JPH0349524B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a portable lawn pine.

[Background technology] Grass is usually planted and grown on the ground, but when the grass is trampled, the roots of the grass, which grow close to the ground, receive a strong force from the ground, causing damage. Particularly on a golf course, for example, when stepped on by the spikes of golf shoes, the ground is dug up and the roots of the lawn tend to die, which tends to stop the growth of the lawn. In such a case, replacing the lawn would require a great deal of effort and time. Therefore, the applicant is
Japanese Patent Publication No. 59-9131 provides a pine with grass that solves this problem. That is, as shown in Fig. 3, in this case, the grass 2 is planted on a fiber mat 3 in which fiber pieces 1, 1, etc. are aggregated and bonded. The fiber pine 3, which is an aggregate of 1..., has elasticity and will not damage the roots of the lawn even when treading pressure is applied, and the fiber pine 3 can be dug up by spikes like the ground. This can effectively prevent root blight from occurring in the lawn. Moreover, in this product, the lawn is integrated with the fiber mat 3, and the work of laying the lawn can be done extremely easily by simply laying down the fiber mat 3. Although it has various advantages as described above, it has had problems when replacing the lawn. That is, in this case, the roots of the grass 2 planted on the surface of the fiber pine 3 penetrate through the fiber pine 3 which is an aggregate of fiber pieces 1, and the grass 2 is planted on the surface of the fiber pine 3.
In this way, the roots that come out on the back side of the fiber pine 3 will penetrate into the ground, and eventually the roots of the lawn 2 will grow underground. When the fiber pine 3 is removed from the ground in order to replace the lawn, the roots of the lawn 2 will be cut between the part inside the fiber pine 3 and the part underground. A problem arises in that the grass 2 that has been exposed to the grass becomes weak and easily withers.

[Purpose of the Invention] The present invention has been made in view of the above points, and it not only prevents the roots of grass from being damaged even when stepped on, but also allows the roots of the grass to be removed from the ground without being cut. The object of the present invention is to provide a lawn pine that can be easily peeled off and replaced with a lawn.

[Disclosure of the Invention] The lawn pine according to the present invention includes a fiber pine 3 which is formed by aggregating the fiber pieces 1, 1... and has a lawn 2 provided on its surface, and a turf pine provided on the back side of the fiber pine 3. The rubber mat 5 is formed by collecting rubber lumps 4, 4, etc. obtained by crushing waste tires and bonding them with adhesive, and there is no ventilation/communication between the rubber lumps 4. It is characterized by the formation of gaps 8 through which water can flow and the roots of the grass can enter, and the roots of the grass 2 provided on the fiber pine 3 by the rubber pine 5 can extend into the ground. The present invention will be described below in detail with reference to Examples.

The fiber mat 3 is formed by gathering together a large number of fiber pieces 1, 1... in an entangled state and bonding them with an adhesive. However, it is preferable to use materials recycled from scrap tires from automobiles, waste fiber scraps from textile factories, etc. because they can save resources by recycling waste and are available at low cost. It's even more desirable. In this case, in order to obtain fiber pieces 1 from a waste tire, the tire cord for reinforcing the tire contained in the waste tire is separated from the scrap tire pieces obtained by cutting and crushing the waste tire. The fiber waste from this tire cord is collected as fiber pieces 1. Here, when separating the fiber pieces 1 from the scrap tire pieces, some rubber pieces 7, 7, etc. will also be mixed in, but the elasticity of the fiber mat 3 is improved by mixing an appropriate amount of rubber pieces 7. In addition, when stepping pressure is applied to the fiber mat 3, the fiber pieces 1, 1
This is preferable because it can prevent the... from being crushed. In manufacturing the fiber mat 3 from such fiber pieces 1, 1..., the fiber pieces 1, 1...
As the adhesive for bonding..., it is preferable to use a urethane resin, especially a moisture-curable one-component urethane resin. Since the one-component urethane resin has elasticity, it does not impair the elasticity of the fiber mat 3, which is an aggregate of fiber pieces 1, and can even improve the elasticity, compared to two-component urethane resin. It is easy to handle and can be cured simply by supplying moisture.
After sprinkling a moisture-curing one-component urethane resin solution onto the fiber pieces 1, 1... and kneading the fiber pieces 1, 1 until they are wet with the one-component urethane resin, this kneaded material is coated on the inner surface with a release layer. The kneaded material is placed in a mold with water sprinkled on it to supply moisture. The kneaded material is then pressurized and cured for approximately 24 hours to foam and harden the one-component urethane resin, forming a fiber mat 3 in which the fiber pieces 1, 1... are bonded with the one-component urethane resin. , the molded fiber mat 3 is released from the mold. The fiber mat 3 is formed by intertwining and bonding the fiber pieces 1, 1, and is porous due to the voids between the fiber pieces 1, 1. In addition, when providing a mold release layer on the inner surface of the mold, it is sufficient to apply a mold release agent to the inner surface of the mold or to lay down a film with good mold release properties such as polyethylene film. In the case of a film, the fiber mat 3 can be easily released from the mold together with the film by lifting the portion of the film that projects from the mold. Furthermore, if the kneaded mixture of fiber pieces 1, 1... and one-component urethane resin liquid is placed in a mold, moisture is supplied, and then the above treatment is performed while heating when pressurizing, fiber mat 3 can be mass-produced. It is something that can be done.

The rubber mat 5 is formed by assembling a large number of rubber lumps 4, 4, etc. with a diameter of about 2 to 3 mm and bonding them together with an adhesive.The rubber lump 4 is made by crushing the above-mentioned waste tires. There is no problem even if the rubber mass 4 contains some fiber waste from the tire cord. As the adhesive for bonding the rubber mass 4, it is preferable to use a one-component urethane resin as described above. Furthermore, the production of the rubber mat 5 from the rubber lumps 4, 4, . . . can be carried out in the same manner as in the case of the fiber mat 3. That is, after sprinkling a moisture-curable one-component urethane resin liquid onto the rubber lumps 4, 4, kneading the rubber lumps 4, 4 until they are wetted with the one-component urethane resin, this kneaded material is coated with a release layer on the inner surface. The kneaded material is placed in a mold with water sprinkled on it to supply moisture. Then, after pressurizing the kneaded material, the one-component urethane resin is cured for about 24 hours to foam and harden, and a rubber mat 5 in which the rubber lumps 4, 4... are bonded with the one-component urethane resin is formed. The molded rubber mat 5 is released from the mold. This rubber mat 5 is formed by combining rubber lumps 4, 4..., and minute gaps 8, 8... are formed between each rubber lump 4, 4. These gaps 8, 8, . . . ensure ventilation and water passage on the front and back sides of the rubber mat 5.

For example, the length and width of the fiber mat 3 are 75 cm x
The rubber mat 5 is formed to have the same length and width as the fiber mat 3 and a thickness of approximately 10 mm, and is used by stacking the fiber mat 3 on top of the rubber mat 5. On top of the fiber mat 3, a top layer such as sand or soil is spread to a thickness of about 2 cm to form an upper layer 10. Then, on the surface of the fiber pine 3, there is grass 2 such as Korai grass or Western grass.
However, when planting Lawn 2, seeds of Lawn 2 are sown on the surface of fiber pine 3, and after they germinate, liquid fertilizer is injected into the fiber pine 3 to grow Lawn 2. It is. At this time, it is best to inject the fertilizer after the lawn has germinated; if it is injected before the germination, the lawn 2 may be difficult to germinate. Fiber pine 3 is porous, so it retains liquid fertilizer well, and grass 2
is fast growing. In addition, lawn 2
The seeds are used as fiber pieces 1 and 1 when manufacturing fiber matte 3.
It may be mixed in with... In this case, the roots of the grass 2 are spread deeply into the fiber pine 3, so that the bond between the grass 2 and the fiber pine 3 is strengthened. Furthermore, a pre-grown lawn 2 may be pasted onto the surface of the fiber pine 3, and the roots of this lawn 2 may be allowed to grow into the fiber pine 3.

In this way, a grass pine A on which grass 2 is planted as shown in FIG. 1 can be obtained. The grass 2 planted on the surface of the fiber pine 3 has its roots 10
As shown in FIG. 2, the fibers grow and stretch within the fiber mat 3 between the fiber pieces 1 and 1. At this time,
Some of the roots 10 enter the gaps 8 between the rubber masses 4 and extend into the rubber mat 5, but most of the roots 10 are prevented from extending to the back side of the fiber mat 3 by the rubber mat 5. Therefore, the roots 10 of the lawn 2 are prevented from extending underground and taking root underground. Further, ventilation and water flow in the lawn pine A are ensured by the pores of the fiber pine 3 and the gaps 8 of the rubber pine 5.

Lawn pine A obtained as above is Lawn 2
Since the grass is planted there, you can spread the lawn 2 anywhere you want by simply laying it out on the ground. When removing the lawn pine A from the ground in order to replace the lawn 2, since the roots 10 of the lawn 2 do not extend into the ground as described above,
This prevents the roots 10 of the lawn 2 from being cut between the lawn pine A and the ground.
Of course, there are some roots 10 extending underground from the gaps 8 of the rubber pine 5, but they are few and these roots 1
Even if 0 is cut off, Lawn 2 will not be weakened. In addition, regarding the lawn pine A that has been peeled off from the ground in this way, a part of the roots 10 of the lawn 2 planted on the fiber pine 3 are located in the gap 8 of the rubber lump 4 of the rubber pine 5.
Since the fiber mat 3 and the rubber mat 5 are integrated by the roots 10, the fiber mat 3 and the rubber mat 5 can be freely carried in the integrated state. .

[Effects of the Invention] As described above, the lawn pine according to the present invention includes a fiber pine that is formed by aggregating fiber pieces and has a lawn on its surface, so that the lawn is integrated into the fiber pine. The lawn pine can be easily transported along with the lawn, and the lawn can be spread anywhere by simply laying the lawn pine at the desired location.Furthermore, the fiber pine is made of aggregated bonds of fiber pieces. The grass is elastic and less likely to damage the lawn even when pressure is applied to it, and the roots of the grass are less likely to be dug up like dirt by spikes. This allows grass to grow smoothly even in areas susceptible to the effects of golf shoes, such as the teeing ground of a golf course.
In addition, since the rubber pine is provided on the back side of the fiber pine and is formed by collectively bonding rubber lumps, the roots of the grass provided in the fiber pine can extend inside the fiber pine, but many of the roots are not fibers. The rubber pine prevents the grass roots from penetrating into the back side of the pine, and prevents the roots of the grass from penetrating into the ground where the grass pine is laid. There is no fear that the roots of the lawn will be cut even if the grass is removed from the ground, and the work of replacing the lawn can be easily done without weakening the lawn. Furthermore, rubber pine is formed by collectively bonding rubber lumps, and gaps are formed between the rubber lumps to allow ventilation and water flow, and the roots of the grass can enter. Even though the rubber pine is designed to prevent the rubber pine from sticking and growing, it is possible to ensure ventilation and water flow between the rubber clumps, allowing the grass installed on the fiber pine to grow well. At the same time, some of the roots of the grass of the fiber pine enter the gaps between the rubber clumps of the rubber pine, and the roots of this grass can integrate the fiber pine and the rubber pine, and the fiber pine and the rubber pine are separated. This allows the lawn pine to be carried freely without having to do anything. In addition, since rubber mats are formed by collectively bonding rubber lumps obtained by crushing waste tires, the rubber lumps that are the material for rubber mats are made from waste tires by crushing them. Not only does it have the advantage of saving resources by recycling waste and can be obtained at a low price, but the rubber mass also contains some fiber waste from waste tires, making it difficult to use as an adhesive. When the rubber pieces are bonded together, this fiber waste exerts an anchoring effect that bites into the adhesive, increasing the bonding force between the rubber pieces due to the adhesive, and creating a gap between the rubber pieces. Despite this, it is possible to firmly bond the rubber lumps and increase the strength of the rubber mat.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention;
FIG. 2 is a sectional view of the same as above, and FIG. 3 is a partially cutaway perspective view of the conventional example. 1 is a fiber piece, 2 is a lawn, 3 is a fiber mat, 4 is a rubber lump, 5 is a rubber mat, and 8 is a gap.

Claims (1)

[Scope of Claims] 1. Comprised of a fiber pine formed by gathering fiber pieces and having a lawn on its surface, and a rubber pine disposed on the back side of the fiber pine. It is characterized in that it is formed by aggregating rubber lumps obtained by crushing and bonding them with adhesive, and that gaps are formed between the rubber lumps to allow ventilation and water passage, and for the roots of the grass to enter. Lawn pine. 2. The lawn pine according to claim 1, wherein the fiber pieces of the fiber pine are fiber waste obtained by crushing waste tires.