KR101274373B1 - Apparatus for testing abrasion in artificial turf - Google Patents

Abstract

The present invention relates to an artificial turf wear test apparatus, and more particularly, to an artificial turf wear test apparatus that provides a composite accelerated life test method by ultraviolet light, temperature, humidity, and physical wear by using an ultraviolet light source and a stud wear test. will be.

Description

Apparatus for testing abrasion in artificial turf}

The present invention relates to an artificial turf wear test apparatus, and more particularly, to an artificial turf wear test apparatus that provides a composite accelerated life test method by ultraviolet light, temperature, humidity, and physical wear by using an ultraviolet light source and a stud wear test. will be.

ARTIFICAIAL TURF is developed using artificial materials (PP, PE, Nylon) to similarly realize the shape, use, and characteristics of natural grass, and to overcome the limitations (growth, management costs) of natural grass. Product. It is a grass made of synthetic fibers and is a substitute for artificial grass made of grass. Since it was first manufactured in the United States in 1956, it has been used mainly in sports fields. It can be used in indoor gardens where turf growth is not possible, or in outdoor areas facing the north side of tall buildings with very limited sunshine hours. The main materials are polyvinylidene chloride, polyethylene, polypropylene and nylon.

Artificial turf can always maintain greenness and is easy to manage after construction without being constrained by environmental conditions. On the other hand, there is no seasonal feeling, the texture is somewhat lower than grass, and fading over time. Since it was first adopted at the Asturdome indoor baseball field in Texas in 1966, it has been in the spotlight as an all-weather facility including a soccer field, field hockey field, various indoor interiors and leisure facilities. In 2005, it began to be used as an international official stadium by FIFA.

Artificial turf pile is mainly made of PP, PE, and polymer material, and wear occurs as it is used in a complex deterioration environment due to external environmental and physical requirements.

The test method by the physical wear of such artificial turf pile has been variously proposed in the past, but has a limit to evaluate the endurance life under the actual use conditions, UV composite stud wear test for long-term durability evaluation under repeated use conditions A method is required.

The present invention has been made to solve the above problems, overcoming the limitations of conventional test methods, and using the ultraviolet light source and the stud wear test, the composite accelerated life test method by ultraviolet, temperature, humidity and physical wear To provide.

The present invention provides the following means for solving the above problems.

The artificial turf wear test apparatus according to the present invention includes a wear generating portion 10, a specimen seating portion 20, and an ultraviolet irradiating portion 30 provided in the chamber 1.

The wear generating part 10 includes a guide rail 18, a body part provided to linearly move along the guide rail 18, and a plurality of studs 13 installed around the body part so as to be rotatable. ) Is provided with a roller member, the specimen seating portion 20 is located on the lower side of the wear generating portion 10 along the guide rail 18, the plate-shaped member 25 is seated artificial turf specimen on the upper side ), Wherein the ultraviolet irradiation part 30 includes a light source part 32 that is height-adjustable in the chamber 1 and generates ultraviolet light on the artificial turf specimen, wherein the artificial turf specimen comprises the stud 13. It is provided to contact the), it is characterized in that the friction force is provided from the stud 13 by the rotation of the roller member.

The specimen seating portion 20 is provided to move perpendicular to the movement direction of the roller member.

The roller member includes a first roller 11 and a second roller 12 provided in parallel, wherein the first roller 11 and the second roller 12 are mutually at the contact point with the artificial grass specimen. It is provided to have a different linear velocity.

The specimen seating unit 20 is provided so that two artificial turf specimens 101 and 102 can be separated and seated by a predetermined distance by the inclined member 21, and two light source units 32 and 33 are provided. And, it is installed on each of the artificial turf specimens, the light source is characterized in that using a metal halide lamp.

The chamber 1 includes a spray 40 for supplying moisture into the chamber 1, wherein the chamber 1 maintains a temperature of 63 ± 3 degrees Celsius in abrasion test and a relative humidity of 50 degrees. And ± 5 percent.

Artificial grass wear test apparatus according to the present invention has the advantage of performing the wear test of the artificial grass by applying the effects of ultraviolet, temperature, humidity and physical wear at the same time.

In addition, standards for measuring the properties or performance of artificial turf may be established to contribute to the standardization of related products.

1 is a structural diagram of the artificial turf wear test apparatus according to the present invention.
2 is a partial perspective view of the artificial turf wear test apparatus according to the present invention.
Figure 3 is a perspective view of the wear generating portion used in the artificial turf wear test apparatus according to the present invention.
Figure 4 is an operation explanatory diagram of the artificial grass wear test apparatus according to the present invention.
5 is an operation explanatory diagram of the artificial grass wear test apparatus according to the present invention.
Figure 6 is a view showing the movement path of the wear generating portion of the artificial turf wear test apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Even if the terms are the same, it is to be noted that when the portions to be displayed differ, the reference signs do not coincide.

The terms to be described below are terms set in consideration of functions in the present invention, and may be changed according to a user's intention or custom such as an experimenter and a measurer, and the definitions should be made based on the contents throughout the present specification.

Artificial turf deteriorates polymer due to changes in external environmental conditions such as ultraviolet rays, road temperature and moisture, and accelerates deterioration of grass piles due to the combined action of spikes, physical wear and impact. The present invention is characterized by providing an artificial turf wear test apparatus that reflects all of these complex factors.

Figure 1 shows the overall configuration of the artificial turf wear test apparatus according to the present invention. Referring to FIG. 1, the artificial grass wear test apparatus includes a chamber 1, a wear generation part 10 provided in the chamber, a specimen seating part 20, and an ultraviolet irradiation part for blocking the outside when the wear test operation is performed. (30).

A feature of the present invention is that the test environment of the artificial turf specimen is carried out in an atmosphere having ultraviolet rays, temperature, and humidity to which the actual turf is exposed. In order to create such an atmosphere, the chamber 1 is cut off from the external environment. In addition, the test apparatus is characterized by irradiating the artificial turf specimen with ultraviolet rays, and performs a function to block the situation harmful to the human body from leaking to the outside.

The ultraviolet irradiation part 30 is fixedly installed from the ceiling of the chamber 1, and is a structure which can adjust the height from a floor. The height adjusting means 4, 5 may be a combination of a motor and a wire comprising a winch, or a combination of a motor and a linear screw member. The present invention is characterized in that the ultraviolet irradiation unit 30 is capable of height adjustment to meet the test performance conditions, it does not limit the scope of rights to the specific configuration of the height adjustment means.

One of the main features of the present invention lies in the structure of the wear generating portion 10. The wear generating unit 10 generates abrasion due to frictional force on the specimen while repeatedly performing linear movement in the chamber.

Referring to FIG. 2, the wear generating unit 10 includes a linear guide rail 18, a body portion provided to perform linear movement along the guide rail 18, and the body portion is rotatable. It includes a roller member provided with a plurality of studs 13 on the periphery.

The roller member is preferably provided so that the height is adjusted with respect to the body portion. This is to adjust the height so that the studs of the roller member can come into contact with the specimen after the specimen is seated. This configuration is a fact that is generally known to those skilled in the art for a specific structure, detailed description thereof will be omitted.

The guide rails 18 are preferably spaced apart by a predetermined distance for stability of movement. The body portion includes a pair of guide members 17 into which the guide rails 18 are inserted and movable, and a connecting member 14 connecting the guide members 17 to each other. 3, the connecting member 14 is provided with a roller support member 16 to support the roller member. The body portion is to perform a reciprocating linear motion along the guide rail 18, the moving linear velocity is preferably 0.25 ± 0.05m / sec.

The roller member includes a first roller 11 and a second roller 12 provided in parallel. However, the test apparatus according to the present invention does not limit the number of rollers to the right range. In the case of using two rollers as shown in FIG. 3, the rollers may be rotated using a rotational drive, respectively, and after driving one roller, the other roller may be rotated by a power transmission means by a pulley or a chain. In this case, it is possible to change the gear ratio or change the diameter of the pulley in order to adjust the rotation speed of the first roller and the second roller. When the first roller is rotated seven times, the second roller is preferably rotated three times. The reason for using these two rollers is to simulate the mechanical wear of the surface during normal use.

A plurality of studs is provided around the roller member. The number of studs per roller is preferably about 140 to 150 pieces. The stud is mounted on a soccer shoe, and preferably has a diameter of 13 mm. It is preferable that the roller is attached to the stud-mounted roller so that the rotational speed of the roller is 1: 1.75. It is important to ensure that studs do not collide repeatedly at the same point in the construction of the test apparatus. This can be done by freely moving the last roller of every cycle.

In the figure, the studs are arranged very regularly on the rollers, but this is for convenience of description only, and the studs are preferably arranged randomly so as not to collide with the same point as much as possible.

The specimen seating part 20 is located below the wear generating part 10 along the guide rail 18. The length of the specimen seat is provided in elongated shape along the guide rail 18. 2, two artificial turf specimens are placed side by side. However, the number of artificial specimens is not important and it is possible to place one or three or more.

An important feature of the specimen seating portion 20 is that it is provided to move perpendicular to the direction of movement of the roller member. As shown in FIG. 4, while the wear generating part 10 moves in a direction parallel to the guide rail 18, the specimen seating part 20 moves in a direction perpendicular to the guide rail 18. do. However, it is preferable that the specimen seating portion is repeatedly moved within the width of the roller member. The speed of movement of the specimen seating portion is preferably 0.015 ± 0.005 m.sec.

Referring to FIG. 5, the specimen seating unit 20 includes a plate-shaped member 25 on which an artificial grass specimen is seated. In the lower side, the guide rail 18 and the guide 27 are installed in the vertical direction, and the member 26 surrounding the guide rail 26 is connected to perform the movement.

In the specimen seating unit 20, a plurality of artificial turf specimens are positioned to simultaneously perform performance evaluation. Referring to FIG. 5, two artificial turf specimens 101 and 102 are provided to be separated and seated by a predetermined distance by the inclined member 21. The specimen seating portion 20 may be tested after placing the filler together with the artificial grass pile. Therefore, it is preferable to provide the inclined member 21 between the artificial turf specimens so that the fillers between the specimens do not move with each other.

In addition, referring to Figure 4 it is preferable to install the partition wall 22 on both sides of the specimen seating portion 20 so as not to leave the filler and the like during the test. The specimen seating portion 20 is located between the pair of guide rails 18, it is located below the wear generating portion (10).

The ultraviolet irradiation part 30 includes a light source part 32 that is height adjustable in the chamber 1 and generates ultraviolet light on the artificial turf specimen. The light source unit 32 preferably uses a metal halide lamp as a light source, but is not limited to the type of light source. The light intensity is generally 400 W / m 2, and the wavelength is preferably 300 nm to 800 nm. Light irradiation is 102 ± 0.5 minutes per cycle, it is preferable that the operation to simultaneously perform the light irradiation and water spray is 18 ± 0.5 minutes.

Ultraviolet irradiation unit 30 is provided to enable height adjustment in the chamber (1). In FIG. 5, the height is adjusted using the motor and the screw member, but the height may be adjusted using the winch motor and the wire member.

The light source units 32 and 33 are provided in accordance with the number of specimens. As shown in FIG. 2, since two artificial turf specimens are used, two are used correspondingly. Importantly, the position of the light source is preferably installed on the upper part of the specimen.

However, it is important to ensure that the ultraviolet (39) emitted from the light source unit does not affect the artificial turf specimen located on the other side. In this case, it is difficult to make an accurate evaluation because twice the ultraviolet rays are irradiated to a specific part of the specimen compared to other parts. Therefore, in the present invention, in addition to installing the two light source parts spaced apart from each other, artificial turf specimens are also provided to be spaced apart from each other through the inclined member (21).

Artificial turf specimen is provided to contact the stud 13, characterized in that the friction force is provided from the stud 13 by the rotation of the roller member. The procedure for this is described in more detail as follows.

Install artificial turf specimens in the specimen seating section 20 and fill them as tight and tight as possible according to the producer's instructions. The prepared specimen is placed on the specimen seating portion 20, and the height of the roller is adjusted so that all the studs come into contact with the filler layer or the carpet pile.

In principle, the test should be continuous. If the test is unavoidably interrupted for inspection, settlement, and detachment of the specimen, the interruption time should be minimized. Should give.

However, artificial turf specimens should not be supplemented with any new material and will be caused by gentle trimming of the pile. As required for the specified properties, the fully conditioned (non-end) area of the specimen is evaluated.

The artificial turf specimen used in this test apparatus shall be at least 300mm X 300mm.

The chamber 1 may include a spray 40 for supplying moisture into the chamber 1. Referring to FIG. 5, moisture 49 is supplied from the spray 40 to the artificial turf specimen. This is to control the humidity of the environment during the test. During the wear test of artificial turf specimens, the chamber temperature is preferably maintained at 63 ± 3 degrees Celsius and the relative humidity is 50 ± 5 percent.

Figure 6 shows the path through which one stud moves the artificial turf specimen. Since the wear generating part 10 and the specimen seating part 20 simultaneously move vertically with respect to each other, one stud moves the artificial turf specimen in a somewhat zigzag shape.

Abrasion testing by stud mounted rollers can be standardized to withstand 5000 or 20200 cycles, which is guaranteed for 7 years.

The present invention is not limited to the scope of the embodiments by the above embodiments, all having the technical spirit of the present invention can be seen to fall within the scope of the present invention, the present invention is the scope of the claims by the claims Note that is determined.

DESCRIPTION OF SYMBOLS 1 Chamber, 10 abrasion generating part, 20 specimen mounting part, 30 ultraviolet irradiation part

Claims (7)

In the artificial turf wear test apparatus including a wear generating portion 10, a specimen seating portion 20, and an ultraviolet irradiation portion 30 provided in the chamber (1),
The wear generating part 10 includes a guide rail 18, a body part provided to linearly move along the guide rail 18, and a plurality of studs 13 installed around the body part so as to be rotatable. ) Is provided with a roller member,
The specimen seating unit 20 is located below the wear generating unit 10 along the guide rail 18, and includes a plate-shaped member 25, the artificial turf specimen is seated on the upper side,
The ultraviolet irradiation part 30 includes a light source part 32 that is height adjustable in the chamber 1 and generates ultraviolet light on the artificial turf specimen.
The artificial turf specimen is provided to contact the stud 13, and receives the friction force from the stud 13 by the rotation of the roller member,
The roller member includes a first roller 11 and a second roller 12 provided in parallel,
The first roller 11 and the second roller 12 are provided to have a different linear velocity at the point of contact with the artificial turf specimen,
Artificial grass wear test device.
The method according to claim 1,
The specimen seating portion 20 is provided to move perpendicular to the movement direction of the roller member,
Artificial grass wear test device.
delete The method according to claim 1,
The specimen seating portion 20 is provided so that two artificial turf specimens 101 and 102 can be separated and seated by a predetermined distance by the inclined member 21,
Two light source units 32 and 33 are provided, and are respectively installed on the artificial turf specimens.
Artificial grass wear test device.
The method according to claim 1,
The light source unit using a metal halide lamp,
Artificial grass wear test device.
The method according to claim 1,
In the chamber 1 includes a spray 40 for supplying moisture into the chamber 1,
Artificial grass wear test device.
The method according to claim 1,
The chamber 1 is characterized in that the temperature is maintained at 63 ± 3 degrees Celsius during the wear test, the relative humidity is 50 ± 5 percent,
Artificial grass wear test device.

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