JPS6042138Y2 - Drain cover - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drain cover, and more specifically, to a drain cover used for a drain in a ground covered with artificial grass.

Recently, artificial grass is often laid on grounds due to the low maintenance of grounds.

Such artificial lawns are produced by knitting, weaving, or tufting a thermoplastic filament ribbon with a synthetic fiber substrate to make the monofilament ribbon stand upright from the substrate, and to apply a backing material to the back of the substrate, as shown in Figure 2. It has been established.

Since this artificial lawn is provided with a backing material, it has no water permeability as a whole.

On the other hand, when an artificial lawn is laid, a drainage ditch is provided to drain rainwater, but from the viewpoint of appearance and practicality, the upper surface of such a drainage ditch is similar to the surface of the artificial lawn other than the drainage ditch. need to be in state.

However, since the artificial grass used here is impermeable, it is difficult to attach this artificial grass to the drain cover and ensure that rainwater flows smoothly into the drain. be.

The present invention has been made in view of the above points.

Therefore, the present invention covers the upper surface of the lid main body 5 with a water-impermeable artificial lawn 4 made of a thermoplastic filament ribbon 1, a synthetic fiber base material 2, and a backing material 3.
Fold the edge of the folded artificial lawn 4 into the side edge of the back side of the lid body 5, cut out the edge of the folded artificial lawn 4 to provide a notch 6 for running water, and heat-seal the thermoplastic filament ribbon 1 on the remaining edge of the edge. This is a drain cover that is integrated with material 2.

The present invention will be described below with reference to embodiments shown in the figures.

FIG. 1 is a perspective view from the back showing an embodiment of the drain cover according to the present invention.

In FIG. 1, 4 is an artificial lawn.

The artificial lawn 4 is made by knitting, weaving or tufting the thermoplastic filament ribbon 1 with a synthetic fiber base material 2, as shown in FIG.
upright from the synthetic fiber base material 2 and the synthetic fiber base material 2
It is made by pasting a backing material 3 made of rubber on the back side with an adhesive.

However, due to the presence of the rubber backing material 3, this artificial lawn 4 is impermeable to water.

In Fig. 1, the drain cover is made up of artificial grass 4 and cover body 5.
The edge of this artificial lawn 4 is folded into the side edge of the back surface of the lid body 5.

The edge of the folded artificial lawn 4 is cut out in a band shape to form a notch 6 for running water.

In addition, the remaining part of the folded edge of the artificial lawn 4 after the notch is thermally fused with the thermoplastic filament ribbon 1 to form a fused part 7 integrated with the base material 2.

In addition, the artificial grass 4 is generally attached to the top surface of the lid body 5 on the back side of the backing material 3, but the backing material 3 is removed from the back side of the lid where the edge is folded in, and the fused portion is 7
It is pasted.

8 is a guide leg.

FIG. 3 is a perspective view showing a cross section ' (corresponding to the line xx' in FIG. 1) when a drain groove is covered with a drain cover A of the present invention.

In FIG. 3, 10 is a ground, and 9 is a drainage ditch.

Rainwater, etc. will be placed on Ground 10 and flowed over the four artificial lawns.
It enters from the side of the drain cover A, passes through the running water notch 6 cut out in a band shape on the back side of the artificial lawn 4, and flows into the drain 9.
It flows into the interior and is drained.

FIG. 4 is a perspective view with a cross section (a cross section corresponding to the position Y-Y' in FIG. 1) when the drain groove cover A of the present invention is placed over the drain groove 9.

As is clear from FIG. 4, the drain cover A has a fused portion 7.
is fitted in contact with the upper edge of the drain groove 9.

Thermoplastic filament ribbon 1 remaining on the back side of the lid body 5 except for the running water notch 6 at the edge of the folded artificial lawn 4
Because it is heat-sealed and integrated with the base material 2, that part is hard and will not be compressed and deformed by gravity even after a long period of time has passed after the MA for drains of the present invention is fitted into the drain groove 9. Therefore, the water flow notch 6 does not become narrow and the amount of water discharged does not become small.

The lid main body 5 of the drainage ditch lid of the present invention also has a notch 11 formed at a position corresponding to the running water notch 6 provided in the artificial lawn 4 by notching the guide leg 8 as shown in FIG. You may.

In this way, water flowing in from the running water notch 6 of the artificial lawn 4 can be smoothly guided to the drainage ditch 9.

The lid body 5 may be provided with reinforcing ribs 12 as shown in FIG.

Thereby, the lid main body 5 is reinforced from the back side and becomes difficult to deform.

As mentioned above, in the drain cover according to the present invention, the upper surface of the cover body is covered with an impermeable artificial grass made of a thermoplastic filament ribbon, a synthetic fiber base material, and a backing material. When artificial turf is laid and fitted into a drainage ditch provided on a certain ground, an artificial turf surface is also formed on the top of the drainage ditch, giving the impression that it is connected to the artificial turf laid on the surrounding grounds, which is desirable. In addition to its exterior appearance, its upper surface can be used for walking and playing games, just like the surrounding grounds.

In addition, since the edge of the artificial lawn is cut out to serve as a running water notch, water flowing from around the drain cover passes through the running water notch and is introduced into the drain, resulting in excellent drainage performance. There is.

Furthermore, since the remaining thermoplastic filament ribbon at the edge of the folded artificial lawn is heat-sealed and integrated with the base material, this part is hard.

Therefore, even if the drain cover of the present invention is fitted into a drain for a long period of time, this fused portion will be compressed and deformed by gravity (
Therefore, the water flow notch does not become narrower due to changes over time, and the drainage volume does not become smaller.

[Brief explanation of the drawing]

FIG. 1 is a perspective view from the back showing an embodiment of the drain cover according to the present invention, FIG. 2 is a schematic perspective view of an artificial lawn used in the drain cover of FIG. Figure 3 is a perspective view with a cross section (corresponding to the position x-x' in Figure 1) when a drain groove is covered with the drain cover of the present invention, and Figure 4 is a perspective view of the same as above. 1 is a perspective view with a cross section corresponding to the position y-y' in FIG. 1; FIG.
FIG. 6 is a perspective view showing another example same as the above. 1...Thermoplastic filament ribbon, 2...
... Threatening fiber base material, 3 ... Backing material, 4
...Artificial grass, 5...Lid body, 6...
... Notch for running water, 7... Fusion part.

Claims (1)

[Scope of utility model registration request] The upper surface of the lid body is covered with a water-impermeable artificial lawn made of a thermoplastic filament ribbon, a synthetic fiber base material, and a backing material, and the edges of the artificial lawn are folded into the side edges of the back side of the lid body, and the folded artificial grass is This drain cover is made by notching the edge of a lawn to provide a notch for running water, and heat-sealing the thermoplastic filament ribbon remaining on the edge to integrate it with a base material.