JPH0638914Y2 - Metal net basket for stone filling - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to improvement of a metal net basket for stone filling.

[Conventional technology and its problems]

As a method of constructing a foundation for revetment, land reclamation work, etc., a method of putting a metal net basket filled with crushed stones into water is known. It is necessary that such a metal net basket is easily assembled on site and has a strength (shape retention) that does not lose its shape in the process of being put into a hoisting construction site after being put into crushed stone.

However, in this type of conventional metal net cage, a reinforcing wire is inserted into the ridgeline (longitudinal ridgeline when the cage is formed) of the single wire mesh that forms the bottom, side and lid, and the extra lengths at both ends are bent. It was only Therefore, after the assembly is completed, when the stone is put in, the lid and the side are tightly closed, and the crane is hoisted for installation, when the weight of the stone causes the reinforcing wire to be pulled in the axial direction, the bent portion opens. However, there is a problem that the beam effect is lost and the mesh basket is largely deformed, so that the proper mat shape cannot be maintained.

[Means for solving problems]

The present invention solves the above-mentioned problems, does not impair the assembly workability, and prevents the reinforcing wire from coming off from the net cage with a simple structure, and the suspending movement while maintaining a good mat shape. It is intended to provide this kind of metal net basket for seed stone filling that can be performed.

In order to achieve this object, the present invention relates to a rectangular box in which a main wire mesh with a frame wire forming a bottom surface, a side surface and a lid surface and a side wire mesh with a pair of frame wires are combined and a required ridge line portion is reinforced with a reinforcing wire. -Shaped metal net basket, both ends of the reinforcing wire passed through the wire net are bent so as to sandwich the frame wire, and the bent part is composed of the base part and the free end part, and the base part and the free end part. The annular piece having an inner diameter smaller than the outer surface interval is fitted, and the free end portion ahead of the fitted portion of the annular piece is bent to the open side at the required angle.

Here, the annular piece includes not only a short pipe having a perfect circular cross section, an elliptical cross section, etc., but also a ring made of a wire rod, and the end of the bent portion can be expanded outward as necessary,
Or it will be folded further.

〔Example〕

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

FIGS. 1 to 4 show an embodiment of a metal net basket for stone filling according to the present invention. In FIG. 2, reference numeral 2 designates a bottom surface A, side surfaces B, B'and a lid surface C. The main wire mesh,
Reference numerals 3 and 3 denote a pair of double-sided wire meshes for the other side surface, the peripheral edges of which are reinforced by the frame wire 4.

The main wire mesh 2 is unfolded on the ground, and both side wire meshes 3, 3 are arranged at a portion corresponding to the bottom surface A and are joined to the ridgeline of the bottom surface A.
Reinforcing wires 5,5,5 such as galvanized iron wires are inserted into the main wire mesh 2 along at least the longitudinal ridges of the bottom surface A and the side surfaces B and B'and the side surface B and the cover surface C.

The main wire mesh 2 is bent to have a rectangular shape,
By connecting the line portions of B and B'to the side edges of the wire meshes 3 and 3'on both sides, the net cage 1 having the open lid 1a is formed as shown in FIG. The lid 1a is closed as shown in FIG. 1b by inserting the stone material 8 into the net basket 1 and then connecting each edge to the upper edge of the side wall wire net.

Each of the reinforcing wires 5, 5, 5 is longer than the net cage length l, and both ends thereof extend outside the frame wire 4 by a required length. The both ends of the straight line shown in Fig.
As shown in FIG. 1, FIG. 1b, and FIG. 3, the frame wire 4 is bent 180 degrees so as to sandwich the frame wire 4, and the bent portion 6 is formed. The bent portion 6 is composed of a base side 60 and a free end portion 61.
The annular piece 7 is fitted on the 61. This annular piece 7
A short pipe having a true circular cross section as shown in FIG. 4 (a), a short pipe having a non-true circular cross section such as an ellipse and an oval as shown in FIG. 4 (b), (c), (d). ) Such as a ring made of a thick wire rod is used.

In any case, the inner diameter (long diameter in the case of an astigmatic circular cross section) d of the annular piece 7 and the outer surface distance d ′ of the bent portion 6 are d ′> d. Since the repulsive force of the portion 9 acts and the base side 60 and the free end side 61 respectively press the inner surface 70 against the annular piece 7 and make close contact with each other, the annular piece 7 does not fall off.

Then, in order to make the fitted state more reliable and prevent the coming off, the post-fitted free end side 61 of the annular piece 7 as shown in FIG.
This terminal is bent appropriately in a direction away from the base side 60 to form a flared terminal 62, or the terminal is bent in the opposite direction as shown in FIG. 3 (b) to form a folded terminal 62 '.

[Operation of Example]

The present invention not only bends both ends of the reinforcing wires 5, 5, 5 inserted along the longitudinal ridge of the mesh basket 1 as described above so as to surround half the circumference of the frame wire 4, but also the base of the bent portion 6. An annular piece 7 having an inner diameter d smaller than an outer surface distance d ′ formed by the base side 60 and the free end portion 61 is fitted to the side 60 and the free end portion 61, and the ring piece 7 is fitted to Free end 61
Is bent to the opening side outside the required angle. Therefore, due to the elastic force of the bent portion 6, the annular piece 7 is brought into close contact with the base side 60 and the free end portion 61, and the longitudinal movement of the annular piece 7 causes the frame wire 4 and the outer open bent portion 62 of the free end portion 61 to move. To 62 'respectively. Therefore, the reinforcing wire 5 and the frame wire 4 are firmly assembled, and after the stone 8 is put into the net basket 1, the lid is closed.
Even if a strong pulling force acts on the reinforcing wires 5, 5, 5 due to the weight of the stone when the 1a is closed and lifted by a crane or the like, the opening of the bent portion 6 is restricted by the annular piece 7, and the frame is kept as in the conventional case. The wire 4 does not extend and spread around as a fulcrum. Therefore, the effect as a beam can be sufficiently exerted, and even if the net basket 1 is large, it can be transferred to the construction site without being deformed.

The inventor formed a bent part using a zinc-plated iron wire 6 mmφ specified in JIS G3532 as a reinforcing wire, hooked the rounded part of the bent part with a hook, and directly held the base side end with a chuck of a testing machine to perform a pulling test. Approximately 182 kg against the average cutting strength of the reinforcing wire of 1237 kg.
So the bent part has been completely extended.

On the other hand, when the short pipe (true circular cross section) of Fig. 4 (a) is used and the terminal specifications of Fig. 3 (c) are used, it is approximately 938kg.
The proof stress of In addition, when the terminal specifications are shown in FIG. 3 (c), a proof stress of 1018 kg is exhibited, and the short pipe (ellipsoidal cross section) of FIG. 4 (b) is used to obtain the terminal specifications of FIG. 3 (b). In some cases, the yield strength was about 657 kg. Therefore, it can be seen that the present invention can provide a net cage having a deformation prevention performance that is at least 3.6 times or more that of the conventional one.

[Effect of device]

According to the present invention described above, the bottom surface A, the side surface B,
Main wire mesh 2 with frame wire 4 constituting B'and lid surface C
Is a rectangular box-shaped metal net cage in which the side wire nets 3 and 3 with the pair of frame wires 4 are joined together and the required ridge line portions are reinforced with the reinforcing wire 5, and both ends of the reinforcing wire 5 are passed through the wire net. Is bent so as to sandwich the frame wire 4, and at the base side 60 and the free end 61 of the bent portion 6, the base side is formed.
An annular piece 7 having an inner diameter d smaller than an outer surface distance d ′ composed of 60 and a free end portion 61 is fitted, and the free end portion 61 ahead of the fitted portion of the annular piece is bent toward the outward opening side at a required angle. Therefore, the elastic force of the bent portion 6 causes the annular piece 7 to come into close contact with the bent portion 6, and the annular piece 7 is restricted from moving in the longitudinal direction by the free end portion 61 and the frame wire 4. Therefore, even if a strong pulling force acts on the reinforcing wire 5 due to the weight of the stone when the stone is packed and then hoisted by a crane, the opening of the bent portion 6 is restricted, and the frame wire 4 does not extend and open. The beam effect can be sufficiently exerted, and the box-like shape for wave-dissipation, rooting, etc. can be stably maintained.
Moreover, formation of the bent portion 6 -fitting of the annular piece 7-
Since the simple work of bending the free end of the bent portion is sufficient, the workability is excellent, and the excellent effect of being simple and inexpensive can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a metal net basket for stone filling according to the present invention, FIG. 1a is a partially enlarged view of the same, and FIG. 1b is a partially enlarged view of a lid closed state, 2 is a perspective view showing a state before assembly, FIGS. 3 (a) and 3 (b) are side views showing a reinforcing wire end structure in the present invention, and FIGS.
(D) is a perspective view showing an embodiment of an annular piece in the present invention. 1 ... Mesh basket, 4 ... Frame wire, 5 ... Reinforcing wire, 6
…… Bending part, 7 …… annular piece.

Claims (1)

[Scope of utility model registration request] 1. A main wire mesh 2 with a frame wire 4 constituting a bottom surface A, side surfaces B, B'and a lid surface C and side wire meshes 3, 3 with a pair of frame wires 4 are joined together to form a desired ridge portion. Reinforcing wire 5
It is a rectangular box-shaped metal net cage reinforced by the above, and both ends of the reinforcing wire 5 passed through the wire net are bent so as to sandwich the frame wire 4, and at the base side 60 and the free end part 61 of this bent part 6. , An annular piece 7 having an inner diameter d smaller than the outer surface distance d ′ constituted by the base side 60 and the free end 61.
The metal net basket for stone filling, characterized in that the free end portion 61 ahead of the annular piece fitting portion is bent to the outward opening side at the required angle.