WO2005001205A1

WO2005001205A1 - Artificial lawn and method of manufacturing the same

Info

Publication number: WO2005001205A1
Application number: PCT/JP2004/008798
Authority: WO
Inventors: Ryoichi Matsuoka
Original assignee: Ryoichi Matsuoka
Priority date: 2003-06-30
Filing date: 2004-06-23
Publication date: 2005-01-06
Also published as: JP2005023602A; KR20060024773A; JP4031738B2; CN100510260C; CN1795308A; KR101088865B1; US20060154016A1

Abstract

An artificial lawn capable of preventing the removal of imitation lawn materials from an underlying board (3) due to the effect of temperature on adhesive agent, deterioration of the adhesive agent with age, application of external forces exceeding adhesive strength, and application of load by a strong side slip force, comprising the imitation lawn materials (2) and the underlying board (3) in which the imitation lawn materials are implanted. Each of the imitation lawn materials (2) further comprises a root part (5) having a stump formed of one lump of leaf-like pieces (4), and the underlying board (3) further comprises a plurality of root part pots (6) for pressing therein the root parts (5) of the imitation lawn materials (2). Needle members (7) formed in a fork shape with two needle tips are driven into the upper parts of the root parts (5) of the imitation lawn materials (2) pushed into the root part pots (6) of the underlying board (3) so that the needle members cross the center parts of the stumps having the leaf-like pieces (4) pushed aside and straddle both sides of the opening parts of the root part pots (6) to fix the imitation lawn materials (2) to the underlying board (3).

Description

Specification

Artificial turf and method for producing the same

Technical field

The present invention relates to an artificial turf and a method for producing the same.

Background art

[0002] As artificial turf, it has an imitation turf and a laying board for planting the simulated turf. Among them, the simulated turf has a root portion for each plant in which a lump of leaf-like pieces is put together. It is known that a plurality of root pots for individually pushing the roots of the imitation turf are arranged in an orderly manner (for example, see Patent Document 1). A large number of plants are planted on the simulated turf so as to cover almost the entire surface of the laying board. In addition, the root pot of the laying board is designed to also serve as a leg as a laying board (ie, the entire artificial turf) due to the outer shape of the peripheral wall portion forming the pot.

[0003] The structure for fixing the root of the imitation turf to the root pot of the laying board is such that a metal fitting that is entangled in the root of the imitation turf is fitted inside the root pot so as to be stretched in the root pot, There have been proposed ones in which the circumference is tied with a wire, and the wire is forcibly fitted into the root pot with this wire (see Fig. 16 and Fig. 17), or one that is fixed with an adhesive (d). Are also disclosed in Patent Document 1).

Patent Document 1: JP-A-8-333708

Disclosure of the invention

Problems to be solved by the invention

[0004] When an adhesive is used to fix the root of the imitation turf to the root pot of the laying machine, the adhesive is softened by being exposed to a high-temperature environment due to factors such as temperature, humidity, impact, and direct sunlight. This caused the imitation turf to come off. Needless to say, the imitation turf sometimes comes off when the adhesive deteriorates over time or when an external force exceeding the adhesive strength is applied. Even if the spreader is made of resin, the spreader itself may be softened or deformed at high temperatures in summer, etc. there were.

[0005] On the other hand, a fixing structure other than the adhesive (using a metal fitting for tension or a wire for forcibly fitting, etc.) ), The imitation turf sometimes comes off when a strong skidding force is applied on the imitation turf.

In particular, as shown in FIG. 16 and FIG. 17, when the circumference of the root portion 100 is tied with a wire and the wire is forcibly fitted into the root pot 101 with this wire, the winding diameter of the wire becomes uneven. As a result, if the winding diameter is large (see FIG. 16), the root pot 101 may be deformed, leading to early deterioration or breakage of the laying board 102, or the planting state of the imitation turf 103 may be uneven, Conversely, when the winding diameter was small (see FIG. 17), there was a drawback that it led to detachment from the root pot 101.

[0006] The present invention has been made in view of the above circumstances, and is based on the influence of temperature on the adhesive, the aging of the adhesive, the external force load higher than the adhesive strength, the load of strong side slip force, and the like. The purpose of the present invention is to provide an artificial turf in which imitation turf does not come off and a method for producing the same.

Means for solving the problem

[0007] To achieve the above object, the present invention takes the following measures.

That is, the artificial turf 1 according to the present invention has imitation turf 2 and a laying board 3 for planting the turf 2, and the imitation turf 2 includes a group of leaf-like pieces 4 in one lump. The base 3 has a plurality of root pots 6 into which the roots 5 of the imitation turf 2 are individually pushed. Then, with the root 5 of the imitation turf 2 pushed into the root pot 6 of the laying board 3, it crosses the central part of the plant where the leaf-shaped pieces 4 are divided and straddles both sides of the opening of the root pot 6. A forked needle member 7 having two needle tips is driven. Thereby, the imitation turf 2 is fixed to the spreader 3.

[0008] Since the imitation turf 2 and the laying board 3 are physically connected to each other by the forked needle member 7 in this manner, the bonding strength between the two is strong, and the simulated turf 2 is moved from the laying board 3 to the Detachment is prevented.

The laying board 3 has a pair of guide grooves 15 (which specify the driving positions of both needle tips in the needle member 7) at both sides of the peripheral wall of each root pot 6 opposite to each other across the opening of the root pot 6. Or 35) is preferably formed. With such a guide groove 15 (or 35), the driving position of the needle member 7 can be easily adjusted to a predetermined position, and The work itself can be performed easily and reliably.

[0009] Needle member 7 can allow both forked needle tips to penetrate the bottom of root pot 6 in laying board 3. In this case, it is preferable that the penetrated needle point be bent and turned back. By doing so, the needle member 7 is prevented from coming off. On the other hand, in the method for producing an artificial turf according to the present invention, a plurality of root pots 6 capable of pushing the individual roots 5 are formed on the imitation turf 2 having the roots 5 for each plant in which the lump of leaf 4 is put together. As a method of planting on the laid bed 3, the root 5 of the imitation turf 2 is pushed into each root pot 6 of the laid board 3, and the leaf 4 is separated from the upper part of the root 5. The needle member 7 (having a forked shape having two needle tips) is struck while crossing the center and straddling both sides of the opening of the root pot 6.

[0010] It should be noted that the imitation turf 2 is not limited to the one whose root portion 5 is completed from the beginning, and it is possible to manufacture the imitation turf 2 at the same time as the planting on the laying board 3 at the same time. is there. In other words, in this case, a lot of thin resin cords 24 are bundled together, and a rope-shaped twisted turf material 23 is folded in half in the longitudinal direction, and the two-folded portion is placed on each root pot of the spreader 3. Push into 6. Then, the bifurcated needle member 7 is slid across the two-folded portion from the root pot 6 to the crotch portion where the turf material 23 extends in two hands, and crosses the crotch portion and straddles both sides of the opening of the root pot 6. Drive in. Thereafter, the root pot 6 powers the operation of untwisting the stretched turf material 23 and breaking the resin cord 24 apart. In this way, the imitation turf 2 is completed by untwisting the rope of the turf material 23 and separating the resin cord 24.

[0011] There are the following methods for producing an artificial turf according to the present invention. That is, the above-mentioned turf material 23 is folded in half along the longitudinal direction, and the two-fold portion is pushed into each root pot 6 of the spreader 3, and the turf material 23 is separated from the root pot 6 by the two-fold portion. The manufacturing method is the same as that described above up to the point where the bifurcated needle member 7 is driven into the crotch portion extending bilaterally across the crotch portion and straddling both sides of the opening of the root pot 6.

[0012] Here, one of the extended turf raw materials 23 is folded into two at a position where it reaches the adjacent root pot 6, and the folded portion is pushed into the root pot 6. Then, in the same manner as above, a forked needle member 7 is driven into the crotch portion bordering the two-fold portion. Then, the turf raw material 23 bridged between the adjacent root pots 6 is cut at an intermediate portion thereof. Thereafter, the root pot 6 powers the operation of untwisting the ropes of the turf material 23 that has protruded, thereby separating the resin cords 24. As described above, if the procedure of pushing the turf material 23 into the root pot 6 and driving the needle member 7 in advance and then cutting the turf material 23 is followed, the fixing and cutting of the turf material 23 are performed in a similar manner. Each can be separated and independent, and work can be efficiently performed.

[0013] In addition, when such a procedure is adopted, a plurality of turf materials 23 are arranged in parallel and are simultaneously directed to the laying board 3 and sent out, and at the same time, all the turf materials 23 are supplied to the same number of root pots 6 as the same. It is also possible to adopt a procedure of pushing them into the rows at the same time. As a result, the working efficiency can be further improved.

The invention's effect

[0014] As is clear from the above description, in the artificial turf and the method of manufacturing the same according to the present invention, the influence of temperature on the adhesive, the aging of the adhesive, the external force load exceeding the adhesive strength, the strong lateral sliding force, and the like. The imitation turf does not come off from the laying board 3 due to the load on the floor. Brief Description of Drawings

FIG. 1 is a side sectional view showing a first embodiment of an artificial turf according to the present invention.

FIG. 2 is a perspective view corresponding to FIG. 1.

FIG. 3 is a plan view showing a laying board used in the artificial turf of the first embodiment.

FIG. 4 is a perspective view showing a turf material used in the artificial turf of the first embodiment.

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 1.

FIG. 6 is a side cross-sectional view showing a state where a needle member has been driven in the process of manufacturing the artificial turf of the first embodiment.

[FIG. 7] FIG. 7 is a view taken along line BB of FIG.

FIG. 8 is a side cross-sectional view showing a state where a needle member is being driven in the process of manufacturing the artificial turf of the first embodiment.

FIG. 9 is a perspective view showing a laying board used in a second embodiment of the artificial turf according to the present invention.

FIG. 10 is a perspective view showing a process of manufacturing the artificial turf of the second embodiment. FIG. 11 is a perspective view showing another example of the imitation turf.

Garden 12] FIG. 12 is a sectional perspective view showing an example in which an opening is provided at the bottom of the root pot.

FIG. 13 is a plan view corresponding to FIG.

Garden 14] FIG. 14 is a side cross-sectional view showing a situation where a needle member is driven into the root pot of FIG. 12 (turf members are omitted).

Garden 15] FIG. 15 is a perspective view illustrating a process flow in another embodiment of the artificial turf manufacturing method according to the present invention.

Garden 16] FIG. 16 is a side sectional view showing an example of a defect in a conventional artificial turf.

Garden 17] FIG. 17 is a side sectional view showing another example of a defect of the conventional artificial turf.

Explanation of symbols

1 artificial grass

2 Imitation grass

3 Laying board

4 leaflet

5 Root

6 Root pot

7 Needle member

15 Guide groove

23 Grass material

24 strings

35 Guide groove

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 8 show a first embodiment of an artificial turf 1 according to the present invention. The artificial turf 1 includes an artificial turf 2 and a laying board 3 for planting the artificial turf 2. Have. The imitation turf 2 has a root 5 for each plant in which a group of foliated pieces 4 are put together, while the laying board 3 moves the imitation turf 2 at a predetermined distance from each individual plant (root 5). It has a plurality of root pots 6 so that it can be allocated and arranged. And each imitation turf 2 has two needle points It is fixed to the laying board 3 by a bifurcated needle member 7.

[0018] The laying board 3 is formed of a flexible or hard plastic, rubber, or the like. The shape and size of the entire laying board 3 in plan view are not limited at all, and may be, for example, a square, a rectangle, a circle or the like having a length and width of about several tens of centimeters, a tatami-sized sheet, or a sheet-shaped sheet. Or it can be long.

In the spreader 3 in the example, the root pots 6 are arranged in a vertical and horizontal manner via a convex base 8 having a square shape in plan view. The protruding base 8 has a function of arranging the root pots 6 at predetermined intervals with respect to each other, and also has a function of imparting predetermined rigidity by making the side sectional shape of the laying board 3 uneven. A plurality of (four) openings 9 each having a tapered shape are provided on the upper surface of each convex base 8, and a rectangular through hole 10 is provided between the adjacent convex bases 8 and 8. Therefore, these ensure the water permeability of the spreader 3

[0019] The root pot 6 is formed by making the inside of the pot open at the upper side by a leg portion 11 protruding in a cup shape with a bottom on the lower surface side of the laying board 3 opposite to the convex base 8. . The lower end surface of the leg 11 is a ground contact surface, and a drain space can be secured on the lower surface of the spreader 3 by the height of the cup shape. A rib 12 is provided on the outer periphery of the lower end surface of the leg 11, and the bottom of the root pot 6 is formed as a raised bottom. That is, the raised bottom space 13 is formed inside the rib 12. A pair of two guide grooves 15 extending in the depth direction on both sides (opposing positions) across the opening of the root pot 6 are formed in the peripheral wall of the root pot 6. These guide grooves 15 are open on the opening side of the root pot 6. Note that the bottom side of the root pot 6 may be closed or open (see FIGS. 12 to 14 described later).

[0020] The root 5 of the imitation turf 2 is pushed into the root pot 6, and the above-described bifurcated needle is passed across the upper center of the root 5, that is, the center of the plant where the leaf-shaped pieces 4 are separated. Member 7 is driven. At this time, the needle member 7 straddles both sides of the opening of the root pot 6, and penetrates the needle tips on both sides to the bottom of the root pot 6.

The guide groove 15 provided in the root pot 6 can be used to specify the driving positions of both needle tips when driving the needle member 7 in this manner. Sometimes it is useful for guiding both needle points. Also, when the needle member 7 is driven into the bottom of the root pot 6 and penetrates this bottom, even if the penetrated needle tip is bent, the bottom space 13 provided below the bottom of the bottom pot 6 Used to house 11 ground without disturbing it.

A U-shaped staple may be used for the needle member 7. As shown in FIGS. 6 and 8, such a U-shaped needle member 7 is loaded from inside the launching guide 17, and is pneumatically, electrically or manually leveraged from behind with a hammer 18. Using a tool 19 that is driven into and driven through the driving guide 17, the driving can be performed.

The imitation turf 2 is formed of a rope-shaped turf material 23 as shown in FIG. This turf material 23 is formed by bundling and twisting a number of strings 24. In the example shown in the figure, a relatively small number of cords 24 are once twisted as a small-diameter turf material 25, and then a plurality of (three) turf materials 25 are twisted to form a large-diameter turf material 23. The number of strings 24 used has been increased. The cord 24 is made of a resin having a high flexibility and elasticity (shape resilience), and has a flat cross section or a circular shape, which is as thin as a real turf leaf. A single cord 24 may have a coiled twist.

Then, the turf raw material 23 is folded in half in the longitudinal direction, and the bent portion is pushed into the root pot 6 of the laying board 3, and in this state, the portion extending from the root pot 6 is Untwist the ropes of the turf material 23, and the strings 24 will come apart. That is, the portion pushed into the root pot 6 corresponds to the root 5 of the imitation turf 2, and the loose strings 24 correspond to the leaf-shaped pieces 4, respectively.

In order to manufacture the artificial turf 1 of the first embodiment, first, the turf raw material 23 is cut into an appropriate length, and then the middle part in the longitudinal direction is folded in half. And push it into each root pot 6 of board 3.

When the fold of the turf material 23 is pushed into the root pot 6 in this way, then, as shown in FIGS. 5 and 7, the turf material 23 extends in two directions from the root pot 6 with the two folds as a boundary. The crotch portion of the turf material 23 is separated, and the launching guide 17 of the tool 19 is brought into contact with an upper portion of the crotch portion of the two-fold portion as shown in FIG. Then, the position where the needle member 7 is punched out in the punching guide 17 and the guide grooves 15 on both sides provided in the root pot 6 are provided. To match.

At this time, a position where the needle member 7 penetrates and penetrates the bottom of the root pot 6 is predicted, and the needle bending die 30 is held opposite the punching guide 17 to the opposite side across the bottom. Let it happen. If the die 30 is fitted into the bottom space 13 provided at the bottom of the bottom of the root pot 6, the positioning between the spreader 3 and the die 30 is easy, and the misalignment can be prevented. is there.

In such a state, the bottom of the root pot 6 is strongly opposingly pressed (nipped) by the launching guide 17 and the die 30, the tool 19 is operated as it is, and the hammer 18 strikes the back side of the needle member 7. Then, the needle member 7 is driven out. As a result, the needle member 7 punched from the punching guide 17 pierces the needle tips on both sides into the bottom of the root pot 6 while straddling the upper crotch of the two-fold portion of the grass material 23, and from the state of FIG. 8 to the state of FIG. Penetrate to the state. Then, the needle tip of the needle member 7 is bent by the die 30 to be in a state of being folded back and prevented from falling off.

When the tool 19 is removed, the crotch portion of the turf raw material 23 extending from the root pot 6 in two directions as shown in FIG. 5 is fixed to the laying board 3 by the needle member 7. Then, the ropes 24 of the turf material 23 extending to these two sides are untied to separate the strings 24. After that, the length of the cord 24 is appropriately cut and aligned, so that the two-folded part fixed with the needle member 7 corresponds to the root 5 as the imitation turf 2, and the part separated above it is imitation This corresponds to foliate pieces 4 as turf 2. That is, the imitation turf 2 is now completed.

[0027] At this time, the driving state of the needle member 7 with respect to the artificial turf 2 indicates that the root portion 5 of the artificial turf 2 crosses the center of the plant. In addition, the spreader 3 straddles both sides of the opening of the root pot 6.

FIGS. 9 and 10 show a second embodiment of the artificial turf 1 according to the present invention, in which the shape of the laying board 3 is different. The laying board 3 used in the second embodiment is a row in which a root pot 6, recesses 33 formed by the formation of legs are arranged alternately and arranged, and a row of openings 34 for water permeability are arranged. Y are provided while being alternately repeated in a direction orthogonal to the column direction.

[0028] The root pot 6 has legs 11 protruding in a cup shape with a bottom on the lower surface side of the laying board 3, and the lower end surface of the leg 11 is a grounding surface as the laying board 3. The height of the cup shape The drainage space is secured on the underside of the spreader 3 in minutes. In the peripheral wall of the root pot 6, two pairs of guide grooves 35 extending in the depth direction on both sides (opposing positions) across the opening of the root pot 6 are provided. The guide groove 35 can be used to specify the driving positions of both needle tips when driving the needle member 7. However, unlike the guide member 15 described in the first embodiment, the guide groove 35 of the second embodiment does not guide the needle member 7 itself, but is used for driving the needle member 7 itself. Can be fitted without looseness to guide the insertion.

[0029] As described above, the concave portion 33 is formed by forming a leg protruding on the lower surface side of the laying board 3, but this leg is different from the leg 11 which also serves as the root pot 6. belongs to. In the example shown in the figure, the opening has an X-shape in plan view, but this may be any shape such as a circle or a square.

The imitation turf 2 and the needle member 7 are the same as those used in the first embodiment. Therefore, in the method of manufacturing the artificial turf 1 using the spreader 3 as described above, when driving the needle member 7, the driving guide 17 of the tool 19 is inserted into the guide groove 35 provided in the root pot 6, and the needle member is driven. The other points are substantially the same as those of the first embodiment except that the point 7 is driven.

By the way, the needle member 7 may be a U-shaped one instead of a U-shaped one. It is also possible to use a needle member 7 that does not penetrate the bottom of the root pot 6. In this case, it is not necessary to use the die 30, and if it is left as it is (the needle tip is not bent) Les ,.

When the folded part of the turf material 23 is pushed into the root pot 6 of the laying board 3, an adhesive is applied in advance to the turf material 23 side or the root pot 6, and the It is also possible to use an adhesive and the needle member 7 in combination for fixing, and this increases synergistically the bonding force between the two, which is more effective.

The imitation turf 2 is not limited to being formed in parallel with the planting on the laying board 3, but is provided with a leaf-shaped piece 4 and a root 5 from the beginning as shown in FIG. The ability to use the completed form of the stock is possible. In this case, the root 5 of the imitation turf 2 is formed by binding the root of the leaf-shaped piece 4 with a binding member 40 such as a wire or a fastening thread, or by using an adhesive, a molten resin or rubber. It can be formed by encapsulating and hardening.

[0032] In order to manufacture the artificial turf 1 using the imitation turf 2 completed from the beginning as described above, the root 5 of the imitation turf 2 is pushed into the root pot 6 of the laying board 3, and then the leaf-like pieces 4 are opened. At the upper part of the root 5, a portion which is approximately the center of the plant is exposed, and the forked needle member 7 is driven into the portion while the tool 19 is pushed up. As a result, the needle member 7 crosses the center of the root 5 in the imitation turf 2 and the needle member 7 straddles the spreader 3 on both sides of the opening of the root pot 6.

As shown in FIGS. 12 to 14, an opening 50 communicating with the guide groove 15 can be formed in advance at the bottom of the root pot 6. By forming such an opening 50, the driving of the needle member 7 and the subsequent bending of the needle tip can be performed easily, quickly and reliably.

The following procedure can also be adopted for a manufacturing method in which the folded turf material 23 is pressed into the root pot 6 of the spreader 3 to form the imitation turf 2. That is, as shown in FIG. 15, the turf raw material 23 is folded in half along the longitudinal direction, and the folded portion is pushed into the predetermined root pot 6 of the spreader 3 and then to the crotch portion of the folded portion. Drive in needle 7 (see arrow X). Then, one of the turf materials 23 extended from the root pot 6 is folded in two at a position where it reaches the adjacent root pot 6, and the folded portion is pushed into the root pot 6 (see arrow Y).

[0034] At this time, if the claw 52 for hooking the turf material 23 is kept at a predetermined height between adjacent root pots 6, the length of the turf material 23 can be easily set, and the subsequent work can be repeated. There is an advantage that the exact length can be unified. To set the length of the grass material 23, the spreader 3 may be stopped and the supply position of the grass material 23 may be moved between adjacent root pots 6; The supply position 23 may be stopped, and the spreader 3 may be moved in accordance with the pitch adjacent to the root pot 6.

When the folded part of the turf raw material 23 is pushed into the root pot 6 at the adjacent end in this way, the crotch part bordering the folded part is used as a needle 19 by using the tool 19 as described above. Type

Next, the turf material 23 bridged between the adjacent root pots 6 is placed at the intermediate portion. Disconnect (see arrow Z). Then, the rope of the turf material 23 extending from each root pot 6 is untwisted to separate the resin cord 24. According to this procedure, it is possible to precede the pushing of the turf material 23 into the root pot 6 and the driving of the needle member 7, and then perform the work of cutting the turf material 23 at a time. Therefore, work efficiency can be improved.

[0036] When such a procedure is adopted, a plurality of turf materials 23 are arranged side by side and are simultaneously directed to the spreader 3 and sent out. It is also possible to adopt a procedure that pushes into the rows at the same time. As a result, the working efficiency can be further improved.

The present invention is not limited to what has been described in each of the above embodiments, but can be further appropriately modified according to embodiments.

Industrial applicability

[0037] The artificial lawn of the present invention can be laid on a veranda, a rooftop, a road, a poolside, or the like.

Claims

The scope of the claims

[1] It has an imitation turf (2) and a laying board (3) for planting the imitation turf (2), and the imitation turf (2) has a root (5) The spreader (3) has a plurality of root pots (6) for individually pressing the roots (5) of the imitation turf (2), and the pusher (3) presses the root pots (6) of the spreader (3). The root of the imitation turf (2), the leaf (4) is separated from the upper part of the root (5), and it crosses the center of the plant and straddles both sides of the opening of the root pot (6). An artificial turf characterized in that a bifurcated needle member (7) having a needle tip is driven into it and the imitation turf (2) is fixed to the laying board (3). .

[2] Driving both needle tips of the needle member (7) into the laying board (3) at both side positions facing the peripheral wall of each root pot (6) across the opening of the root pot (6). The artificial turf according to claim 1, wherein a pair of guide grooves (15) (35) for specifying a position is formed.

[3] The needle member (7) according to claim 1 or 2, wherein both needle tips of the needle member (7) are folded back through the bottom of the root pot (6) of the spreader (3). Artificial turf.

[4] A plurality of root pots (6), into which the roots (5) can be pushed, and the imitation turf (2) having roots (5) for each plant in which a lump of lump (4) is collected are formed. The method of manufacturing artificial turf (1) by planting it on the laying board (3)

Push the root (5) of the imitation turf (2) into each root pot (6) of the laying board (3), and insert the leaf-shaped piece (4) into the upper part of the root (5). A method for producing artificial turf, characterized in that a bifurcated needle member (7) having two needle tips is driven in a state of crossing and straddling both sides of the opening of the root pot (6).

[5] A turf material (23), which is made by bundling a number of fine resin strings (24) and twisting them into a rope, is folded in half along its length, and a root pot ( 6) Push the folded part of the turf member (23) into the predetermined root pot (6) of the laying board (3) formed in plurals, and from the root part (6), A bifurcated needle member (7) having two needle tips in a state where the turf material (23) traverses the crotch portion extending in two hands and straddles both sides of the opening of the root pot (6) Characterized in that it includes an operation of untwisting the ropes of the turf material (23) extending from the root pot (6) and separating the resin strings (24). Manufacturing method. A rope pot-shaped turf material (23) is folded in half in the longitudinal direction by bundling a number of thin, resin-made strings (24). The fold of the turf member (23) is pushed into a predetermined root pot (6) of the plurality of laying boards (3), and the root fold (6) is separated from the turf material ( 23) into the crotch portion extending in two hands, striking the bifurcated needle member (7) having two needle tips while traversing the crotch portion and straddling both sides of the opening of the root pot (6) Root pot (6) force One of the extended turf material (23) is folded in two at a position where it reaches the adjacent root pot (6), and the folded part is pushed into the root pot (6). A bifurcated needle member (7) is driven into the crotch part bordering the fold as described above, and The turf material (23) bridged between the adjacent pots (6) is cut at the intermediate portion, and then the rope twists of the turf material (23) extending from each root pot (6) are separated. A method for producing an artificial turf, comprising an operation of unraveling and breaking a resin string (24).