JPH06299533A - Geogrid connector - Google Patents

Abstract

(57) [Summary] (Modified) [Structure] Opening a gap 12 of the same size as the warp thread of the geogrid material, two hooks made of a material with high tensile strength, and a double hook 1 juxtaposed. With the attached jigto grid material connecting tool, the warp thread of geogrid material is sandwiched in the gap of the double hook,
Each hook is configured to be hooked on the weft threads on both sides of the warp thread. [Effect] When connecting the geogrid material, when the weft thread is pulled, the weft thread becomes a bow and the tensile force is not sufficiently transmitted to the warp thread. In the present invention, the double hooks pull the weft yarns on both sides just beside the warp yarns, so that a force is applied to the warp yarns.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for geogrid material, which is a high-strength mesh used for civil engineering.

[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 material is generally used by making use of a large tensile force, but when connecting Geogrid material or Geogrid material and other objects, the warp threads of Geogrid material have the same tensile strength as the main body. It was extremely difficult to connect so that 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 An object of the present invention is to provide a connector which is made of an inexpensive material, has good workability, has sufficient connection strength, and can be connected in various forms.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides two hooks made of a material having a large tensile strength with a gap approximately equal to that of the warp thread of a geogrid material. Double hooks arranged side by side are attached to one end, and each hook is configured to be hooked on the weft threads on both sides of the warp thread with the warp thread sandwiched in the above-mentioned gap, and a similar double hook or Other connecting means is attached.

[0005]

[Function] Even if a hook is hung on the warp and the central portion of the warp and the weft is pulled, the weft is loosened in a bow and the pulling force of the hook is not sufficiently transmitted to the warp. With the two hooks sandwiched, it can be hooked on the weft thread just next to the point of intersection with the warp thread, so the force of pulling the weft thread with the hook is sufficiently 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. As shown in Fig. 1, using a steel plate with a thickness of 3 mm as a material,
A strip 10 having a width of 15 mm and a length of 15 cm is formed. A band-shaped body 1 in which a groove-shaped cut 11 having a width of 5 mm and a length of 5 cm is formed from the center of the longitudinal end of the band-shaped body 10 toward the inside, and the groove-shaped cut is provided.
Both ends of 0 are folded back on the same side at a position of 3 cm with a gap 12 of 1 cm between them, and a connector A having double hooks 1 at both ends is formed. Galvanize the connector.

In order to use such a connecting tool A, as shown in FIG. 2, the warp threads 21 of the geogrid material 2 are inserted so as to be sandwiched in the groove-shaped notches 11 of the connecting tool A, and the weft threads on both sides are inserted. 22
Is hooked on the double hook 1. On the other side of the double hook 1, the other geogrid material 2 to be connected is similarly hooked. In order to secure the connection strength equivalent to the tensile strength of the geogrid material main body, it is desirable to connect the corresponding warp threads 21 and the warp threads 21 of the two geogrid materials using the connecting tool A.

[0008]

[Embodiment 2] FIG. 3 shows a connector A having a double hook 1 at one end and a semicircular connecting hook 3 at the other end for connecting with a pipe. Similar to the case of the first embodiment, a steel plate having a thickness of 3 mm is used as a material, and the width is 15 mm and the length is 25 mm.
A centimeter band 10 is used. A double hook 1 is formed at one end as in the previous embodiment. The other end is bent to the side opposite to the double hook to form a semicircular connecting hook 3 having a radius of curvature of 25 mm to form a connecting tool A. Galvanize the connector.

In order to use the connecting tool A, as shown in FIG. 4, the geogrid material 2 is laid on the embankment base 40, and the double hooks are hooked on the weft threads by sandwiching the warp threads.
The pipe 5 is fitted to the connecting hook 3 on the opposite side. The surface plate 6 and the pipe 5, which are installed at the tip of the embankment, are connected by a high-strength connecting cable 7 with a turnbuckle 71 interposed therebetween, and the embankment 4 is placed on the back surface of the surface plate 6 and on the geogrid material 2. To do.

Although a strip-shaped steel plate is used as a material in the embodiment, it may be a plastic injection-molded product having high strength or an aluminum die-cast product. A double hook on one side is indispensable, but one side may be a flat hole for passing a rope or the like, or an annular connecting tool may be attached instead of the semicircular connecting hook. When double hooks are attached to both ends, the hooks may be attached in opposite directions so as to form a ∽ type. Alternatively, two single hooks may be juxtaposed to each other and joined at the central portion with a gap left therebetween.

[0011]

INDUSTRIAL APPLICABILITY The connector of the present invention is capable of transmitting a tensile force to the warp yarn by hooking the weft yarns on both sides of the warp yarn with a double hook, and therefore, as a connector for a geogrid material which places importance on tensile strength. Is preferred. Since one connecting tool of the present invention is independent, it can be applied to various geogrid materials having different warp intervals. The connector of the present invention can be used not only for the embodiment but also for connecting geogrids laid on soft ground, connecting wire mesh, and the like.

[Brief description of drawings]

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

FIG. 2 is a plan view (partially cutaway) showing a usage state of a plurality of connectors.

FIG. 3 is a side view showing another example of the connector.

FIG. 4 is a side view showing another example of a usage state of the connecting tool.

[Explanation of symbols]

 A Connecting tool 1 Double hook 10 Belt 11 Groove notch 12 Gap 2 Geogrid material 21 Warp 22 Weft 3 Connecting hook 4 Fill embankment 40 Embankment base 5 Pipe 6 Surface plate 7 Connecting rope 71 Turnbuckle

Claims (2)

[Claims] 1. A double hook in which two hooks made of a material having high tensile strength are juxtaposed is formed at one end with a gap approximately equal to that of the warp yarn of the geogrid material, and the warp yarn is sandwiched in the gap. Shape, each hook is configured to be hooked on the weft threads on both sides of the warp thread, and the other end is provided with a connecting means such as a double hook or a single ring or a hook. A connector for lumber. 2. A connector for a geogrid material, characterized in that the double hooks according to claim 1 are attached to both ends in a state of facing each other.