JP2992863B2 - Artificial turf stadium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial turf stadium, and more particularly, to an artificial turf stadium in which artificial grass is laid on a concrete ground and sand is filled in the grass. Things.

[0002]

2. Description of the Related Art In general, in an artificial turf stadium used for various sports or a multipurpose artificial turf facility used for other purposes, as shown in FIG. After the turf 2 is laid, the sand 7 is filled in the grass. As described above, by filling the sand 7, an appropriate cushioning property or the like can be obtained in exercising, and the weight of the sand 7 fixes the artificial turf 2 itself to the ground 1 to some extent.

[0003] When the base 1 is made of concrete, cracks often occur on the concrete surface due to shrinkage and thermal expansion of the concrete. Therefore , a band-shaped or linear joint 5 serving as a seam groove is provided to absorb the contraction of the concrete and prevent the occurrence of cracks. In addition, the joints 5 are often provided as joints of concrete during construction.

[0004]

Since artificial turf is shipped from a factory in a state of being wound into a roll of a predetermined width, when laying artificial turf on a large area such as a tennis court, for example, only one sheet is required. It is rare to lay them, and usually, a plurality of them are joined to construct a tennis court surface or the like.

[0005] In this case, a joint tape is arranged on the back side of the artificial turf, and the tape is used to join the ends of adjacent artificial turf.

[0006] However, depending on the thickness of the joint tape, for example, the ball bounce may slightly change at the joint portion. When the artificial turf 2 is constructed on the concrete base 1 having the joints 5 as described above, the joints 5 are dented, and the concave surface 8 is formed on the finished surface. There is a risk that the ball may be irregular or the foot may be caught and cause injury.

[0007] Empirically, when the joint width is larger than 3 mm, the recess 8 becomes clearly visible. Therefore, in order to prevent the depression 8 due to the joint 5 from occurring, there is a case where an elastic material is put in the joint 5 and the joint is flattened, for example. It is compressed and swells on the surface of the base 1, and conversely, a convex portion appears on the surface of the artificial turf 2.

As described above, when the artificial turf 2 is laid on the concrete base 1 having the joints 5 and the playing surface is constructed over a large area such as a tennis court, the joint between the joint and the artificial turf is required. In these two places, there are peculiar places such as an irregular ball, and it is necessary to perform some processing on both of them.

The present invention has been made in view of such a background, and an object of the present invention is to reduce by half the presence of a peculiar portion which causes irregularity of a ball, for example, when the foundation is made of concrete having joints. It is an object of the present invention to provide an artificial turf stadium in which the flattening process can be easily performed at the unique portion.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an artificial turf having a band shape having a predetermined width on a concrete underlayer having joints using a joint tape.
Lay them together, and fill the artificial grass with grass sand.
In the artificial turf stadium was formed by Hama, the joint tape
Width is wider than the above joints and placed along the same joint
And the adjacent ends of the artificial turf
Butts on the joint tape
It is characterized by being joined together .

[0011] In this case, a line turf to be a line for a game is arranged on the joint tape along the joint .
And the end of artificial turf on both sides of the line turf
And the edge of the line grass and the artificial grass adjacent to it
You may make it join between parts with the said joint tape. On the other hand, when forming joints in concrete, it is preferable that the joints be provided below a competition line or below a stretched portion of the net when a net is used such as a tennis court or a volleyball court.

[0012]

According to the above arrangement, the joint of the concrete base is covered with the joint tape,
Since the ends of the artificial turf adjacent to the joint are joined, the joint processing and the artificial turf joint can be performed in the same place, and the artificial turf dent at the joint is also prevented. It is possible to do.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an artificial turf stadium (facility) according to a first embodiment of the present invention. According to this, the artificial turf stadium has a concrete foundation 1
And an artificial turf 2 laid on the ground 1. A joint 5 having a predetermined width is formed on the base 1, and the artificial turf 2 is made of a synthetic resin fiber backing fabric 3a.
The artificial grass 2 is laid with pile yarns 3b made of synthetic resin fibers such as polypropylene or polyamide.

Since the artificial turf 2 is formed to have a predetermined width in advance, when the artificial turf 2 is laid on the ground 1, its joint is joined by a joint tape 4. The joint tape 4 used here has a base cloth 4a wider than the joint 5 of the base 1, and one surface thereof is coated with a synthetic rubber adhesive 4b.

When the artificial turf 2 is constructed, the joint tape 4 is laid along the joints 5 of the base 1 with the adhesive 4b facing upward. Then, the artificial turf 2 is laid on the joint tape 4 such that the end 2a of the artificial turf 2 is positioned. As a result, the ends 2a of the adjacent artificial grass 2 are joined to each other on the joint tape 4 via the adhesive 4b, and the joining position comes to the joint 5.

As described above, the joint tape 4 is positioned on the joint 5, and the artificial turf 2 is covered to cover the joint 5.
Is not recessed at the joint 5. The relative positional relationship between the joint 5 and the joint portion of the artificial turf 2 is as follows.
It is preferably determined when designing facilities such as a stadium in consideration of the roll width. The concrete of the foundation 1 may be permeable or non-permeable.

Further, the thickness of the joint tape 4 is selected such that the joint tape 4 does not appear as a projection on the surface of the artificial turf 2 when the artificial turf 2 is laid. The thickness is about 1.5 mm at the maximum, preferably 1.0 mm or less. Alternatively, an adhesive may be applied to the back surface side of the base cloth 4a of the joint tape 4 to fix the joint tape 4 itself to the base 1.

Next, a description will be given of a second embodiment of the present invention applied to a case where a line turf as a line for a game is embedded in an artificial turf, with reference to FIG.

First, as in the first embodiment, a joint tape 4 is laid so as to cover the joint 5 of the base 1. Then, on the joint tape 4, the line grass 6 is laid preferably in a portion directly above the joint 5. Thereafter, the artificial turf 2 is laid on both sides of the line turf 6 such that the end 2a is in contact with the end 6a of the line turf 6.

As a result, the artificial turf 2 adjacent on the joint 5 is connected to the same joint tape 4 via the line turf 6.
Joined by.

Unlike the above procedure, after laying the joint tape 4 on the joint 5, one of the artificial grass 2
May be laid so that the end 2a thereof hangs over the joint tape 4, then the line grass 6 is laid along the end 2a, and then the other artificial grass 2 is laid.

FIG. 3 shows a third embodiment in which the first and second embodiments are applied to an actual tennis court and artificial grass is laid. The third embodiment has a width of 3.66 m.
Fig. 3 shows an example in which an artificial turf wound in the form of a roll is used and the tennis court is laid from the ends A to B with three rolls.
The joint 5 of the underlayer 1 was formed at the portion indicated by the bold dashed line.

That is, both side lines C and D, base lines E and F, parts G and H of the service line, parts I and J that are 3.66 m inward from both side lines C and D, and below the net. In each of the portions K, a cutter joint 5 having a width of 5 mm was formed.

The joint tape 4 is made of a polyester base cloth coated with vinyl chloride and having a thickness of 0.3 mm and a width of 250 mm coated with a synthetic rubber adhesive. And the artificial grass 2 was joined together. In this case, as the artificial turf 2, a leaf piece 3b having a pile length of 19 mm is used. After laying the artificial turf 2, sand is poured into the grass to a sand level of 18 mm (about 25 kg / m ² ). Filled.

The second embodiment is applied to the central part of the side lines C and D, the parts of the base lines E and F, and the parts of the service lines G and H. The first embodiment was applied except for the part. Note that the K portion falls under the net of the tennis court and outside the court where no play is made, so there is no hindrance to play. Actually, when playing on this tennis court, there was almost no effect of the joints, and no dents in the artificial turf were seen over time.

[0026]

As described above, according to the present invention,
The following effects are obtained. In other words, an artificial turf having a band shape having a predetermined width is laid on a ground made of concrete cleat having joints.
Lay it together with a piece of tape
In an artificial turf stadium where the grass is filled with sand , the joint tape shall be wider than the joint.
And place it along the same joint, next to the above artificial turf
Abutting each end on the joint,
According to the invention described in claim 1 obtained by connecting the Yointotepu, to be joint cover in the joint tape, without recessed is artificial turf at the joint portion, with there is no risk of hindering the like competition, An artificial turf stadium in which joint processing and artificial turf joint processing can be performed at the same location is obtained.

A concrete base having joints
A band of artificial turf of predetermined width is placed on each of their predetermined ends.
Place a line turf for competition between clubs and use it as joint tape
Lay it together and connect the artificial grass and
At an artificial turf stadium where sand is filled into the grass of the turf
The joint tape to the joint and the line
As a width wider than grass, it can be placed along the same joint
And the line turf on the joint tape as the joint
Along the edge of the artificial turf on both sides of the line turf
Place each on the above line turf and adjacent to it
Connect the ends of the artificial grass with the above joint tape.
According to the invention described in the combined claims 2 and claim 1 same
Processing joints and artificial grass joints at the same location
In addition to what can be done, with joint tape
Since the joints are covered by the line grass, the artificial grass
The dent at the joint portion is more effectively prevented.

According to the third aspect of the present invention, the joint of the base is formed below the competition line, and the joint tape is provided on the joint. The presence of the peculiar part which causes the problem is reduced by half, and the prevention of the dent at the joint part of the artificial turf and the joint of the line turf and the joint of the artificial turf adjacent to the line turf can be performed in the same place. Turf laying work can be streamlined.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an artificial turf stadium according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of an artificial turf stadium according to a second embodiment of the present invention.

FIG. 3 is a plan view of a tennis court to which the first and second embodiments are applied.

FIG. 4 is a cross-sectional view of an artificial grass laying portion of an artificial grass stadium according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ground 2 Artificial turf 2a Edge of artificial turf 3a Backing cloth of artificial turf 3b Pile thread 4 Joint tape 4a Base cloth 4b Adhesive 5 Joint 6 Line turf 7 Sand

Claims (3)

(57) [Claims] 1. A concrete underlay having joints
Attach the artificial turf in the form of a strip with a predetermined width using joint tape.
Laying together, in an artificial turf stadium where the sand of the artificial turf is filled with mesh sand , the joint tape has a width wider than the joint,
Place it along the same joint, and
Butt each end on the joint, and
An artificial turf stadium that is connected by tape . 2. On a concrete underlay having joints
A band of artificial turf of a predetermined width is placed between each of their predetermined ends.
The competition line grass is placed in
Lay together and lay the above artificial turf and line turf
At an artificial turf stadium where sand is filled in the grass of the above, the joint tape is
As well as being wide along the same joint,
Place the line turf on the joint tape along the joint
And place the ends of the artificial turf on both sides of the line turf
Each line, the above line grass and the above adjacent person
Join the edges of the turf with the above joint tape
People Koshiba stadium, characterized in that it was. 3. The artificial turf stadium according to claim 1, wherein the joint of the base is formed below the line for competition, and the joint tape is provided on the joint. .