JP2660230B2 - Spiral connection line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helical connecting line used for connecting a wire net or the like.

[0002]

2. Description of the Related Art For example, a square gabion (futon basket) as shown in FIG. 8 is used for earth retaining work on a slope, revetment work, riverbed maintenance work and the like. This gabion is assembled in a cage shape by connecting a plurality of wire meshes 1a, 1b, 1c,... Having a predetermined shape and size. Wires are spirally wound to connect the wire meshes. The formed connecting line 2 is used, and the connecting line 2 is used to connect the column lines 3 and 3 of the adjacent wire mesh.
The bone lines 4 and 4 inserted into each other or through the ring or mesh at the end of the row line are connected to each other.

However, the conventional connecting wire 2 has a very small spiral pitch (and therefore has a large number of windings).
Applying a force in the circumferential direction to the wire, gradually advance it along the spiral while rotating it around the central axis, and sequentially insert it into the mesh of the adjacent wire mesh to lock it to the column wires 3 and 3.
The two wire meshes were connected by being wound around the adjacent bone lines 4 and 4. For this reason, a plurality of connecting lines must be rotated by a very large number as a whole before the connecting operation is completed for each ridgeline of the gabion, and there is a disadvantage that the connecting operation is troublesome and time-consuming.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a helical connecting line capable of performing a connecting operation without applying a force in a circumferential direction and rotating around a central axis.

[0005]

In order to solve the above-mentioned problems, the connecting wire of the present invention is formed in a spiral shape with a wire, and the lead angle of the spiral is 45 degrees or more and less than 90 degrees. And apply the front end to the wire mesh connection, and the rear end to the axis.
Can cause rotation and advancement along a helix when pushed in the direction
Those characterized by the the this configured.

[0006] An inclined portion inclined toward the outside of the spiral can be provided at the leading end of the connecting wire, and a bent portion is formed at the rear end of the connecting wire to prevent removal. be able to.

[0007]

The leading end of the connecting wire is applied to the end of the connecting portion where the wire mesh to be connected is in contact, and the rear end of the connecting wire is pushed in the axial direction to be pushed along the connecting portion. Then, the connecting line advances along the spiral while rotating around the central axis by itself, and is inserted into the mesh of both wire meshes and locked to the row line,
Alternatively, it is wound so as to surround the bone line, thereby connecting the two wire meshes.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. The connecting wire 10 of the first embodiment shown in FIGS. 1 and 2 has rigidity enough to maintain a connected state. The spiral wire is formed by spirally winding the wire, and the lead angle θ of the spiral, that is, the tangential line 11 of the spiral is perpendicular to the central axis 12.
3 and the connecting portion 17 where the wire mesh to be connected is in contact.
When the end of the connecting line 10 is applied to the end of the connecting line 10 (see FIG. 4) and the connecting line 10 is pushed in the direction of the central axis 12, the connecting line 10 rotates along the spiral while rotating around the central axis 12. The size is set so that it can move forward.
The magnitude of the lead angle θ meeting such a condition is 45 degrees or more and less than 90 degrees. However, if the angle is small, the resistance at the time of pushing becomes large and the workability is poor, and conversely, if the angle is large, There is a problem that the number of turns is reduced due to the large pitch of the helix and the connection strength is reduced. Therefore, the preferable range of the pitch angle θ is 60 to 88 degrees, and the more preferable range is 70 to 85 degrees. The winding direction of the spiral may be opposite to that shown, and the spiral winding diameter D
Is appropriately determined according to the thickness and the number of the filaments wound therein.

When a plurality of wire nets 15 and 16 are connected to each other by the connecting wire 10 having the above-described structure, as shown in FIG. Are arranged in parallel with each other, and the tip is applied to the end of the connecting portion 17 so that one or two peaks are wound around the bone lines 18 and 19, and the rear end of the connecting wire 10 is Push in the direction of center axis 12 to connect
And push it along. Then, the connection line 10
As shown in FIG. 5, as shown in FIG. 5, while rotating around the central axis 12 by itself, advance along the spiral, and move the bone lines 18, 19 fixed to the ends of the row lines 20, 21 of the wire meshes 15, 16. It winds around so that both wire nets 15 and 16 may be connected.

Here, when the connecting wire 10 is pushed along the connecting portion 17, the tip of the connecting wire 10 is
In the case where forward movement is hindered by abutment with the connection line 9 or the column lines 20, 21 or the like, the connection line 1 is pushed by using the elasticity of the connection line 10 while appropriately changing its tip.
0 can easily be advanced. In addition, connecting line 10
By setting the pitch of the spiral in the above to an integral multiple or 1 / integer of the mesh interval in the wire meshes 15 and 16, the work of pushing the connecting wire 10 can be performed more smoothly.

When the connecting portion 17 of the wire mesh is long, a plurality of connecting wires 10 having a shorter length than the connecting portion 17 are used, and these connecting wires 10 are sequentially wound around the connecting portion 17 so that the connecting wires 10 are wound. May be connected.

The connecting wire 10 thus attached is prevented from moving and dropping off, or from losing the connecting function due to collapse of the spiral shape due to external force acting on the wire mesh.
The column lines 20, 21 and the bone line 1 are bent at both ends by means such as bending.
It is desirable that the connecting wire 10 be locked to the connecting wires 8 and 19 or be connected to another connecting wire 10. In addition, a bent portion 22 bent into a U-shape or another shape can be formed in advance, and by forming such a bent portion 22, the connection line 10 is connected as described above. When the wire end is pushed into the portion 17, the cut at the end of the wire is prevented from touching the hand, and the work can be performed safely.

When assembling a square gabion as shown in FIG. 8, the connecting line 1 is used for each ridge line that needs to be connected.
0 connects adjacent wire nettings, and if necessary, ends of each connecting wire are connected to a connecting line attached to a row line, a bone line, or another ridge line of the wire mesh.

The connecting line 10 is connected to the ends 20a, 21a of the column lines 20, 21 as shown in FIGS.
It is not used only when connecting the bone lines 18 and 19 inserted through the wire meshes 15 and 19, as shown in FIG.
When the 16 column lines 20 and 21 are directly connected to each other,
As shown in the figure, regardless of the presence or absence of a bone line, the type and form of the wire mesh, etc., when connecting the column line 20 of one wire net 15 and the bone line 19 engaged with the column line 21 of the other wire mesh 16. Can be used for connecting any wire mesh.

Further, the connecting wire 10 is used not only when assembling a gabion but also when connecting the assembled gabions to each other, or in a material other than a gabion, such as a fence or a lock net, for example, a diamond-shaped wire mesh, a lattice wire mesh, or a crimp wire mesh. It is needless to say that the present invention can also be used for connecting wire nets such as described above or connecting a wire net to a wire rope.

FIG. 3 shows a second embodiment of the present invention.
A connecting line 30 formed in the same manner as in FIG. 1 is provided with an inclined portion 31 inclined toward the outside of the spiral at the tip end.
When the connecting line 10 moves forward along the bone line while rotating by itself, the inclined portion 31 prevents the tip of the connecting line 10 from abutting on the bone line, the row line, or the like, and prevents the forward movement. It is very effective for smoothing. In particular, it is effective when the connecting wire 10 having a small winding diameter is used and wound around the bone line with a small gap. In this case, the angle α at which the inclined portion 31 is inclined with respect to the spiral is desirably 45 degrees or less.

The connecting wires 10 and 30 are not limited to those wound along a cylindrical surface as shown in FIG. 2, but may be wound along an elliptical cylindrical surface. Optional.

[0018]

According to the connecting wire of the present invention having the above structure, the lead angle of the spiral is set to 45 degrees or more and less than 90 degrees.
Therefore, by merely applying the front end to the connection portion of the wire mesh and pressing the rear end in the axial direction, the rotation and advance along the spiral are automatically performed.
It can be generated dynamically and easily wound around the connection,
Accordingly, there is no need to apply a force in the circumferential direction to rotate, and the connecting operation can be performed easily and quickly.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view showing a first embodiment of a connecting line according to the present invention.

FIG. 2 is an enlarged side view of a connecting line in FIG. 1;

FIG. 3 is a partially omitted front view showing a second embodiment of the connecting line according to the present invention.

FIG. 4 is a main part front view showing a method for connecting a wire net using the connecting wire of the present invention.

FIG. 5 is an enlarged view in the middle of connection in FIG. 4;

FIG. 6 is a main part front view showing a method of connecting different wire nets.

FIG. 7 is a main part front view showing still another method of connecting a wire mesh.

FIG. 8 is a perspective view of a gabion assembled using a conventional connecting wire.

[Explanation of symbols]

10, 30 connecting wire 15, 16 wire mesh 17 connecting portion 22 bent portion 31 inclined portion θ lead angle

Claims (3)

(57) [Claims] By 1. A wire thereby forming helically the lead angle of the spiral as less than 45 degrees or more and 90 degrees, the tip portion
To the connection of the wire mesh and pushed the rear end in the axial direction
Configured to sometimes produce rotation and advancement along a helix
A spiral connection line characterized by the following . 2. The spiral connection line according to claim 1, further comprising an inclined portion that is inclined toward the outside of the spiral at the tip end. 3. The helical connecting line according to claim 1, further comprising a bent portion at a rear end for preventing removal.