JPH02268621A - Establishment of elastic turf or the like - Google Patents

Abstract

PURPOSE:To establish elastic turf, etc., by providing an elastic member made of a fiber forming material or foamed plastic with a fertilizer, etc., to give a cushioning material and adding the cushioning material to a planting base such as lawn planting base. CONSTITUTION:A fiber forming material such as rock wool or foamed plastic is used to form an elastic member and a fertilizer and, if necessary, germicide, insecticide, etc., are maintained in the elastic member to give a cushioning material 2 for blending. Then the cushioning material is blended with a planting base such as cultivating soil 1 of lawn planting base to give elastic turf suitable for lawn of kindergarten, amusement park, elementary school or for landing point, falling ground, etc., of various kinds of sports.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is designed to prevent injuries caused by the cushioning force of the grass even if a person falls or falls during exercise or leisure activities such as skydiving, hang gliding, or grass skiing. The present invention relates to a method of creating a grass field, etc., which has elasticity so that it can easily fall or land on the ground.

(Conventional technology) In sports such as skydiving and hang gliding, the landing point is set on grass or other vegetation because a soft landing is the first condition for protecting human life. However, since this type of landing site has traditionally used natural grass or the like, the surface is hard and can often cause injury if one does not land with great care. One way to solve these problems is to lay down mats, etc., but with this method, there is a limit to the size of the mats, and the mats must be laid and stored each time. It is not used because it forms a step that rises above the ground, which can cause injuries at the crotch area.

In addition, when it comes to grass skiing, if the grass is hard, the skis will not glide smoothly, which can lead to injuries when falling, so grass with a suitable amount of elasticity is required.

(Problems to be Solved) The present invention is intended to solve the above-mentioned conventional problems,
It is an object of the present invention to provide a method for creating a lawn, etc., which can make the soil base, such as a lawn base, elastic without inhibiting the growth of above-ground plants such as grass.

(Means and Effects for Solving the Problems) The method for creating a resilient lawn or the like of the present invention is a cushioning material made by holding fertilizer, etc. in an elastic member made of a fiber molded body such as rock wool or foamed plastic. The method is characterized in that the material is mixed into a vegetation base such as a lawn vegetation base.

As the elastic member for the cushioning material used in the present invention, a plastic foam or a molded body made of fibers such as rock wool or synthetic fibers that have appropriate elasticity and restoring force and are resistant to decay and deterioration are used. be done.

Examples of the plastic foam include expanded polystyrene in the form of particles or rods of appropriate size, or pieces of plastic sponge. As the plastic sponge, foams such as polyurethane, urea resin, and polyethylene can be used. These foams do not necessarily have to be soft materials (they may be semi-rigid or hard materials depending on the material).These foams can be adjusted to an appropriate size depending on the elasticity of the turf to be obtained. For example, granules with a particle size of 0.5 to 2 cm, each side of which is 0.5 to 2 cm.
2cm prismatic body (section), diameter approximately 0.7cm, length 5c
It is used as a rod-shaped body of about m.

The fiber molded body for elastic members may be simply rolled fibers, or it may be formed into a mat shape and cut into an appropriate size.The size is approximately the same as that of plastic foam. be. As the fiber, in addition to rock wool, fibers such as polyester, polypropylene, and polyethylene can be used.

The elastic member holds fertilizer and, if necessary, a fungicide, an insecticide, etc., to serve as a buffer material for mixing. To retain fertilizer, etc., it is preferable to absorb or fix the fertilizer by impregnating the pores of the elastic member with an aqueous solution or a solvent solution of the fertilizer. In the case of a material impregnated with an aqueous solution, it may be mixed into the soil as is without drying.In the case of a plastic foam, fertilizer etc. may be added to the foam at the time of manufacture. If you use a foam such as urea resin foam that decomposes over a long period of time and becomes fertilizer, there will be no need to remove the previous cushioning material when reinstalling after a certain period of time. In the present invention, the buffering material is easily applied by mixing it with the tilled soil source at a ratio of 10 to 5% by volume with the topsoil of the area to be made elastic, such as a lawn, with a thickness of 10 to 30 cm. Create a vegetation base. The amount of buffering material mixed is preferably increased for clayey soils and decreased for sandy soils, but it is of course not limited to the above ratio and may be further mixed depending on the purpose.

The thickness (depth) of the soil into which the buffer material is mixed should be selected depending on the soil properties, for example, for clay soil it is good to have a depth of about 30cm, for loamy soil it is good to have a depth of about 20cm, and for sandy soil it is good to have a depth of about Locm. The soil layer mixed with the buffer material does not necessarily have to be on the ground surface, and may be located 10 to 50 cm below the ground surface as long as a buffering effect can be obtained.

A lawn, etc. is created by planting or sowing grass, etc. on the vegetation base created as described above. The grass may be any grass that is suitable for the region; for example, in warm regions, grass grass is sown, and in cold regions, cold region grass is sown to form a resilient lawn. Note that other grasses other than turfgrass may be grown.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 shows a schematic cross-sectional view of a lawn according to the present invention.
2 indicates cultivated soil, 2 indicates a buffer material, 3 indicates a buffer layer mixed with buffer material 2, and 4 indicates turfgrass.

A piece of land with a black soil layer thickness of approximately 30 cm, a brown soil layer thickness of 50 cm, and a blue clay layer underneath was selected as the lawn to be buffered, and a buffer material was mixed into the black soil layer of this land at a ratio of approximately 30 volumes and 1%. and created a vegetation base.

The cushioning material used was a rod-shaped foamed polystyrene rod with a diameter of about 0.7e+n and a length of about 5cn+ that absorbed and supported inorganic fertilizers and fungicides.

Noshiba was spread on the obtained vegetation base, and the plants were made to grow after being treated with a grain. Grass growth was good and well established. The turf created in this way has more than 1.5 times the elasticity of turf that is not mixed with cushioning material, and can be used as a landing point for sports such as skydiving and hang gliding, providing a comfortable landing feel. And the spelling effect was thickened.

(Effects of the Invention) As explained above, in the past, only the cushioning force was provided by thick thatch and mats derived from turf grass growing on the ground surface, but according to the present invention, in addition to this cushioning force, Since the buffering properties and elasticity of the grass can be adjusted arbitrarily by adjusting the amount of buffering material mixed in, it is possible to obtain a vegetation base that can be used as lawns for amusement parks, kindergartens, and elementary schools, as well as landing and tumbling spots for various sports. .

[Brief explanation of drawings]

The figure is a schematic cross-sectional view of a lawn for explaining one embodiment of the present invention. In the diagram 1... Cultivated soil 2... Buffer material 3... Buffer layer 4... Lawn grass

Claims (1)

[Claims] A cushioning material made by holding fertilizer, etc. in an elastic member made of a fiber molded body such as rock wool or foamed plastic, etc.
A method for creating a resilient lawn, etc., characterized by mixing it into a vegetation base such as a lawn vegetation base.