JP3222031B2 - Drainage mat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention can be used, for example, for laying greenery for gardens, public and private rooftops, terrace gardens, and for construction of various stadiums, event venues, and other ordinary roads and grounds. Drainage mats to be laid as drainage materials.

[0002]

2. Description of the Related Art Conventionally, as a drainage mat to be laid as a drainage material at the time of construction of a normal greening site, road or ground, as shown in FIG. Nonwoven mats that have a textured configuration have been used.

[0003]

However, the conventional nonwoven fabric mat itself is excellent as a cushioning material because it has a very cushioning property. However, when the mat is laid and soil is hardened, If your eyes are fine,
The earth and sand is already clogged on the upper surface of the mat, and the earth and sand rarely reach the lower surface of the mat. Therefore, the earth and sand layer is stacked on the mat layer, and the cushioning property of the mat layer is reversed. Inferior to the pressure resistance strength.

If the nonwoven fabric mat is made coarse, the drainage is good to some extent, but the earth and sand flow down, so that a large amount of water eventually overflows. occured.

The present invention has been made in view of the above-mentioned conventional problems, and is a drainage mat to be laid as a drainage material when constructing a greening site, a road or the ground, and has a good cushioning property. In addition, it is an object of the present invention to provide a drainage mat which is sufficiently provided with pressure-resistant strength and which has excellent drainage performance without clogging.

[0006]

The first technical means taken by the present invention to solve the above problems is a bundle of pile yarns.
1 is a Russell weave 2 with plain weave knitting, a fine lower surface 3 and a coarse upper surface 4, and the lower surface 3 and the upper surface 4
A gap portion 5 formed in a loop by projecting the pile yarns 2 at each of the first and second surfaces 3 and 4 so that a thickness corresponding to a predetermined height is formed therebetween. It is in.

The second technical means taken to solve the above problem is a lower surface 3 and an upper surface 4 in which a bundle of pile yarns 1 is plain-woven by Russell weave 2 with substantially the same number of stitches.
And a gap formed by projecting the pile yarns 1 at each of the first and second surfaces 3 and 4 so as to form a thickness between the lower surface 3 and the upper surface 4. 5 and a reinforcing plain weave 15 knitted between the vertical stitches of the lower surface 3 with another pile yarn 13 (14).

[0008]

According to the drainage mat of the present invention, a fine lower surface 3, a coarse upper surface 4, and a gap 5 therebetween are formed by weaving a bundle of pile yarns 1 by Russell weaving 2, or Lower surface 3 with plain weave knitting at approximately the same number
And the upper surface 4 and the gap 5 between the upper surface 4 and the pile yarn 1
A reinforced plain woven body in which the vertical stitches are knitted in a stitch shape with another pile yarn 13 (14) only on the lower surface 3
Therefore, when the construction is performed, the mat is laid, and then the earth and sand 9 is applied on the mat, and the earth and sand 9 is transferred from the coarsely-textured upper surface 4 to the lower surface 3 through the gap 5.
Is sinking.

However, since the lower surface 3 forms a very fine stitch by the integral or separate pile yarn 1, the earth and sand 9 is clogged at the lower surface 3 portion,
Since it is possible to prevent the earth and sand 9 from flowing down on the lower surface 3, the pressure resistance is sufficiently provided.

[0010] As described above, the drainage mat of the present invention is laid on the site according to the purpose, humus or the like for planting trees is laid on the mat, artificial turf or hybrid turf (including those with sheets). ) Can be laid or covered with earth and sand for the ground, so that various stadiums, event venues, public and private rooftops, terrace gardens, etc. can be constructed. It can also be laid.

The site where the drainage mat is laid is
Even if a large amount of rain falls, first, water is supplied from the upper surface 4 and the water is absorbed by the earth and sand 9 existing between the gap 5 and the lower surface 3, thereby greatly draining the water. Good, and since the gap 5 is formed by projecting the pile yarn 1 at each of the lower surface 3 and the upper surface 4 to form a loop, the directionality in the gap 5 is also good. In addition to being excellent in cushioning properties, the gap 5 can prevent the earth and sand 9 from flowing down.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to greening sites such as gardens, public and private rooftops, terrace gardens, various stadiums and event venues,
Others are drainage mats laid on the premises or on the ground (below the ground) mainly as drainage materials during construction of ordinary roads and grounds, etc. One embodiment of the present invention will be described below with reference to the drawings. .

<First Embodiment> As a first embodiment of a drainage mat according to the present invention, as shown in FIG. 1, polypropylene (PP), polyethylene (PE),
Nylon, polyester, polyvinylidene chloride (PVD
C), a plurality of monofilaments or yarns made of polyvinyl chloride (PVC) or the like are bundled to give a total denier of 1
000 to 10000d, preferably 1800 to 6000
The lower surface 3 having fine stitches and the upper surface 4 having coarse stitches (such as skip stitches) are obtained by performing a Russell weaving of a bundle of pile yarns 1 having a d.
The pile yarns 1 are cut in two directions at a height of 2 to 3 cm for each stitch of the lower surface 3 and the upper surface 4 and protruded, and are alternately knitted in a loop shape according to a certain rule. Gap 5 (see FIG. 2).

As shown in FIG. 3, another pile yarn 6 is knitted on the lower surface 3 so as to intersect with the warp stitches of the Russell weave 2 in an intersecting manner and in the same row. The lower surface connector 7 is provided.

As shown in FIG. 4, the upper surface 4 is further wrapped with another pile yarn 8 with the Russell weave 2.
There is provided an upper surface connecting body 9 which is woven while being entangled with the warp stitches in an intersecting manner and in the same row at an interval.

Next, the drainage mat of the present invention constructed as described above is actually used, and the sheet 10 on which seeds such as natural turf 11 are sown is placed on a sheet 10 such as a non-woven fabric for greening. The construction method for constructing the site is described.

For example, the drainage mat is appropriately cut in accordance with the area to be used, laid on a veranda or terrace garden at home with the lower surface 3 of the mat facing down, and humus or fertilizer is sowed from above. As shown by 6, a natural turf 11 or the like planted on a sheet 10 such as a nonwoven fabric is placed.

The natural turf 11 is rooted in the soil, sand or mulch in the drainage mat, and when water is supplied,
Excess water is absorbed by the soil and sand in the mat, and the absorbed water is used again for rehydration of the natural turf 11, so that the natural turf 11 is easy to care for and can be grown.

At this time, in the drainage mat of the present invention, the cross section of the Russell weave 2 along the vertical knitting stitch has loops formed at predetermined intervals as shown in FIG. 5, the lower surface 3 is clogged and the upper surface 4 is a pierced body of a random pile yarn 1 with a large interval, as shown in FIG. The sediment settles in the direction of the lower surface 3 from the upper surface 4 via the gap 5, and the soil and sand are clogged at the lower surface 3, preventing the soil and sand from flowing down by the lower surface 3. .

Therefore, it is possible to easily construct a simple home gardening garden simply by laying the drainage mat, and it is also very easy to maintain the garden afterwards. You can do it.

A construction method for laying the device on the ground (below the ground), that is, for providing a ground or the like will be described.

Similarly, the drainage mat is appropriately cut in accordance with the area to be used, and is laid on the ground (under the ground) with the lower surface 3 of the mat facing down.

Next, soil or sand 9 is applied from above and fixed.

As described above, after the earth and sand 9 are applied,
Laying ground sand, constructing various stadiums and event venues, and other ordinary roads and grounds according to the purpose.

<Second Embodiment> Lower surface of the drainage mat
Since the subsequent configuration is the same as that of the first embodiment except for the difference of 3, the description is omitted. The same reference numerals in the drawings denote the same components.

The lower surface 3 of the drainage mat of the second embodiment is
It is formed by plain weave knitting with approximately the same number of stitches as the upper surface 4 in the Russell weave 2, knitting 13 with another pile yarn 12 between the vertical stitches, and loop knitting in a direction substantially orthogonal to the knitting 13 A reinforcing plain weave body 15 knitted into a lattice stitch 14 is provided to suppress stretchability.

With the above construction, the reinforcing plain weave body 15 is
Can sufficiently be prevented from flowing down, and can hardly be stretched in the lateral direction, thus providing a strong drainage mat.

The drainage mat of the second embodiment can be used in the same manner as that of the first embodiment.

The drainage mat of the present invention is not limited to the first and second embodiments.
The pile yarns 1 forming the yarns 5 may be woven alternately in a simple loop without being divided at each line of the lower surface 3 and the upper surface 4. It may be provided only on 3 or the upper surface 4 or may not be provided depending on the case.

Further, the reinforcing plain woven body 15 may be formed of only the knitted fabric 13 in the vertical direction or only the looped knitted fabric 14 in the horizontal direction. Select whether to give priority to the property or to give priority to the cushioning property only by Russell weave 2.

[0031]

According to the drainage mat of the present invention, the lower surface having a finer stitch and the upper surface having a coarse stitch and the thickness corresponding to a predetermined height are formed between the lower surface and the upper surface. A gap formed by projecting pile yarns and forming a loop, and a plain weave knitting a bundle of pile yarns by Russell weaving, or a plain weave knitting with approximately the same number of lower and upper surfaces And the gap between them is made by knitting a bundle of pile yarns in plain weave by Russell weaving, and knitting the reinforcing plain weave in a stitch shape between the vertical stitches on the lower surface with another pile yarn. When earth or sand is applied to the mat, the earth and sand settles from the coarse upper surface to the lower surface through the gap, but hardly runs down from the lower surface where the mesh is formed finely.

Therefore, it is possible to lay the mat on a public or private rooftop, a terrace garden, or the like, apply mulch or the like for planting trees on the mat, and directly plant trees on the mat. May be laid.

At this time, since the drainage mat of the present invention is provided with a gap having a predetermined height between the lower surface and the upper surface, the gap is rich in directionality and excellent in cushioning property. In addition, since the humus and the like do not flow down, the balance of water absorption and replenishment can be naturally maintained, the handling is convenient, and the withdrawal operation can be performed very easily.

As described above, since the mat of the present invention is excellent in retaining earth and sand, the water-draining mat becomes extremely drainable and has sufficient pressure resistance due to the water absorption of the earth and sand. . Therefore, it is suitable not only as a laying mat for greening but also for various stadiums (including a dirt course of a ground and a racetrack) and event venues.

Further, when used for construction of ordinary roads and grounds, the earth and sand are not likely to run down from the mats even when the rain continues, so that the civil engineering work can be performed very efficiently.

If the lower and upper surfaces are provided with a connecting body woven so as to intersect with the Russell-woven stitches, the stretchability can be suppressed. It can also be.

[Brief description of the drawings]

FIG. 1 is a partially omitted perspective view showing one embodiment of the present invention.

FIG. 2 is an enlarged view of the side surface and the main part thereof.

FIG. 3 is an enlarged view of the bottom surface and the main part thereof.

FIG. 4 is an enlarged view of the plane and the main part thereof.

FIG. 5 is an enlarged view of the front and the main part thereof.

FIG. 6 is a partially omitted use state diagram.

FIG. 7 is an enlarged view of a bottom surface and a main part thereof showing another embodiment.

FIG. 8 is a partially omitted perspective view showing a conventional example and an enlarged view of a main part thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pile yarn 2 Russell weave 3 Lower surface 4 Upper surface 5 Gap 7 Connecting body 9 Connecting body 15 Reinforced plain weave

Claims (5)

(57) [Claims] 1. A bundle of pile yarns (1) by Russell weaving (2)
The lower surface (3) and the upper surface (4) of which the stitch is coarsely knitted in plain weave, and the both surfaces ( 3. A drainage mat comprising: a gap portion (5) formed in a loop by projecting the pile yarn (2) for each stitch of (3) and (4). 2. A bundle of pile yarns (1) by Russell weaving (2)
The lower surface (3) and upper surface knitted in plain weave with approximately the same number of stitches at
(4) and the pile yarn (1) for each stitch on both sides (3) and (4) so that a thickness corresponding to a predetermined height is formed between the lower surface (3) and the upper surface (4). Another pile yarn (1) is provided between the gaps (5) protruding and formed in a loop shape and the vertical stitches on the lower surface (3).
A drainage mat comprising a reinforcing plain weave (15) knitted in 3). 3. A pile yarn (1) for forming said gap (5).
3. The drainage sheet for civil engineering works according to claim 1, wherein each of the lower surface (3) and the upper surface (4) is divided in two directions, has a predetermined width, and is alternately woven according to a certain rule. 4. A connecting body (9) provided on the upper surface (4) or the lower surface (3) with another pile yarn (8) woven so as to cross the stitches of the Russell weave (2). The drainage sheet for civil engineering according to any one of claims 1 to 3, which is provided. 5. A connected body () woven on the upper surface (4) and the lower surface (3) with another pile yarn (8), (6) so as to cross the stitches of the Russell weave (2). The drainage sheet for civil engineering according to any one of claims 1 to 3, wherein 9) and (7) are provided.