JPH073763A - Connector for high-strength network material - Google Patents

Abstract

PURPOSE:To provide a connector having sufficient connecting strength by joining two band plates together at their respective longitudinal ends with a gap almost the size of the warp of a network material, and forming a plurality of projecting notches in the corresponding positions of a strip. CONSTITUTION:A plurality of projecting notches 1 are formed at both side edges 11 of a strip 10 of batten A made by a thin plate and in accordance with the intervals of the weft of a network material, with each notch 1 having a narrow inlet and becoming wider toward its depth and with both side walls 12 of each notch 1 constricted. Next, a gap 2 almost the size of the warp of the network material is provided and both side edges 11 are curved to form a connector B of U-cross section. Next, the warp 31 of a geogrid material 3 is inserted in the gap 2 of the connector B and the weft 32 on each sides is inserted into the corresponding notches 1 to connect the end portions of the material 3 together. Immediately near the side of the intersection point of the warp 31 and the weft 32, the weft 32 is hooked in the plurality of pairs of notches 1 between which the warp 31 is sandwiched, and the force to pull the weft 32 with the side wall 12 of each notch 1 is transmitted to the warp 31. Thereby the strength of connection can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for high-strength net-like materials such as geogrid materials used in civil engineering work.

[0002]

2. Description of the Related Art Conventionally, various methods have been used to connect a high-strength net-like material and a geogrid material used for constructing a multi-layered embankment at a construction site. Geogrid materials are generally used by making use of a large tensile force, but since warp threads are usually formed to be much stronger than weft threads, when connecting geogrid materials, the warp threads of the geogrid material are pulled by the main body tension. It was extremely difficult to connect so that the strength was the same as the force. Since on-site construction is common, there are restrictions on tools, time, technology, etc., and workability and cost are also issues, so there was no accurate method.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connector which is made of an inexpensive material, has good workability, and has sufficient connection strength.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention comprises two strip-shaped plates made of a thin plate-shaped material having a high rigidity and a high tensile strength, and a reticulated material having a high tensile strength. Open a gap about the same as the warp thread, join at one side end in the longitudinal direction, and make a hole-like notch with a wide entrance at a predetermined interval at a position facing each other on each strip plate. A plurality of warp yarns are formed and inserted so as to sandwich the warp yarns of the two net-like substances overlapped in the gap, and the weft yarns intersecting the warp yarns are inserted into the respective hole-shaped cuts.

[0005]

[Function] Even if a hook is hung on the warp thread and the central portion of the warp thread and the weft thread is pulled, the weft thread is loosened in a bow and the pulling force of the hook is not sufficiently transmitted to the warp thread. Since a plurality of pairs of hole-like cuts sandwiched can be hooked on the weft thread just beside the intersection with the warp thread, the force of pulling the weft thread on the side wall of the cut is transmitted to the warp thread.

[0006]

Embodiment 1 An embodiment of the present invention will be described in detail below with reference to the drawings. Although it does not define the manufacturing method, an example of the manufacturing process will be described to help understanding. Shown in FIG. 2 is a steel sheet blank A used in the production of a connector. A strip 10 having a width of 5 cm and a length of 10 cm is formed from a steel plate having a thickness of 2 mm, and three hole-shaped cuts 1 are formed on each side edge 11 thereof.
Form at intervals of 5 millimeters. This spacing is designed according to the spacing of the weft threads of the mesh.

The hole-shaped notch 1 has a narrow entrance and a wide back,
Both side walls 12 of the hole are narrowed. Outside the entrance of the hole cut. It is advisable to form the taper shape so that the weft thread can be easily inserted. Small connecting holes 13 at both ends under both edges
Is provided.

As shown in FIG. 1, the band-shaped body 10 thus formed is bent at its both side edges 11 so that a substantially parallel gap 2 of about 5 mm is formed at the center in the longitudinal direction, and its cross section has a cross section. The connecting tool B having a U shape, a U shape, or a V shape is formed.

Such a connecting tool B is used to connect the two stacked geogrid materials 3 to each other. As shown in FIG. 3, the warp threads of the geogrid material 3 are placed in the gaps 2 of the connecting tool B. Inserting 31 so as to sandwich it, and 3 weft threads 32 on both sides
It suffices to insert each into the corresponding hole-shaped notch 1.
You may push and attach a connection tool from the two geogrid materials piled up.

Such a connecting tool B is used for connecting the ends of the geogrid material, or for connecting the steel pipe 4 to the end of the geogrid material 3, as shown in FIG.

As shown in FIG. 5, it is convenient for construction to connect a large number of connecting tools B so that they can move freely to some extent by passing a thin cord 14 through the connecting hole 13 in the lower side surface of the connecting tool B. .

In order to transmit the tensile force better, as shown in FIG. 6, it is possible to provide a vertical unevenness 15 on the inner surface of the band-shaped body 10 so that the frictional force with the warp yarn 31 is exerted. is there.

Depending on the balance between the strength of the warp and the weft,
Usually, in order to secure the strength of the warp threads of the geogrid material, it is desirable to provide about three hole-shaped notches and insert the weft threads into each of them. In addition, how much the connecting tool is used depends on the required connecting strength. This connector is convenient because it can be installed at any interval.

Although strip-shaped steel plates were used as the material for the connecting members in the examples, the tensile strength of the connecting members such as plastic injection-molded products having high strength, aluminum die-cast products, and press-pressed products of aluminum plates has geogrid material. The material is not particularly specified as long as it is a material having a strength substantially comparable to the tensile strength of one warp thread.

[0015]

The connector of the present invention has a plurality of pairs of hole-shaped notches in which the weft threads on both sides of the warp thread are inserted and hooked.
Since the tensile force can be transmitted to the warp yarn, it is suitable as a connector for a high-strength net-like material such as a geogrid material that places importance on tensile strength. In addition, this connecting tool is desirable because it is easy to produce, has a low cost, and is easy to install.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a connecting tool.

FIG. 2 is a plan view showing an example of a blank used for producing a connector.

FIG. 3 is a plan view showing a connection state of a connecting tool and a geogrid material.

FIG. 4 is a side sectional view showing an example of a usage state of a connecting tool.

FIG. 5 is a perspective view showing an example in which a large number of connecting tools are connected.

FIG. 6 is a plan view showing another example of the connector.

[Explanation of reference symbols] A punching board B connecting tool 1 hole notch 10 band-like body 11 side edge 12 side wall 13 connecting hole 14 thin string 15 unevenness 2 gap 3 geogrid material 31 warp thread 32 weft thread 4 steel pipe

Claims (1)

[Claims] 1. Two strip-shaped plates made of a thin plate-shaped material having high rigidity and tensile strength are joined at one side end in the longitudinal direction with a gap approximately equal to the warp threads of a net-like material having high tensile strength. , A plurality of hole-like cuts having a narrow entrance and a wide opening are formed at predetermined intervals on the respective strip-shaped plates at a predetermined interval, and the warp threads of the two net-like objects stacked in the gap are sandwiched. And a weft thread intersecting with the warp thread is inserted into each hole-shaped cut, and a connector for high-strength net-like article.