JPH0614234U - Welded wire mesh connection structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Welded wire nets 1 and 2 can be easily connected, and welded wire net 1
It is an object of the present invention to provide a connecting structure in which the welding wire net 2 does not spread from a desired angle. [Structure] The horizontal lines 4 of the welding wire nets 1 and 2 and the projecting sides of the respective bending portions 5 are arranged to face each other, and the welding wire nets 1 and 2 are overlapped with each other while the respective bending portions 5 are displaced to the left and right, The shaft rod 8 is easily inserted into the substantially rectangular gap formed between the curved portions 5, and the welding wire net 2 on the upper side is spread at an inclination angle θ with the shaft rod 8 sandwiched between the curved portions 5 as a fulcrum. Therefore, the inclination angle θ is regulated by the contact between the lateral line 4 and the curved portion 5 at the end portion, so that the connecting structure is obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a welded wire mesh connection structure for connecting welded wire meshes at a predetermined angle.

[0002]

[Prior art]

 A structure in which welding wire nets formed by integrally welding iron wires arranged in a lattice at their intersections are connected to each other, for example, to prevent collapse of the slope formed by embankment It has been replaced with. As shown in FIG. 5, in this type of conventional welded wire mesh 100, vertical lines 101 and horizontal lines 102 arranged in a lattice are integrally welded and fixed at respective intersections, and, for example, at one end of each vertical line 101. It is common that the annular portion 103 is formed. Then, the two welding wire nets 100 are vertically symmetrically arranged with the horizontal lines 102 facing each other, and the annular portions 103 are overlapped with each other leftward and rightward, and the shaft rods 104 are inserted into the respective annular portions 103. By doing so, the two welding wire meshes 100, 100 can be rotated about the shaft rod 104, and the upper welding wire mesh 100 can be adjusted to match the angle of the slope.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned welded wire net 100, the machining of the annular portion 103 formed at one end of each vertical line 101 is extremely troublesome, and the shaft rod 104 is provided in each annular portion 103 of the superposed welded wire nets 100, 100. It is hard to say that the work to insert is good workability, and this has been a factor in increasing the cost of field work.

Further, when the shaft rod 104 is inserted into the annular portion 103 of the welded wire nets 100 to be overlapped so as to be rotatable, both the welded metal nets 100 can be freely positioned within a range of 360 degrees around the shaft rod 104. The relationship has come to be taken, and it is very troublesome to fix each welding wire mesh 100 at a desired angle according to the angle of the slope by another means before embankment.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the connection structure of the welded wire mesh of the present invention is such that iron wires arranged in a grid pattern are integrally welded at their intersections, and the horizontal lines or the vertical lines on one end side of each vertical line or horizontal line are substantially Welded wire nets that are bent into a V shape to form bent parts are stacked symmetrically in the left and right directions, and a shaft rod is inserted between the bent parts of the upper and lower welded wire nets. It is characterized in that the upper welding wire mesh can be freely tilted in correspondence with the angle of the bent portion with the shaft rod as a fulcrum.

[0006]

[Action]

 In the above-mentioned welded wire net connection structure, since a bending process is applied between the horizontal lines or the vertical lines on one end side of the welded wire nets or between the vertical lines to form a substantially V-shaped bent portion, the upper and lower parts are vertically shifted in a state of being shifted left and right. When they are symmetrically overlapped, a substantially rectangular gap is formed between the bent portions of the upper and lower welded wire meshes, making it easy to insert the shaft rod, and the upper welded metal wire mesh is bent at each bent portion with the shaft rod as a fulcrum. Depending on the angle, the horizontal angle or vertical line of the end portion welded at right angles to each bent portion causes the inclination angle to be regulated to the desired angle, and the structure is connected without opening further.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a welding wire mesh connection structure according to an embodiment of the present invention, and FIG. 2 is a schematic vertical sectional view thereof. The connection structure of the welded wire mesh of the present invention is, for example, a structure in which the welded wire mesh 2 is surely connected at a predetermined angle along the slope to the welded wire mesh 1 that is buried horizontally with the embankment to be constructed.

In each of the welding wire nets 1 and 2, a plurality of vertical wires 3 and a plurality of horizontal wires 4 which are iron wires are arranged in a grid pattern, and the intersections of the vertical wires 3 and the horizontal wires 4 are welded integrally. Between the horizontal lines 4 and 4 at one end on the slope side of each vertical line 3, a bent portion 5 protruding in a substantially triangular V shape is formed by bending. One of the welded wire nets 1 which is embedded horizontally with the embankment has horizontal lines 4 welded below the vertical lines 3, and bent portions 5 project toward the front side. There is. Further, each curved portion 5 of the welding wire net 2 is formed on the welded side of each horizontal wire 4. Here, as the substantially V-shaped bent portion 5, not only the above-mentioned substantially triangular shape but also a substantially semi-circular curved shape without an angle is a concept.

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

It is preferable to use each of the vertical wires 3 and the horizontal wires 4 having a thickness of 5 to 8 mm and a mesh size of about 50 to 100 mm. Since both of the welding wire nets 1 and 2 are used by being embedded in the soil, it is desirable to use high-hardness wire that is difficult to bend due to earth pressure and to have the surface sufficiently treated for rust prevention.

As shown in FIG. 2, the welding wire nets 1 and 2 are arranged such that the projecting sides of the horizontal lines 4 and the bent portions 5 are opposed to each other, and the bent wire portions 5 are laterally displaced from each other. 1, 2 are overlaid. 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 net 2 is sandwiched between the bent portions 5 and the shaft rod 8 is used as a fulcrum. As a result, the connection structure is expanded in an inclined state with an angle θ. The shaft rod 8 is preferably an iron wire of the same quality as the vertical wire 3 and the like.

In the connection structure of the welding wire nets 1 and 2 of the present invention, the welding piece 5 a of the bent portion 5 of the welding wire net 1 which is horizontally embedded and the outermost edge of each vertical line 3 of the expanded welding wire net 2 are welded. As shown in FIG. 2, the horizontal lines 4 are brought close to each other, so that the welding wire mesh 2 is fixed at a desired angle θ without further rotation with the shaft rod 8 as a fulcrum, and the rotation is restricted. It 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 rod 8 are set to 6 mm. As shown in FIG. 2, 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 is about 58 degrees. The bending angle β of the curved portion 5 is about 63 degrees. In addition, for example, if the bent portion 5 is formed so that the length L of the folded piece 5a is about 30 mm, the inclination angle α is about 49 degrees, and the bent angle β of the bent portion 5 is about 90 degrees, The inclination angle θ is about 45 degrees, and for example, the length L of the folding piece 5a is about 30 mm, the inclination angle α is about 74 degrees, and the bending angle β of the bending portion 5 is about 64 degrees. If the part 5 is molded, the inclination angle θ becomes about 90 degrees. Since a suitable inclination angle of the slope is about 45 to 90 degrees, if the length L of the folding piece 5a of the bending portion 5 is 30 mm, the inclination angle α is about 49 to 74 degrees and the bending angle β is By forming the bent portion 5 so as to be in the range of about 64 to 90 degrees, the welding wire mesh 2 can be securely attached to the welding wire mesh 1 with the inclination angle θ of the welding wire mesh 2 being matched with the inclination angle of the slope. Can be connected to.

Further, since the gap between the bent portions 5 of the welding wire nets 1 and 2 has a wide rectangular shape in a state before being connected by simply overlapping the welding wire nets 2 horizontally, the shaft rod 8 can also be inserted. It is very simple, and the desired inclination angle θ can be obtained simply by expanding the welding wire net 2 and the work structure on the site is greatly improved.

The embankment using the connection structure of the above-mentioned welded wire nets 1 and 2 is easily performed as follows. That is, as shown in FIG. 3, the horizontal wire 4 is arranged on the surface side and the bent portion 5 is arranged on the slope side to lay the welding wire net 1 on the ground 10, and the horizontal wire 4 of the welding wire net 2 is bent downward. The portions 5 are overlapped with each other with the left and right sides slightly displaced from the bent portions 5 of the welded wire net 1, and the shaft rod 8 is inserted between the bent portions 5 and the welded wire net 2 is lifted. The welding wire mesh 2 is spread at a predetermined inclination angle with respect to the welding wire mesh 1. On the other hand, a strip 9 around which the end of a synthetic resin net 7 is wound is arranged 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. Wear and connect (see Figure 2). The synthetic resin net 7 is used to prevent the collapse of earth and sand. For example, polyester, nylon, vinylon, etc. of various synthetic fiber filaments, such as aligned yarns and twisted yarns, are plain-woven, and are 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 woven net is about 1.5 to 2.5 m. The length of about 10 to 30 m) is preferably used.

When the welding wire nets 1 and 2 are spread at a predetermined angle and connected, and when the welding wire net 1 and the synthetic resin net 7 are connected via the strip 9, as shown in FIG. Fill the earth and sand 1 and apply pressure. At this time, since the welded wire mesh 2 does not spread beyond the predetermined tilt angle θ with respect to the welded wire mesh 1, even if earth pressure is applied to the welded wire mesh 2 to spread it, the welded wire mesh 2 has a predetermined angle or more. The slope 12 is formed at the connection angle of the welded wire mesh 2 without the fear of spreading to After that, the above-mentioned work is repeated to form the embankment having the slope 12 having a predetermined height.

Further, like the welded wire net 21 standing up along the slope shown in FIG. 5, the bent portion 51 may be integrally formed at the other end of each vertical line 3. When such a welded wire net 21 is connected to the welded wire net 1, the bent portion 51 is positioned on the horizontal line 4 below the welded wire net 21 connected to the welded wire net 1 piled up on the earth and sand 11 which is pressed. The welding wire nets 21 are also reliably connected to each other via the shaft 8. In this case, since the welded wire nets 21 are surely connected to each other even if the piles of the piles are collapsed, the action of suppressing the outflow of the earth and sand is enhanced.

[0018]

[Effect of device]

 As is apparent from the above description, in the welded wire mesh connection structure of the present invention, the shaft rod is easily inserted into the gap between the bent portions of the welded wire meshes to be overlapped, and the upper welded wire mesh is supported by the shaft bar as a fulcrum. Corresponding to the shape of the bent portion, the angle of inclination is regulated by the horizontal line or the vertical line at the end portion orthogonal to the bent portion, and the effect is that the welded wire nets are connected to each other without being easily spread over a desired angle.

[Brief description of drawings]

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

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

FIG. 3 is a schematic cross-sectional view showing an example of construction of embankment using the welded 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 forming an embankment using the welded wire mesh connection structure of the present invention, showing a slope forming state.

FIG. 5 is a schematic cross-sectional view showing an example of embankment construction using a welded wire mesh connection structure of another example of the present invention.

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

[Explanation of symbols]

 1, 2 Welded wire mesh 3 Vertical line 4 Horizontal line 5 Bending part 8 Axis rod

Claims (1)

[Scope of utility model registration request] 1. An iron wire arranged in a grid pattern is welded together at their intersections, and a horizontal line at one end of each vertical line or a horizontal line or between vertical lines is bent into a substantially V shape to form a bent portion. The welded wire nets formed are vertically symmetrically stacked in a state of being shifted to the left and right, and a shaft rod is inserted between respective bent portions of the upper and lower welded wire nets, and the upper welded metal wire net is formed by using the shaft bar as a fulcrum. Welded wire mesh connection structure that can be tilted freely according to the angle of the bend.