings.

Further, a pipe 25 is attached to the upper horizontal frame 22 of the first fence 2, and a pipe 26 having a diameter smaller than that of the pipe 25 is attached to the upper fixing metal fitting 24 in parallel with the pipe 25. A pipe 35 having a diameter larger than that of the pipe 26 is attached to the horizontal frame 32 at the upper part of 3, and a pipe 36 having a diameter smaller than that of the pipe 25 is attached to the fixing metal fitting 34 at the upper part in parallel with the pipe 35. The mutual relationship of these pipes 25, 26, 35, 36 is such that the small diameter pipe 36 of the second fence 3 is inserted into the large diameter pipe 25 of the first fence 2 and the large diameter pipe of the second fence 3 is inserted. The small-diameter pipe 26 of the first fence 2 is inserted in the 35, and when the first fence 2 and the second fence 3 are moved relative to each other, the small-diameter pipes 26, 36 slide in the large-diameter pipes 25, 35. By moving, the first fence 2 and the second fence 3 are kept parallel to each other so that the entire width can be enlarged or reduced.

FIG. 3 is a diagram showing an example of a usage state of the safety fence 1. As shown in the figure, a safety fence 1 is installed in the elevator opening H during construction work to prevent falls, falls, and flying drops. In the installation procedure, first, the flange spacing of the fixing metal fittings 24, 34 is adjusted according to the thickness of the end surface of the wall W. Then, the safety fence 1 is placed between both end faces of the wall W of the opening H, and the fixing metal fittings 24, 34 are attached to the wall W while expanding the width of the safety fence 1 according to the size of the opening of the opening H. Press the end of the wall against the end face of the wall. After that, the tightening screw 37 shown in FIG. 1 is tightened to fix the first and second fences 2 and 3 so that they do not move relative to each other. As a result, the safety fence 1 is fixed to the wall W so as to close the entire frontage of the opening H.

When it is desired to provide a safety fence up to a position where the opening H is high, the safety fence 1 can be attached in two steps.

[0018]

[Effect of the device]

 The construction safety fence of the present invention has the following effects.

Since the width of the entire safety fence can be adjusted, even if the opening size of the opening is different, one safety fence can be used.

Since the safety fence can be fixed to the opening by the fixing metal fitting, the safety fence does not fall down, and it surely functions as a fall, fall, and flying fall prevention function.

By adjusting the flange spacing of the fixing metal fitting, it can be applied even when the wall thickness of the opening is different.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a width of a safety fence according to an embodiment of the present invention is enlarged.

FIG. 2 is a perspective view showing a state in which the width of the safety fence in FIG. 1 is reduced.

FIG. 3 is a diagram showing an example of a usage state of the safety fence in FIG. 1.

FIG. 4 is a diagram showing an example of a conventional safety fence.

[Explanation of symbols]

 1 Safety fence 2 First fence 3 Second fence 21,31 Vertical frame 22,32 Horizontal frame 23,33 Wire mesh 24,34 Fixing metal fittings 24a, 24b, 34a, 34b L-shaped member 24c Long hole 24d Tightening bolt 24e, 34e Reinforcing bar 25, 26, 35, 36 Pipe 37 Tightening screw H Opening W Wall

Claims (3)

[Scope of utility model registration request] 1. A first fence and a second fence in which a wire mesh is stretched over a frame.
Of the first fence and the vertical frame on the other side of the second fence are U-shaped in plan view. Safety fence for construction work with fixing metal fittings. 2. Two pipes having different outer diameters are attached in parallel to the upper part of the first fence and the second fence in which the wire mesh is stretched on the frame, and the pipe having the smaller outer diameter is placed outside the other fence. The safety fence for construction work according to claim 1, wherein the first fence and the second fence are connected to each other so as to be movable in the width direction by being inserted into a pipe having a larger diameter. 3. The fixing metal fittings attached to the first fence and the second fence are made by connecting two L-shaped members, and the length of the overlapping portion of the connecting portion is adjusted. 3. The flange spacing of the fixing metal fitting is adjustable.
Safety fence for the listed construction work.