JP2577251Y2 - Connection structure of welded wire mesh - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure of a welding wire mesh for connecting the welding wires at a predetermined angle.

[0002]

2. Description of the Related Art A welding wire mesh formed by integrally welding iron wires arranged in a grid at their intersections,
For example, in order to prevent collapse of a slope formed by embankment, it has been used in place of a conventionally accumulated sandbag or the like. As shown in FIG. 5, in this type of conventional welding wire mesh 100, a vertical line 101 and a horizontal line 102 arranged in a grid are integrally welded and fixed at their intersections. What formed the annular part 103 was common. And two pieces of welding wire mesh 1
00 are arranged symmetrically with the horizontal line 102 facing each other, and the annular portions 103 are superposed with the annular portions 103 shifted to the left and right, and the shaft rod 104 is inserted into each annular portion 103, thereby forming two welded metal meshes 100. , 100 are rotatable about the shaft bar 104, and the upper welding wire mesh 100 can be adjusted to match the angle of the slope.

[0003]

However, in the above-described welding wire mesh 100, the processing of the annular portion 103 formed at one end of each vertical wire 101 is extremely troublesome, and the annular shapes of the overlapping welding wire meshes 100, 100 are extremely difficult. Shaft rod 1 in part 103
It is hard to say that the work for inserting the 04 is good in workability, and this has been a factor of increasing the cost of the work on site.

[0004] When the shaft 104 is inserted into the annular portion 103 of the welded wire mesh 100 so as to be rotatable, the two welded wire meshes become 360 around the shaft 104.
The positional relationship can be freely set within the range of degrees, and each welding wire mesh 100 can be set at a desired angle according to the angle of the slope.
Was required to be fixed by another means and then embanked, which was very troublesome.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a connecting structure of a welding wire mesh according to the present invention is constructed such that iron wires arranged in a grid are integrally welded at their intersections, and one end of each vertical line or horizontal line. The welded wire mesh formed by bending the horizontal and vertical lines between the two sides into a substantially rectangular shape to form a bent portion is superimposed vertically symmetrically while being shifted to the left and right, and the respective bending of the upper and lower welded wire meshes The present invention is characterized in that a shaft rod is inserted between the portions, and the upper welding wire mesh can be freely inclined in accordance with the angle of the bent portion with the shaft rod as a fulcrum.

[0006]

In the connection structure of the above-mentioned welded wire mesh, a bent portion is formed between the vertical lines or the horizontal lines or the vertical lines at one end side of the welded wire mesh, so that the welded wire mesh is shifted right and left. When vertically symmetrically overlapped in this state, a substantially rectangular gap is formed between the bent portions of the upper and lower welded metal meshes, and the insertion of the shaft rod is facilitated. In accordance with the bending angle, the inclination angle is regulated to a desired angle by abutment of a horizontal line or a vertical line of an end portion which is welded orthogonally to each bent portion, and the structure is connected without further opening.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a connection structure of a welding wire net according to an embodiment of the present invention, and FIG. 2 is a schematic longitudinal sectional view thereof. The connection structure of the welding wire mesh of the present invention is, for example, a structure in which the welding wire mesh 2 is securely connected at a predetermined angle along the slope to the embankment to be laid and the welding wire mesh 1 buried horizontally.

In each of the welding wire meshes 1 and 2, a plurality of vertical lines 3 and a plurality of horizontal lines 4 each of which is an iron wire are arranged in a lattice pattern.
And the intersection of the horizontal lines 4 are welded together, respectively.
Between the horizontal lines 4 and 4 at one end on the slope side of each vertical line 3, a bent portion 5 projecting in a substantially rectangular triangular shape is bent. In one welding wire mesh 1 buried horizontally with the embankment, each horizontal line 4 is welded to a lower side of each vertical line 3, and each bent portion 5 projects toward the surface side. Further, each curved portion 5 of the welding wire mesh 2 is formed on the welded side of each horizontal wire 4. Here, the bent portion 5 having a substantially rectangular shape has a concept including not only the above-described substantially triangular shape but also a substantially semicircular curved shape without an angle.

Further, at the other end of each vertical line 3, a hook portion 6 which is bent in a substantially U-shape is provided. The hook 6 is connected to a synthetic resin net 7 to be described later, which is buried horizontally with the embankment.

The thickness of each of the vertical line 3 and the horizontal line 4 is 5
~ 8mm, the size of the formed mesh is about 50 ~ 100m
m are preferably used. Since the welding wire meshes 1 and 2 are both buried in the soil, it is desirable that a high hard wire that is not easily bent by the earth pressure be used and that the surface be sufficiently rust-proofed.

As shown in FIG. 2, the welding wire meshes 1 and 2 are arranged such that the horizontal lines 4 and the protruding sides of the bent portions 5 face each other, and the bent wire portions 5 are shifted left and right, respectively. , 2 are superimposed. In this state, a substantially rectangular gap is formed between the bent portions 5, the shaft rod 8 is easily inserted into the gap, and the upper welding wire mesh 2 is
The connection structure is expanded in an inclined state having an angle θ with the shaft rod 8 interposed therebetween as a fulcrum. The shaft 8 is preferably made of an iron wire of the same quality as the vertical wire 3 or the like.

In the connection structure of the welding nets 1 and 2 of the present invention,
As shown in FIG. 2, until the folded piece 5a of the bent portion 5 of the welding wire mesh 1 buried horizontally and the horizontal line 4 welded to the outermost edge of each vertical wire 3 of the expanded welding wire mesh 2 contact each other as shown in FIG. Because of the close proximity, the welding wire mesh 2 is fixed at a desired angle θ without rotating any more about the shaft 8 and the rotation is regulated. Therefore, in order to set the general inclination angle θ of the slope formed by the embankment to, for example, a 5-minute gradient, that is, about 63.4 degrees, the outer diameters of the vertical line 3, the horizontal line 4, and the shaft 8 should be 6 mm. Then, as shown in FIG.
When the length L of the folding piece 5a is about 30 mm, the inclination angle α with respect to the horizontal plane is about 58 degrees, and the bending angle β of the bent portion 5 is about 63 degrees. For example, the length L of the folding piece 5a is about 30 mm, the inclination angle α is about 49 degrees,
If the bending portion 5 is formed so that the bending angle β of the welding wire mesh 2 becomes about 90 degrees, the inclination angle θ of the welding wire mesh 2 becomes about 45 degrees, and
For example, the length L of the folding piece 5a is about 30 mm, and the inclination angle α
If the bent portion 5 is formed so that the bending angle β of the bent portion 5 is approximately 64 degrees, the inclination angle θ is approximately 90 degrees. As the inclination angle of the slope is approximately 45 to 90 degrees, if the length L of the bent piece 5a of the bent portion 5 is 30 mm, the inclination angle α is approximately 49 to 74 degrees, and the bending angle β is approximately 6
By forming the bent portion 5 so as to be in the range of 4 to 90 degrees, the welding wire mesh 2 is reliably connected to the welding wire mesh 1 in a state where the welding wire mesh 2 is set to a desired tilt angle θ and is matched with the slope angle of the slope. It becomes possible.

In addition, the gap between the bent portions 5 of the welding meshes 1 and 2 is wide and substantially rectangular in a state before the connection, in which the welding meshes 2 are merely overlapped horizontally, so that the shaft rod 8 can be inserted. The connection structure is very simple, a desired inclination angle θ can be obtained only by expanding the welding wire mesh 2, and workability on site is greatly improved.

The embankment formation using the connection structure of the welding wire meshes 1 and 2 is simply performed as follows. That is, as shown in FIG. 3, the horizontal wire 4 is disposed on the ground 10 on the surface side and the bent portion 5 is disposed on the side of the slope to lay the welding wire 1, and the horizontal wire 4 of the welding wire 2 is bent downward. The portions 5 are overlapped with each other slightly shifted left and right from the bent portions 5 of the welded wire mesh 1, and the shaft wire 8 is inserted between the bent portions 5 to lift the welded wire mesh 2, and the shaft 8 is used as a fulcrum. The welding wire mesh 2 is expanded at a predetermined inclination angle with respect to the welding wire mesh 1. On the other hand, a band 9 around which the end of the synthetic resin net 7 is wound is disposed on the hook 6 at the other end of the vertical line 3, and the mesh of the synthetic resin net 7 is inserted into each vertical line 3 respectively. (See FIG. 2). The synthetic resin net 7 is for preventing the collapse of earth and sand. For example, a polyester yarn, a nylon yarn, a vinylon or the like, a plain yarn of various synthetic fiber filaments, a twist yarn, etc., is woven in a plain weave, and is made of polyvinyl chloride or acrylic resin. The size of the mesh is 5 to 40 mm, preferably about 8 to 25 mm, and the width of the raw fabric of the woven mesh is about 1.5 to 2.5 m. Those having a thickness of about 10 to 30 m) are preferably used.

When the welded metal meshes 1 and 2 are connected by being spread at a predetermined angle, and the welded metal mesh 1 and the synthetic resin mesh 7 are connected via the band 9, as shown in FIG. The earth and sand 11 are embanked and pressure is applied. At this time, since the welding wire mesh 2 has a structure that does not spread more than the predetermined inclination angle θ with respect to the welding wire mesh 1, even if the earth pressure is applied to the welding wire mesh 2 to spread it, the welding wire mesh 2 becomes more than a predetermined angle. There is no fear of spreading, and the slope 12 is formed at the connection angle of the welding wire mesh 2. Thereafter, the above operation is repeated to set the slope 12 having a predetermined height.
The embankment with is created.

As shown in FIG. 5, a bent portion 51 is also provided at the other end of each vertical line 3, like a welded wire net 21 rising along the slope.
May be integrally formed. When such a welding wire mesh 21 is connected to the welding wire mesh 1, the bent portion 51 is located on the horizontal line 4 below the welding wire mesh 21 connected to the welding wire mesh 1 stacked on the torsion soil 11 and the shaft. The welding wire nets 21 are also reliably connected to each other via the rod 8. In this case, even if the piled embankment collapses, the connection between the respective welded metal nets 21 is ensured, so that the action of stopping outflow of earth and sand is enhanced.

[0018]

As is apparent from the above description, in the connection structure of the welding mesh of the present invention, the shaft rod is easily inserted into the gap between the bent portions of the overlapping welding mesh, and the upper welding mesh is Corresponding to the shape of the bent part with the shaft rod as a fulcrum, the inclination angle is regulated by the horizontal line or vertical line of the end perpendicular to the bent part, and the welded wire mesh is connected without being easily expanded beyond the desired angle. This has the effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a connection structure of a welding wire net according to an embodiment of the present invention.

FIG. 2 is a side view of the connection structure of the welding wire mesh of the present invention.

FIG. 3 is a schematic cross-sectional view showing an example of embankment formation using the welding wire mesh connection structure of the present invention, showing a state of being laid on the ground.

FIG. 4 is a schematic cross-sectional view showing an example of embankment formation using the connection structure of the welding wire mesh of the present invention, showing a slope formation state.

FIG. 5 is a schematic cross-sectional view showing an example of embankment formation using the connection structure of a welding wire net according to another example of the present invention.

FIG. 6 is a schematic side view showing a connection structure of a conventional welding wire mesh.

[Explanation of symbols]

 1, 2 Welded wire mesh 3 Vertical line 4 Horizontal line 5 Bend 8 Shaft

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-131724 (JP, A) JP-A-4-313617 (JP, A) JP-A-1-90843 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) E02D 17/18

Claims (1)

(57) [Scope of request for utility model registration] An iron wire arranged in a lattice is integrally welded at the intersection thereof, and each vertical line or horizontal line at one end of the horizontal line or between the vertical lines is bent into a substantially rectangular shape to form a bent portion. The formed welding wire mesh is vertically symmetrically overlapped with each other while being shifted to the left and right, and a shaft rod is inserted between the bent portions of the upper and lower welding wire meshes, and the upper welding wire mesh is used with the shaft rod as a fulcrum. Welded wire mesh connection structure that can be tilted freely according to the angle of the bent part.