JPS63157920A - Underlay block for turf - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention is applicable to lawn vegetation, particularly sports fields such as golf courses, lawn tennis courts, soccer fields, parks, amusement parks, etc. where natural grass is planted on the ground surface. The present invention relates to a lawn underlay block suitable for effectively protecting the lawn from damage caused by players, amusement park visitors, etc. stepping on it in gardens.

[Conventional technology]

For example, at the teeing ground of a golf course, it is well known that around 200 golfers per day stand one after another on an imaginary line of several meters connecting two tee marks and hit a golf ball. At that time, the blade tips of the grass are sheared due to the swinging motion of the club head and the abrasive action of the golf ball spikes, and in even more serious cases, the root of the grass can be cut off along with the surrounding soil by the strike of the club head. I end up getting beaten up. If the roots of a cut part of the lawn are healthy, it will be regenerated by sound, and if the part is covered with soil, runners from the surrounding lawn will spread and the damaged part will be repaired.

However, on the upper teeing grounds and gardens, etc., as mentioned above, the soil covering the roots and core of the grass is compacted by many golfers, amusement park visitors, etc.
The roots of the lawn may be deficient in oxygen, resulting in poor growth or root rot, which inhibits the regeneration of the lawn, resulting in an ugly and exposed teeing ground. Such an inconvenient phenomenon occurs not only on the teeing ground of a golf course, but also in places where many people walk frequently, such as cart paths, small paths, and other sports fields and gardens of amusement parks mentioned above.

Therefore, in order to prevent the above-mentioned damage to the lawn, conventionally,
As illustrated in FIG. 7(A), a large number of small rings (r +
By placing a plastic protective mat (P) integrally molded into a net shape with r Measures are taken to prevent damage such as raising the trench and compacting the soil.

[Problem to be solved] However, as is clear from Fig. 7, although the conventional lawn protection pine l-(P) has a space where the lawn can grow out,
Since the entire bottom surface of each annular body (r) comes into contact with the ground surface, the roots and runners of the grass grown within the annular bodies (r) move from the area of the annular body (r) to the horizontal area. The roots are forced to spread over a wider area and the soil on the lawn vegetation surface is compacted through the protective mantle (P). , the protective material (P)
There is no big difference from the case where the protective material is not installed, and the soil and roots are compacted by the weight applied through the protective material.

Therefore, the present invention provides a solution to the above-mentioned problems with conventional protective materials for lawns, which can effectively prevent soil compaction caused by trampling by many people, and which can support the smooth growth of grass roots and runners. The purpose is to provide an underlay block.

[Means to achieve the purpose]

In order to achieve the above object, the lawn underlayment block according to the present invention is characterized in that a plurality of pressure-resistant convex portions are continuously formed at appropriate intervals.

According to a preferred embodiment of the present invention, as shown in FIGS. 1 to 3, the plurality of pressure-resistant convex portions have a zigzag cross-sectional shape (the plurality of plate-like portions are formed vertically and horizontally). It is assembled and configured.

According to another preferred embodiment of the present invention, as shown in FIGS. 5 and 6, the plurality of pressure-resistant convex portions are independent convex bodies arranged vertically and horizontally or randomly at appropriate intervals and connected to each other. It consists of

In any of the above configurations, the plurality of pressure-resistant convex portions may be made of any material such as rubber or synthetic resin such as polyvinyl chloride, polyethylene, propylene or ethylene vinyl acetate, as well as wood, cement, etc. Uruga,
In order to buffer the trampling force of many people and effectively prevent pressure and cutting on grass roots and runners, as well as soil compaction, it has appropriate mechanical strength and elasticity, and is corrosion resistant. It is preferably constructed of a synthetic resin that has excellent properties, and is integrally molded using the synthetic resin.

[For production]

In order to use the lawn underlayment block according to the present invention, first, dig the ground in the area where the grass is to be planted to an appropriate depth, then lay the proposed block on the bottom, and then So, I went to work on it, put 1ζ grass on it, spread it thinly, and let it dry out. car2 F! J>Parrot>,,.

The roots and runners of the lawn planted as described above grow as it grows, but in this case, in the block of the present invention, each pressure-resistant convex part is formed continuously at appropriate intervals, Therefore, an appropriate space is formed between each of the convex parts and between the soil and the pressure plate material, so that a space is secured by the pressure plate material in which the roots and runners can freely spread laterally in the soil. Therefore, the lawn can grow smoothly. In addition, each pressure-resistant convex part resists the load applied to the ground surface by the walking of many people and prevents the roots and runners of the lawn from being cut, and also absorbs the load by its bending deformation and tightens the soil. Prevents clumping and effectively prevents oxygen deficiency in the soil and root rot.

In addition to the block of the present invention being buried in the soil, the above-mentioned known protection material may be placed on the lawn surface (see FIG. 4).

〔Example〕

Examples of the present invention will be described below, but the descriptions are merely illustrative and are not intended to limit the spirit of the present invention.

FIG. 1 is a partial perspective view of a lawn underlay block according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the block of FIG. 1 in use.

This example block (1) is made of polyethylene so as to have a zigzag cross-sectional shape, and is made of a plurality of pressure-resistant plates (2a, 2a,
2a,..., 2b, 2b,...).

Each pressure-resistant plate material (2a) and (2
b) refers to the convex portions (2a') and (2b') and the concave portions (2a') and (2b'), respectively.
2a'') and (2b''), but there are convex portions (2a', 2b') between each of the pressure plates (2a-2a) and (2b-2b) in the adjacent rows or rows. and the recesses (2a'', 2b'') are arranged so as to face each other.

To use this example block (1) with the above configuration, first,
As shown in Figure 2, the ground (G) of the area where grass (L) is to be planted.
), 1(S) is additionally sprinkled from the height h) of the block (1) and compacted appropriately.

The grass (L) takes root and the runners (R) begin to grow in the soil as shown in Figure 3, but at this time, this example block (
Since each pressure-resistant plate material (2a, 2b) of 1) is formed in a zigzag shape, it does not prevent the spread of the runner (R) at all. However, even if many people walk on the ground,
The runner (R) extending into the soil is connected to each pressure plate material (2a, 2b
) is protected by people's foot pressure,
Otherwise, the soil (S) is not cut, and compaction of the soil (S) is also prevented by the pressure-resistant plate materials (2a, 2b).

FIG. 4 is a sectional view showing the structure of another embodiment of lawn planting using the blocks of the present invention.

In this example, the block (1) of the present invention is buried underground as in the previous example, and a plastic protective material (P) similar to the known one shown in Fig. 7 is placed on the top surface of the planting. placed. With this configuration, the block (1) of the present invention buried underground protects the runner (R) extending into the soil from being compressed or cut by human tread pressure, and also prevents compaction of the soil (S). In addition, the protective material (P) can also prevent the tips of lawn leaves from being sheared and the root portion from being dug up.

FIG. 5 is a partial perspective view of a lawn underlayment block according to yet another embodiment of the present invention. This example block (1) includes a plurality of pressure-resistant convex members (4, 4, . . . ) having a hollow spindle shape.
) are arranged at appropriate intervals on the substrate (3) formed in a lattice shape and are formed integrally with the substrate (3), which is different from the previous example, but the grass is planted on the surface. 5 is a partial perspective view similar to the block shown in FIG.
4, . . ) are formed in the shape of a brush, but are similar to the embodiment shown in FIG.

In addition, in each of the above embodiments, pressure plate materials (2a, 2b)
Alternatively, the pressure-resistant convex members (4, 4, . . . ) are regularly arranged vertically and horizontally, but the invention is not limited to this. ) may be placed completely randomly.

〔Effect of the invention〕

As explained above, the present invention has the following advantages: - By configuring a lawn underlay block to include a plurality of pressure-resistant convex portions continuously formed at appropriate intervals, soil compaction caused by trampling by a large number of people is prevented. In addition to being able to effectively prevent grass roots and runners from growing properly, the blocks are buried in the soil, so they are completely hidden from people's eyes, do not damage the original appearance of the lawn, and are protected from sunlight. To provide a lawn underlay block that is completely unaffected by light irradiation and weather conditions, has double durability, and does not hinder golf playing or walking at all.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of a lawn underlay block according to an embodiment of the present invention, Fig. 2 is a sectional view showing the usage state of the block in Fig. 1, and Fig. 3 is a partial perspective view showing the state of grass growth. figure,
FIG. 4 is a partial sectional view showing a lawn vegetation structure according to another embodiment, FIG. 5 is a partial perspective view of a lawn underlay block according to another embodiment, and FIG. 6 is a lawn underlay block according to yet another embodiment. FIG. 7 is a partial perspective view (A) showing an example of a conventional lawn protection material, and a partial perspective view (B) showing the state in which the protection material is used. The meaning of the symbols in each figure is as follows; □1: Underlay block for turf vegetation, 2a, 2b: Pressure-resistant board material, 2a'+2b': Convex part, 2a", 2b": Concave part, 3: Substrate, 4 : Pressure-resistant convex member, G: Ground, L: Grass, R: Runner, S: Eye, P: Protective mat, r: Small annular body. Patent Applicant Sun Green Shoji Co., Ltd. Sugi Naka-O Figure 2 Figure 4 Figure 7 (A') Figure 7 (B) Patent application filed on January 5, 1988 and December 18, 1988 2. Name of the invention: Lawn underlay block 3. Relationship with the Nagisa case to be amended Patent applicant address: 2-15-22 Sumiyoshi Honmachi, Higashinada-ku, Kobe Name: Sungreen Shoji Co., Ltd. Representative: Takashi Matsushima (and 1 other person) Name) 4. Address of the agent: 1-32-12 Higashi Mikuni, Yodoyo-ku, Osaka City Voluntarily) 6. Number of inventions increased by amendment 07. Subject of amendment 0) "Detailed description of the invention" in the specification ``Polyethylene'' was changed to ``Polyethylene'' in the section ``Vinyl''.

Claims (4)

[Claims] (1) A lawn underlay block characterized in that a plurality of pressure-resistant convex portions are continuously formed at appropriate intervals. (2) The lawn underlay block according to claim 1, which comprises a plurality of plate-like bodies each having a plurality of pressure-resistant convex portions having a zigzag cross-sectional shape, assembled vertically and horizontally. (3) The lawn underlay block according to claim 1, wherein the plurality of pressure-resistant convex portions are formed by connecting independent convex bodies at appropriate intervals. (4) The lawn underlay block according to any one of claims 1 to 3, wherein the plurality of pressure-resistant convex portions are made of rubber or synthetic resin.