JPS5931763Y2 - Artificial lawn joint structure - Google Patents

Description

[Detailed description of the invention] This invention relates to a jointed structure in which artificial grass is continuously joined.

In recent years, with the spread of artificial turf, it has come to be used for a variety of purposes, but its uses are still limited due to the inadequate method of laying it.

For example, when fixing the artificial lawn, the back side of the artificial lawn and the surface of the site are fixed with adhesive, so there is not much need to connect the artificial lawn continuously, but when laying a large area without fixing the joint. The artificial lawn must be connected in some way to prevent it from moving.

In this case, conventionally, zippers (product names, chucks, zippers) were often used, but due to the mechanism of the zipper, if dirt gets into the fine teeth, the teeth will break and the zipper will not be able to be opened or closed. It has drawbacks such as the fact that spaces tend to form at the joints, and the thickness of the teeth of the zipper is greater than the thickness of the base fabric of the artificial grass, so a thickness adjustment batt is required on the underside of the artificial grass. was.

In order to solve these shortcomings,
As shown in the above publication, a bonding structure for artificial grass mats has been proposed in which the end surfaces of artificial grass are butt-joined using a pressure-bonding tape.

The pressure bonding tape of this invention is generally a pair of tapes in which a large number of interlocking pieces that can be interlocked and separated are planted in groups, and is used instead of adhesive as a bonding material between the ground and artificial lawn. It became so.

In the above-mentioned Japanese Utility Model Application Publication No. 53-145332, since the structures of the left and right ends of two artificial lawns (mats) are different, when joining them, the raised base sheet and the cushion are sufficiently separated, and then one of the mats is separated. Because it takes time and effort to insert the connecting cloth that protrudes from the mat,
Even if small pieces of mats are successfully joined together, if the mats have long joining lines, the above-mentioned separation and insertion operation cannot be easily performed, and incomplete insertion may cause walnuts or wrinkles in the joining tape. This has the drawback of unavoidable interlocking, defective joints, and complicated work.Furthermore, it is difficult to adjust the horizontal parallel level when the joint is in a joint state due to the difference in thickness between the clamped and fixed side of the connecting fabric and the protruding side. Because of this structure, there was a fatal flaw in that the abutting portions of the end faces were likely to lift up or create gaps.

The present invention aims to provide a bonded structure for artificial turf that further improves the drawbacks of the above proposals.

Therefore, the present invention is an artificial lawn joining structure in which the end surface of an artificial lawn is butted and joined to the end surface of another artificial lawn, and the lower end edge of the backing material of the artificial lawn on both sides to be joined is A cutting part is provided to join and fix the splicing material, and a ground side splicing material that can be completely separated from the lawn side splicing material is placed on the lower surface of the artificial lawn splicing material on both sides of the butt. An artificial lawn joint structure characterized in that the lawn patch material is sorbed within the thickness of the backing material layer by surface pressure joining across the artificial lawn side joint materials on both sides of the butt without protruding from the back surface of the backing material. It is.

The present invention will be explained with reference to drawings showing an example of implementation.

FIG. 1 is an explanatory sectional view showing an example of the joint portion of the present invention.

1 is a pile of artificial grass, and 2 is a backing material in which the pile 1 of artificial grass is vegetated, and a cutting part is provided at the lower edge of the joint of this backing material.

3 and 3' are joint materials that can be attached and detached by surface pressure, 3 is the artificial grass side joint material, and 3' is the ground side joint material.

The artificial lawn side patching material 3 is bonded and fixed to the cut portion of the backing material, and the ground side patching material 3' is arranged at a position corresponding to the artificial lawn side patching material 3 in such a manner that it can be completely separated.

The joint material 3' is absorbed within the thickness of the backing material without protruding from the back surface of the artificial grass backing material.

Although the joint materials 3 and 3' are not particularly limited, the above-mentioned pressure bonding tape fasteners are suitable.

The joint materials 3 and 3' are a pair of pressure bonding tapes, and the artificial lawn side joint material 3 is bonded and fixed to the cut part of the lower edge of the backing material 2 by an appropriate method such as adhesive, and The joint material 3' can be completely separated.

The backing material 2 needs to be thick enough to absorb the thickness of the joint materials 3, 3'.

The backing material 2 may be made of a resin layer that is integrated with the pile thread removal prevention and cushioning properties as shown in FIG.
It may also be a combination of

The ends of these backing materials 2 must be cut to the tape width of the joint material 3 by the thickness when the joint materials 3, 3' are in a joined state.

As shown in FIG. 3, the cut portion is formed by embedding a knitted fabric or a molded net 6 having sparse spaces made of a material incompatible with the backing material in the backing material layer. After that, a cut is made to cut the net 6 and the cut part is easily formed by peeling off the net 6. Of course, the depth of the cut part is controlled by the position of the net. Ru.

The cutting portion of the present invention is not limited to this method, and cutting may be performed by other methods.

Since the present invention is a joint structure for artificial grass with joints having the structure described above, it is not necessary to use adhesive to join the artificial grass to the base surface of the place where it is to be laid, and it can be easily installed. In addition to its advantages, there is no difference in thickness between the joint and the main body of the artificial lawn, and since it has the same symmetrical structure, it can be easily connected and disassembled over a wide area, making it particularly suitable for indoor tennis courts. It is possible to provide an artificial lawn, and the practical value is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of a joint showing an example of the implementation of the present invention, FIG. 2 is a cross-sectional view showing another example of the backing material 2, and FIG.
The figure is a sectional view for explaining an example of a method for obtaining a cut portion to which a joint material is attached. 1... Artificial grass pile, 2... Backing material, 3... Artificial grass side joint material, 3'...
...Ground side joint material, 4...Adhesive layer to prevent thread removal, 5...Cushion material, 6...Net, 7...Artificial grass Base fabric, 8...Adhesive.

Claims (1)

[Scope of utility model registration request] An artificial lawn joining structure in which the end surface of an artificial lawn is butted against and joined to the end surface of another artificial lawn, and a cutting part is provided at the lower end edge of the joint of the backing materials of the artificial lawns on both sides to be joined. A ground side patching material that can be completely separated from the lawn side patching material is placed on the lower surface of the artificial grass patching material on both sides of the butt, and the ground side patching material is separated from the back side of the artificial grass backing material. A bonded structure for artificial grass, characterized in that it is bonded by surface pressure across the artificial grass side joint materials on both sides of the butt without protruding, and is absorbed within the thickness of the backing material layer.