JPH1162257A - Safety net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily connect adjacent nets without any trouble so that no large clearance is formed therebetween the plurality of safety nets are connected to each other. SOLUTION: Another edge rope 1' is bridged parallel to each side of a frame in the frame of a conventional net structure, an edge rope 1 to form an outer frame of each net 10 is lapped with a part of a net wire 2 between inner edge ropes 1', and the edge rope 1 of the outer frame of one net 10 is connected to the inner edge rope 1' of the other net 10 by a binding rope 3. In the connected nets, the parts of the net wires 2 are lapped between the edge rope 1 of the outer frame and the inner edge rope 1' are lapped with each other, the parts are of the same mesh as the unit mesh formed by the net wires 2, and no part of larger mesh than the unit mesh formed by the net wires 2 are present in the whole net irrespective of the size of the clearance of knots of the binding ropes 3. The clearance of knots need not be cared, and the connection can be easily achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety net for receiving a falling object used at a construction site or the like.

[0002]

2. Description of the Related Art In a construction site where a civil engineering structure or building is newly constructed or renovated, when working at a high place, waste such as waste materials and rubble generated during the work falls and humans passing through the vicinity. A safety net will be set up to catch them in order to avoid any danger.

[0003] This safety net 20 shown in FIG.
A mesh yarn 2 having a smaller wire diameter than the edge rope 1 is bridged vertically and horizontally in a rectangular frame formed by the edge rope 1, and these mesh yarn 2 and the edge rope 1 are formed of tetron, nylon, polyethylene, or the like. Have been.

[0004] Some of the mesh yarns 2 form a mesh that is not parallel to the edge rope 1 as shown in an enlarged view in FIG.
In the drawing of the present paper, a mesh shape parallel to the edge rope 1 is shown for simplicity of illustration.

[0005]

The above-described safety net 20 has the following problems.

If the area where the net 20 should be stretched is large and cannot be covered by only one net 20, a plurality of unit safety nets 20 are arranged in a grid, and as shown in FIG. 1 is tied and connected by a tying rope 3. At this time, if the interval of the knot of the tying rope 3 is large, the above-mentioned waste material and rubble fall from that portion and it is dangerous, so the interval of the knot is reduced. Must do it.

[0007] However, if the interval of the knots is reduced, the number of knots increases, which is extremely troublesome work. It is difficult to perform such a troublesome work at the construction site in terms of work efficiency. It is a matter.

SUMMARY OF THE INVENTION It is an object of the present invention to easily and easily connect a plurality of safety nets so that adjacent nets do not have a large gap.

[0009]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a method in which a rectangular frame is formed by an edge rope.
In a safety net formed by bridging the net yarn vertically and horizontally,
An edge rope was bridged in the frame in parallel with each side of the rectangle.

In order to connect such nets, a portion of the net yarn between the edge ropes of the nets and the inner edge ropes parallel thereto is overlapped.

Then, the outer edge rope of one net and the inner edge rope of the other net are connected with a binding rope.

[0012] Then, in the connected nets, since the portion of the net yarn between the outer edge rope and the inner edge rope overlaps, the net yarn is formed regardless of the size of the knot interval of the binding rope. Since the mesh portion larger than the mesh of the unit to be removed is eliminated, and the mesh portion at the joint portion is smaller than the conventional mesh portion, the drop prevention effect is increased. In addition, since the mesh yarns overlap, the strength of catching the falling object at that portion also increases.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In the safety net 10 of this embodiment shown in FIG. 1, an outer frame is formed in a rectangular shape by an edge rope 1, and a net yarn 2 runs vertically and horizontally in the frame. In parallel with each side of the above, another edge rope 1 'is entangled with the net yarn 2 to bridge.

In order to connect such nets 10, as shown in FIG. 2 (a), an edge rope 1 forming an outer frame of each net 10 and an inner edge rope 1 'parallel to the edge rope 1 are formed. The portions of the net yarn 2 are overlapped.

[0015] Then, as shown in (b), the edge rope 1 of the outer frame of one net 10 and the edge rope 1 'inside the other net 10 are connected by a binding rope 3.

Then, in the connected nets, since the portion of the net yarn 2 between the edge rope 1 of the outer frame and the inner edge rope 1 'overlaps, the portion is formed by the unit formed by the net yarn 2. No matter what the size of the knots of the tying rope 3, there is no mesh portion larger than the mesh of the unit formed by the mesh yarn 2 in the entire net. If the mesh is displaced in the portion where the mesh is shifted, the mesh in that portion is rather smaller than in the related art, and the drop prevention effect is increased.

Therefore, if the net 10 of this embodiment is connected, it is not necessary to worry about the knot interval, and a knot with a large interval may be used.

In connection with the fact that the mesh is reduced due to the displacement of the mesh at the portion where the net 10 overlaps, as shown in FIG.
If the distance of the outer frame from the edge rope 1 is obtained by multiplying the interval between the adjacent net yarns 2 and 2 of each net 10 by an integer and adding half of the interval, the portion where the net 10 is overlapped is obtained. Of the nets 2 formed in each of the nets 10 is just half of the interval of the original nets 2 of each net 10, so that the single net 10
In this case, the effect of preventing the fall is increased. By the way, (a)
Then, the distance from the edge rope 1 of the outer frame of the edge rope 1 'bridging into the inside is set to 4 which is the distance between adjacent ones of the original net yarn 2.
FIG. 1B schematically shows a half-size image, and FIG.
Regarding the edge rope 1 and the net yarn 2 forming 0, those of the net 10 laid on the lower side are shown in black, and those of the net 10 laid on the upper side are shown in white.

[0019]

As described above, since the present invention is configured as described above, the connecting portions of adjacent nets are fine meshes equal to or larger than the internal meshes, and the effect of preventing falling is increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment.

FIGS. 2A and 2B are diagrams of an embodiment showing usages.

FIG. 3B is a diagram illustrating another example of use of the embodiment in which a part of FIG.

FIG. 4B is a diagram of a conventional example showing a partially enlarged view of FIG.

FIG. 5 is a diagram showing a defect in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Edge rope (of outer frame) 1 'Edge rope inside 2' Thread 3 Bundle rope 10, 20 Safety net

Claims (1)

[Claims] 1. A safety net formed by bridging a net thread vertically and horizontally in a frame formed in a rectangular shape by an edge rope, wherein an edge rope is bridged in the frame in parallel with each side of the rectangle. Characterized by a safety net.