JP2788776B2 - Artificial turf with sand - Google Patents

Description

The present invention relates to an artificial turf with sand in grass, which is suitable as a ground for various sports, for example.

(B) Conventional technology Conventionally, artificial turf with sand has been configured by putting sand whose particle size has been sorted to a certain size in a lawn formed by cut pile.

(C) Problems to be Solved by the Invention When the artificial turf containing sand as described above is used as a ground for a sports competition, the elasticity of the artificial turf is lost in a short period of time due to heavy pressure and severe use of sand. In addition, there is a problem that the sand hardens quickly, the period of elastic good condition is very short, and the sand is easily washed away by rain or water spray, so that the repair work is very troublesome.

Also, when sand is put into the grass of the artificial turf formed by the cut pile, if the size of the sand particles is not a predetermined size and uniform, the sand cannot be surely entered into the grass, so that the sand has a predetermined uniform size. Therefore, there is a problem that it is necessary to perform processing to a large size, and this processing operation requires time and trouble.

The present invention can maintain a resilient and good ground condition for a long period of time, and can prevent sand from flowing due to rainwater, and can easily be used even if there is some variation in the size of sand particles. The purpose of the present invention is to provide an artificial turf with sand that can be sanded into the grass.

(D) Means for Solving the Problems The present invention relates to an artificial turf containing sand, in which a pile made of a synthetic resin is planted on a base cloth, and sand is filled in the grass formed by the pile. It is characterized by being an artificial turf containing sand, in which a pile is formed by a suitable distribution of a cut pile and a loop pile.

(E) Operation In the artificial turf with sand of the present invention, the loop pile planted in an elliptical shape supports the force from above the sand with a strong elastic recovery force, and also applies the force from the left and right directions to the upright position of the loop pile. The two piles oscillate simultaneously in the sand, preventing the sand from sticking together and preventing the sand from hardening.

At the same time, by densely planting the upright cut pile, the sand that is pressed to move in the left-right direction is stopped, and the flow of the sand is prevented.

(F) Effects of the Invention As described above, according to the present invention, a loop pile exhibiting tenacity of elasticity against the pressing in the left-right direction and the up-down direction is planted, so that the pile pile is rich in elastic recovery, and the pressure of sand and severeness It has high resistance to reusable use and can maintain a good condition with elasticity for a long period of time.

In addition, the loop pipe has an elliptical shape and forms a space, so that sand can enter well, so even if there is some variation in the size of the sand particles, sand can be easily introduced into the grass. Can be filled, sand filling work can be done in a short time,
Moreover, it is simplified.

In addition, the cut pile is prevented from tilting by the tenacious elasticity in the direction of action of the loop pile, so that the cut pile can be maintained in an upright posture, and the cut pile reliably prevents the flow of sand due to rain and water sprinkling. can do.

(G) Embodiment One embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show an artificial turf containing sand in which a pile made of a synthetic resin is planted on a base cloth. In FIGS. 1 and 2, the artificial turf 1 containing sand is formed on a base cloth 2 woven with warps and wefts. The tufting is performed on the cut pile 3 arranged in a turtle pattern and the loop pile 4 arranged in the space of the turtle pattern.
An artificial turf 6 is formed by applying a synthetic resin 5 as a backing agent to the back surface of the turret, and sand 7 is filled in the artificial turf 6.

To describe this production in detail, first, a cut pile 3 made of an appropriate number of flat yarns is arranged in a turtle pattern as described above, and further, a loop pile 4 made of flat yarn is arranged in the space of the turtle pattern, Tuft the base cloth 2.

Next, a synthetic resin 5 as a backing agent is applied to the back surface of the base fabric 2 which has been piled down (below the pile side), and each pile 3 is lightly sandwiched between the warp and the weft from the state immediately after the tuft. The pile is hardened using capillary action so that 4 and 4 do not fall apart.

In this case, each of the piles 3 and 4 preferably has a denier of 5,000 to 15,000.

Further, for the piles 3 and 4, a split yarn (spread yarn) formed by forming a large number of vertical cuts in a wide flat yarn can also be used.

In the artificial turf 6 configured in this manner, the upright loop pile 4 has large elasticity and resilience.
As shown in the figure, when the loop pile 4 is pressed from above, the loop pile 4 has a strong elastic recovery force using a unique arch-like shape.

Further, when the cut pile 3 falls down due to the pressing force in the left-right direction, as shown in FIG. 4, the loop pile 4 having two arch-shaped upper parts supported by the cut pile 3 is formed.
The loop pile 4
The loop pile 4 next to absorbs the pressing force and tries to push back the tilting cut pile 3 instead.

Therefore, the artificial turf 6 which is rich in elasticity without setting the turf can be obtained.

As shown in FIG. 1, the artificial grass 6 thus formed is filled with sand 7 so as to stabilize the sand at such a position as to cover the loop pile 4.

In the artificial turf 1 containing sand filled with the sand 7 in this manner,
The upright cut pile 3 repels or absorbs the sand 7 which is stepped or pressed obliquely and is likely to move in the left-right direction by the shape retaining function of the loop pile 4 to move the sand 7. To block.

On the other hand, the loop pile 4 having tenacious elasticity in the vertical direction and the horizontal direction supports the force of the sand 7 being pressed from above by being stepped on, by bending the two legs, and supporting the force from the horizontal direction. Thus, the two legs standing up simultaneously swing in the sand 7 to prevent the sands 7 from adhering to each other and prevent the sands 7 from hardening.

Therefore, it is possible to obtain the artificial turf 1 containing sand which can provide a good condition having an appropriate elasticity of the sandy ground for a long period of time regardless of the force applied.

In the above-described embodiment, the cut pile 3 is planted so as to draw a turtle pattern. However, the present invention is not limited to this. For example, as shown in FIG. 5, the cut pile 3 is planted in a lattice shape having a rectangular pattern. It may be provided and formed.

In the first embodiment shown first, the piles 3 and 4 are hardened using the synthetic resin 5 as a backing agent so that the piles 3 and 4 do not fall apart. A composite split yarn or a monofilament having a different thermal melting point may be mixed and twisted and heat-fused by applying heat. The present invention is not limited to only the configuration of the embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a plan view showing an artificial turf containing sand without sand, FIG. 2 is a sectional view of the artificial turf containing sand, and FIG. FIG. 4 is a side view showing an operation state, and FIG. 5 is a plan view showing another embodiment. 1. Artificial grass with sand, 2. Base cloth 3. Cut pile, 4. Loop pile 6. Artificial grass, 7. Sand

Claims (1)

(57) [Claims] 1. An artificial turf containing sand, in which a pile made of a synthetic resin is planted in a base cloth and sand is filled in grasses formed by the pile, wherein the pile is adapted to a cut pile and a loop pile. Artificial turf with sand formed by distribution.