JPH0245725B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an artificial lawn imitating a natural lawn and an artificial lawn structure constituting it.

(Prior art) Artificial lawns laid on golf courses, stadiums, gardens, etc. are disclosed in Japanese Patent Publication No. 53-22379 (see Figure 10).
As disclosed in
Artificial lawn structures 4 (hereinafter simply referred to as structures) formed by planting grass blades 3 made of nylon or the like on the top of the lawn are arranged on a vertical wall, arranged in parallel in large numbers, and spaced apart by spacers 21. A bolt 5 is passed through and fixed while holding the elastic band 2, and sand 7 is buried between the elastic bands 2.

(Problem to be Solved by the Invention) In the conventional artificial lawn structure 4, the base portion 10 of the lawn leaf piece 3 protrudes from the upper surface of the elastic band 2,
Since there is no protective material around it, when stepped on or hit with a club sole, the load acts on the main body 10 to cause it to bend.
Cracks may occur in the elastic band 2 and the adhesion of the grass blades 3 may peel off.

Furthermore, when a conventional artificial lawn is used as a teeing ground of a golf course, the sand 7 between the elastic bands 2 may be reduced by hitting from the club sole or by wind and rain, making it difficult to tee up.

(Means for Solving the Problems) In view of these conventional problems, the present invention provides an integral molding method in which an elastic protection portion 11 is integrally formed from the vertical wall-shaped elastic band 2 to the side of the base portion 10 of the lawn leaf piece 3. Protrudes upward to protect against stepping and hitting with the sole of the club.
The purpose of the present invention is to provide an artificial lawn structure that protects the trunk part 10 of the lawn leaf piece 3 and prevents it from peeling off from the elastic band 2.

In addition, in view of the problems of conventional artificial lawns, the present invention integrates an elastic protection part 11 from the upper part A of the vertical wall-shaped elastic band 2 of the artificial lawn structure 4 to the side of the base part 10 of the lawn leaf piece 3. By making the tee 16 protrude upward by molding, and by forming a protruding tee holding part 17 that holds the tee 16 together with the adjacent elastic band 2 laterally from the side surface of the elastic band 2, and by arranging a large number of these in parallel. To provide an artificial lawn that protects the grass blades 3 from being hit by a club, ensures tee-up, and can be optimally used as a teeing ground.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In the first embodiment shown in FIGS. 1 to 3, reference numeral 1 denotes an artificial lawn mainly used as a playing field, and on the top of an elastic band 2 arranged in the form of a vertical wall, grass blades 3 are placed along the longitudinal direction of the band. A large number of artificial lawn structures 4 formed by planting are arranged in parallel in a recess in the ground and fixed via bolts 5 and nuts 6, and sand 7 is buried between the structures 4. has been done.

In the structure 4, the elastic band 2 is made of a material such as rubber or synthetic resin that has corrosion resistance and appropriate elasticity and rigidity,
The grass blades 3 are made of a flexible synthetic resin material with abrasion resistance and corrosion resistance, such as nylon, and are formed by twisting a thin strip (flat yarn). A monofilament is also mixed in to improve the napping property, and one end of the lawn leaf piece 3 is connected to the elastic band 2 and planted.

The grass leaf piece 3 protrudes upward from the center in the thickness direction of the upper surface of the elastic band 2, and the base portion 10 at the lowest position of the protruding portion is protected by an elastic protection portion 11 on its side. This elastic protection part 11 is an elastic band 2
It is integrally molded and protrudes upward from the elastic band 2, and is formed at a required height over the entire length of the elastic band 2 in the longitudinal direction so as to overlap with the main body 10 from the upper part of the elastic band 2. The elastic protection portion 11 directly receives and buffers the hitting force or stepping force of the club sole 12, thereby reducing the influence of hitting or stepping on the base portion 10.

The elastic protection part 11 is the base part 10 of the lawn leaf piece 3.
It is located on one left and right side with a gap in between, and is formed over approximately the entire length in the longitudinal direction of the band, and the striking force and stepping force are supported by the upper end of the elastic protection part 11, and the middle part of the grass blade 3 Even if the grass blade 3 touches the elastic protection part 11 in the middle, it is bent flexibly with a large radius, and the main part 10 is not affected. 10
The elastic band 2 will not be bent at right angles.
The upper drainage and soil removal properties are also maintained well.

The elastic band 2 is divided into upper and lower parts, and the upper part A
is thick and the lower part B is thin, and if the upper and lower parts A and B are made of the same material, the amount of elastic deformation in the vertical direction is smaller in the thicker upper part A than in the thinner lower part B; It exhibits high elasticity and can sufficiently absorb and alleviate the hitting force and trampling force applied to the upper part A, while also reducing the amount of material.The upper part A exhibits low elasticity and is less deformed, increasing the support strength of the grass blades 3. , to reduce cracks in the elastic band 2.

On the left and right side surfaces of the elastic band 2, space setting portions 13 are formed outwardly projecting at regular intervals in the longitudinal direction of the band, and when the space setting portions 13 of adjacent elastic bands 2 come into contact with each other, the structure Set the placement interval of 4. Bolt through holes 14 are formed in all or at a desired number of interval setting portions 13, and the bolts 15 are passed through the through holes 14.

Since the spacing setting portion 13 protrudes from the side surface of the elastic band 2, a long groove-shaped gap 15 having a sufficient height in the vertical direction is formed between the upper portions of adjacent elastic bands 2. The width of this gap 15 is set to be slightly smaller than the diameter of the midway portion of the conical tee 16, and forms a tee holding portion 17 that can hold the tee 16 by inserting it. Therefore, each structure 4 has a thick upper part to strengthen the planting of the grass blades 3, and at the same time forms Tee holding portions 17 on the left and right over the entire length between adjacent structures 4, Tee-up is possible regardless of the presence or absence of sand 7. It is preferable that the tee holding portion 17 has a downwardly tapered shape.

The elastic band 2 has an upper part A protruding so as to come into contact with an adjacent elastic band 2, and a tee 16 on the side surface of the elastic band 2.
The Tee holding part 17 may be formed by forming a recess into which the Tee holding part 17 can be inserted. In that case, the spacing setting part 13 is formed only in the lower part B.

In the second embodiment shown in FIGS. 4 and 5, the artificial lawn structure 4 has an elastic protection part 11 integrally or adhesively formed upward from one side of the upper part A of the elastic band 2, and has a thick, high elasticity The interval setting section 13
A full-height one is formed on the other side of the elastic band 2,
It comes into contact with the elastic protection part 11 of the adjacent elastic band 2 and forms a Tee clamping part 17 between both elastic bands 2.

In the third embodiment shown in FIG. 6, the elastic band 2 has approximately the same shape as the first embodiment, but the elastic protection part 11
are formed on the left and right sides of the lawn leaf piece 3, and are symmetrical, making manufacturing and construction easy and enabling more reliable protection of the main body 10.

In the fourth embodiment shown in FIG. 7, the elastic band 2 is of a bilaterally symmetrical type having elastic protection parts 11 on the left and right sides of the main body 10 as in the third embodiment, but A groove 18 is formed along the longitudinal direction of the band, and the tee 16 is moved in the vertical direction 2.
It can be held at the points. A plurality of grooves 18 may be formed in the vertical direction so that the tee 16 is held at three or more locations.

In the fifth embodiment shown in FIG. 8, the elastic band 2 has the same shape as the first embodiment, and only the elastic protection part 11 is different. This elastic protection part 11 has a wavy shape, and its protrusion direction may be diagonally upward inclined in the longitudinal direction of the band, in addition to directly upward as shown in the figure, and this diagonally upward elastic protection part 11 is inclined It is preferable to set the direction to the shot direction.

In the sixth embodiment shown in FIG. 9, the elastic band 2 has upper and lower parts A and B of the same thickness, and
The upper part A is made of a material having higher elasticity than the upper part A, and an elastic protection part 11 is formed integrally with the upper part A or by adhering a separately formed part.

It should be noted that the present invention is not limited to the embodiments described above, and the features of each embodiment can be combined as appropriate. Furthermore, the interval setting section 13 is connected to the elastic band 2.
Although the spacer 2 is integrally molded with the
1 may be used.

(Effects of the Invention) The artificial lawn structure 4 of the present invention described in detail above constitutes an artificial lawn by arranging a large number of them in parallel. Since the elastic protection part 11 is integrally molded to the side of the part 10 and protrudes upward, the part where the grass blades 3 are planted and the part to be protected can be simply and easily molded with an elastic material, and the shoes and The club sole 12 comes into contact with the elastic protection part 11 and the stepping force and hitting force are alleviated, and such force is not directly applied to the core part 10, so the bending force is reduced and the elasticity is reduced. Peeling from the band 2 is prevented, and durability can be improved.

That is, since the elastic protection part 11 is integrally molded and protrudes upward from the upper part A of the elastic band 2, it can support the stepping force and the striking force and reduce the influence on the grass blades 3. 11 is grass leaf piece 3
Since the grass blades 3 are located with a gap on at least one side of the left and right sides of the blade, even if the grass blades 3 are subjected to an external force, only the middle part thereof contacts the elastic protection part 11 and is bent flexibly at a large radius. It is possible to avoid bending the section 10 at right angles, and since the elastic protection section 11 is not provided in the longitudinal direction of the strip of grass blade 3, even if the elastic protection section 11 is provided on the left and right sides. Good drainage and soil removal properties can be maintained. In particular, by arranging the artificial grass structure along the club swing direction on the teeing ground, the grass blades 3 can be greatly deformed flexibly even when hit by the club sole 12 without hitting the elastic protection part 11 too much. You can run away. The fact that the elastic protection part 11 is integrally molded with the part on which the grass blades 3 are planted means that when the elastic protection part 11 is deformed by hitting force or the like, the part where the grass leaves are planted will also be deformed to some extent. Although this deformation is unavoidable, this deformation occurs approximately in the bending direction of the lawn blade 3, and rather than having a negative effect on the lawn blade 3, it reduces the bending of the lawn blade 3 with respect to the planted area. As a result,
This helps prevent the lawn leaf pieces 3 from breaking and peeling off.

In addition, the artificial lawn 1 of the present invention has an elastic protection part 11 integrally formed on the elastic band 2 of the structure 4 and protrudes upward from the upper part to the side of the main part 10 of the lawn leaf piece 3, and from the side surface thereof. Laterally adjacent elastic band 2
Tee holding part 1 which holds the tee 16 together with
7 are formed in a protruding manner, and a large number of these structures 4 are arranged, so it is possible to reliably tee up even without the sand 7, and the effect of the club coming off due to the relaxation of the hitting force of the elastic protection part 11. Accompanied by
The best playing ground can be constructed.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a cross-sectional front view, FIG. 2 is a side view, and FIG.
The figure is a plan view, Figures 4 and 5 show the second embodiment, Figure 4 is an exploded perspective view, Figure 5 is a plan view, and Figures 6 and 7 are the third and fourth embodiments, respectively. 8 is a side view showing the fifth embodiment, FIG. 9 is a cross-sectional front view showing the sixth embodiment, and FIG. 10 is a cross-sectional front view showing the conventional example. 1... Artificial lawn, 2... Elastic band, 3... Lawn leaf piece, 4
...Artificial lawn structure, 7...Sand soil, 10...Key part, 1
DESCRIPTION OF SYMBOLS 1... Elastic protection part, 13... Spacing setting part, 17... Tee clamping part, A... Upper part, B... Lower part.

Claims (1)

[Scope of Claims] 1. An artificial lawn structure in which grass blades 3 are planted along the longitudinal direction of the elastic strips 2 in the upper part A of the elastic strips 2 which are arranged in parallel in large numbers to form an artificial lawn. In the body, an elastic protection part 11 is integrally molded on the elastic band 2, projecting upward from the upper part A of the elastic band 2 and protecting at least one left and right side of the main body 10 of the lawn leaf piece 3 through a gap. An artificial lawn structure. 2. In an artificial lawn constructed by arranging a large number of artificial lawn constructs 4 in parallel in which grass blades 3 are planted along the longitudinal direction of the elastic band 2 in the upper part A of the elastic band 2 arranged in the shape of a vertical wall, the elastic band 2 is The band 2 is integrally formed with an elastic protection part 11 that protrudes upward from the upper part A and protects at least one left and right side of the main body 10 of the lawn leaf piece 3 with a gap therebetween. An artificial lawn characterized in that a tee holding part 17 is formed in a protruding manner to sandwich a tee 16 together with an adjacent elastic band 2.