JP2005220514A - Marking method of artificial turf and pile yarn mower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a marking method of an artificial turf and a mower causing no easy separation by enhancing the sticking strength of the artificial turf for marking, by easily and surely sticking the artificial turf for marking to the artificial turf for a body, when applying the marking to the artificial turf. <P>SOLUTION: The pile yarn 3 of a marking expected place of the body side artificial turf 1 is mowed by leaving a specific height (2 to 6 mm) from the surface of base cloth 2. An adhesive 4 is applied to this mowed place, and the artificial turf 5 for the marking is stuck. Since the pile yarn 3 is left, an anchor effect operates in adhesion, and adhesive strength is enhanced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a construction method for applying various markings for lines and the like to a lawn surface of an artificial lawn laid on a stadium, a promenade, a plaza, and the like, and a pile cutting device used therefor.

2. Description of the Related Art Conventionally, athletic stadiums and the like, artificial lawns having characteristics such as easy maintenance and maintenance of the stadium, stability of ground conditions, and excellent water permeability are frequently used. In addition, the artificial lawn includes those that can be filled and those that can not be filled, such as sand and rubber chips.
These artificial lawns are generally made of polyethylene terephthalate (trade name, Tetoron), polypropylene resin, polyethylene resin, polyester resin, or a mixture of these, and a large number of synthetic resin pile yarns are planted. It is a thing. Also, for this pile yarn, polyamide resin (trade name, nylon), polyethylene resin, polypropylene resin, polyvinylidene chloride resin, and the like, or a mixture thereof is usually used.
Usually, when laying such an artificial lawn, the artificial lawn composed of a roll-shaped base cloth having a width of about 3 to 4 m is developed and applied. The joint part of these base fabrics is constructed by laying a polyester resin joint sheet on the lower surface of the base fabric joint part, applying an adhesive, and bonding the base fabric and the joint sheet together. It has been. In addition, in order to mark the artificial lawn with lines and the like, it is necessary to lay artificial lawns of different colors as in the joint method described above. A joint sheet is laid on the lower surface of the cut portion, and an artificial lawn for marking is laid on the upper surface to be bonded and fixed.

JP 2000-192411 A JP-A-63-297606

  However, when marking is performed on the turf surface by the above-mentioned conventional construction method, there arises a problem that peeling occurs on the laid artificial lawn (for the main body and the marking). The cause is firstly the difference in shrinkage between the base fabric of the artificial lawn and the joint sheet. As a result, there is a difference in the amount of shrinkage due to a temperature change or the like, and peeling occurs between the two. Second, when the artificial lawn base fabric is cut, the base fabric itself is distorted due to the construction tension, and the joint sheet is joined as it is, which causes peeling and wrinkles over time. Become. In addition, since cutting is indispensable for marking, there are many cuts on the base fabric, which makes it difficult to draw accurate and fine dimensions for competitions, etc. In addition to this, there is a problem that construction takes time.

  In view of these points, the present invention has a high adhesion strength of the marking artificial lawn, and does not peel or detach. Further, the artificial lawn base fabric of the main body does not peel or wrinkle. To provide marking construction methods. Furthermore, the present invention provides a marking enforcement method that improves distortion after laying an artificial lawn, has high construction accuracy, is simple in work, and can reduce the amount of work. Another object of the present invention is to provide a pile yarn cutting device that can accurately cut pile yarn at a certain height.

  The technical means of the artificial lawn marking enforcement method of the present invention is to cut off the pile yarn of the artificial lawn at the planned marking location, leaving a certain height, and then paste the artificial lawn for marking through the adhesive onto it. It is in.

  Moreover, it is preferable that the cutting height of the pile yarn is 2 to 6 mm from the base fabric surface.

  The technical means of the mowing apparatus according to the present invention includes a rail member placed on an artificial lawn, a slider movably attached to the rail member, and a mower attached to a side surface of the slider so that the height can be adjusted. Pile yarn that consists of a support material, a mower fixed to the support material, and a vacuum mounted on the slider, and the height of the mower can be adjusted to adjust the cutting height. It is to make it cut with a mower.

  In the marking enforcement method of the present invention, the pile yarn is cut and left at a certain height, and the artificial lawn for marking is pasted thereon, and the base fabric of the artificial lawn of the main body is not cut. Unevenness does not occur, distortion can be reduced, and wrinkles and peeling can be prevented. In addition, since the base fabric is not damaged, the product life is long and the base fabric is not distorted, so the marking area can be accurately drawn and the cutting process is not required. There is little and can reduce work. Further, since the pile yarn is cut away while leaving a certain height, the remaining pile yarn exhibits an anchor effect, the adhesive strength is increased, and peeling can be prevented.

  According to the second aspect, since the cutting height of the pile yarn is specified as 2 to 6 mm, the adhesive strength can be surely increased as compared with the conventional method (using a joint sheet).

  The mowing apparatus of the present invention mounts a rail material on an artificial lawn, moves the slider on the artificial lawn, and mows so that the mowing accuracy is high and an accurate drawing of the marking portion is possible. Since the cutting height is determined by adjusting the vertical position of the mower, it is possible to accurately determine the cutting height.

  The best mode for carrying out the marking method according to the present invention will be described with reference to the drawings. First, the present invention is not limited to any kind of artificial lawn, and can be applied to all artificial lawns. That is, the material of the artificial turf base fabric is free and may be made of synthetic resin or natural fiber. Furthermore, there are no restrictions on the material and length of the pile yarn, and the material can be freely applied to those made of synthetic resin or natural fiber, short pile yarn, or long yarn. Moreover, it can be used for those using fillers such as sand and rubber chips and those not using them.

  In the present invention, the artificial lawn base fabric is not cut at the marking portion. For this reason, tension unevenness does not occur, distortion due to joining can be reduced, and wrinkles and separation after finishing can be eliminated. Further, since the base fabric is not damaged, the product life can be extended. In addition, the line can be drawn directly on the artificial lawn, enabling high-precision drawing.

  Further, in the present invention, the pile yarn at the marking portion is cut. At this time, the pile yarn is allowed to remain for a certain length. And the artificial lawn for marking is affixed on this using an adhesive agent. As a result, the remaining pile yarn acts as an anchor, the adhesion effect is increased, and peeling of the marking artificial lawn can be prevented.

  FIG. 1 shows a construction procedure when marking as a line on a turf surface according to the present invention. First, the pile yarn 3 of the planned marking portion of the artificial lawn (main body) 1 laid in advance is cut off. The area A to be cut in the case of line marking is usually a 50 mm wide line. Further, when the pile yarn 3 is cut, the pile yarn 3 is left from the base fabric 2 by a certain height H. This height H is usually 1 to 10 mm, preferably 2 to 6 mm. Next, the adhesive 4 is applied to the cut portion, and then, for example, an artificial lawn 5 for line marking with different coloring is pasted. Since the remaining pile yarn exhibits an anchor effect, the adhesive force between the upper and lower artificial grasses 1 and 5 is strong, and the marking artificial grass 5 does not easily peel off. If there is no pile yarn or its length is not appropriate, the base fabric 2 of the artificial lawn 1 on the main body side is torn up and down, and peeling occurs.

(Test example)
When laying an artificial lawn for a line, a test was conducted on the adhesive strength when the height when the pile yarn was cut was changed. Moreover, the adhesive strength with what pasted the artificial lawn for a line using the joint sheet of the conventional construction method was compared. The details of the test are as follows.
Artificial lawn fabric material:
Polypropylene and polyethylene blend artificial lawn pile yarn:
Polyethylene / polypropylene mixed pile color of the pile yarn Green for the main body, white for the line Pile yarn length 50mm
Cutting height: 0-10mm
adhesive:
Epoxy / urethane adhesive (trade name: Rubylon Ace)
The coating amount is 0.2 g / cm ² which is a standard amount when using a conventional joint sheet.
Joint sheet:
Base fabric material is polyester surface film laminate (trade name: turbo canvas # 4400)
Curing conditions:
A pier and a sandbag (35 kg / bag) were placed and removed in 24 hours in the same manner as normal work.
Maintain 20 ° C for 48 hours indoors. After that, it was left indoors in its natural state.
Specimen width: 50 mm
Measurement method:
The artificial lawn of the main body was fixed, and only the bonded artificial lawn for the line was pulled up using a digital force gauge, and the load at the time of peeling was measured. The measurement was performed 5 times and the average value was taken. The digital force gauge is a machine that measures various loads. In the examples, those made by A & D Co., Ltd. were used. The linear pressure is a unit (kg / cm) representing how many kg of load is applied per test piece width (1 cm), and is a calculated value based on the measurement result. In the examples, the test was conducted with a width of 5 cm.

  As a result of the test of Table 1, after 24 hours, 48 hours and 1 week, when the cutting height is 2 to 6 mm, the linear pressure is higher than that of the conventional method (using a joint sheet), and adhesion It turns out that power is high.

  Next, with reference to FIG. 2, the cutting device 10 for the pile yarn 3 will be described. The rail material 11 made of an angle material is placed along the cutting position of the artificial lawn 1. A slider 12 is movably mounted on the rail material 11. 13 is a roller and 14 is a side contact. A mower support 15 is attached to the outer surface of the slider 12 so that the vertical position can be adjusted. Reference numeral 16 denotes a wing nut for adjusting and fixing. These support members 15 are designed to hold the body of the mower 17 and are usually attached to the side surface of the slider 12 by adjusting the height and direction of the mower 17. It can be fixed firmly. In the embodiment, a clipper for shearing sheep sheep was used as the mower 17, but its adoption is free. A battery 18 and a vacuum 19 are mounted on the slider 12, and power is supplied from the battery 18 to the vacuum 19 and the mower 17. Further, an intake hose 20 extends from the vacuum 19 and is used to stand upright on the upper surface of the pile yarn to be trimmed, and to accurately determine the trimming height. By using the mowing apparatus as described above, a portion to be trimmed, for example, a line having the same width, can be trimmed easily and accurately, and the trimming height can be easily set by adjusting the height of the mower 17.

  The present invention is not limited to the above-described embodiments, and can be freely modified within the scope of the claims. In particular, the type of artificial grass and pile yarn is free, and the type of mower is also free.

Sectional drawing which showed the process of the marking construction method of this invention in steps. Sectional drawing of the mowing apparatus of this invention.

Explanation of symbols

1 Artificial lawn (main unit)
2 Base fabric 3 Pile yarn 4 Adhesive 5 Artificial lawn (for marking)
DESCRIPTION OF SYMBOLS 10 Mowing device 11 Rail material 12 Slider 15 Mower support material 17 Mowing machine 19 Vacuum 20 Intake hose

Claims (3)

The artificial lawn marking construction method, characterized in that the artificial lawn pile yarn of the planned marking area is cut away by leaving a certain height, and the artificial lawn for marking is pasted on it with an adhesive. The artificial lawn marking construction method according to claim 1, wherein the pile yarn is cut to a height of 2 to 6 mm from the base fabric surface. A rail member placed on the artificial lawn, a slider movably attached to the rail member, a mower support member attached to the side surface of the slider so as to be adjustable in height, and fixed to the support member Pile thread trimming, which consists of a mower and a vacuum mounted on a slider, and the height of the mower can be adjusted to adjust the cutting height. apparatus.