JPH0340762B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an artificial lawn in which a lawn substrate is buried in sandy soil for use in wide-area outdoor plazas, under outdoor play equipment, for sports, etc.

(Prior Art) In this type of conventional artificial lawn, for example, as shown in FIGS. 21 and 22, a large number of lawn substrates 2 each having lawn imitation leaf pieces 1 planted thereon are arranged in parallel, and each lawn substrate is A bolt 3 is inserted into the lower part of the lawn board 2, and the lawn board 2 is connected and fixed with a spacer 4 interposed therebetween.
When installing the grass substrate, there is one in which the lawn substrate 2 is buried in sand 5 together with bolts 3 and spacers 4. However, in conventional artificial lawns of this kind, in order to provide a soft feel and improve safety, the lawn substrate 2 was generally constructed of only a soft material such as rubber.

(Problems to be Solved by the Invention) Conventionally, when an artificial lawn is buried in the sand 5, the lawn substrate 2 is damaged by pressure from above the sand 5, etc., as shown by the chain line in FIG. There is a risk that the artificial lawn will fall down from the lower end, making the installation unstable.In particular, the central part between the spacers 4 will fall down while being greatly curved as shown by the chain lines in Figure 22, making the work of burying the artificial lawn extremely difficult. It was troublesome. Furthermore, even after installation, there was a strong possibility that the lawn base plate 2 would fall down from the lower end due to human body weight or earth pressure, and the lawn function would be impaired due to disturbance of the lawn imitation leaf pieces 1, etc.

In view of the above-mentioned problems, the present invention is designed to make the burying work easier without worrying that the lawn substrate will fall down significantly during burying, and to maintain stable turf function for a long period of time after installation. be.

(Means for solving the problem) The technical means of the present invention for solving this technical problem is an artificial lawn comprising a lawn substrate 8 and a lawn imitation leaf piece 15 embedded in the upper part of the lawn substrate 8. The upper part of the lawn substrate 8 in which the lawn imitation leaf pieces 15 are embedded is made of a soft material, and the lower part of the lawn substrate 8 is made of a hard material.

(Function) When the artificial lawn is buried in the sandy soil 5, the mounting body 13 on the upper part of the lawn 8 is bent so as to lie down slightly due to pressure from above the sandy soil 5, as shown by the chain line in FIG. Although there is a risk, since the lower part of the lawn board 8 (supporting body 9, connecting bodies 11, 12, outer frame 10) is made of hard material, the lawn board 8 will not fall down significantly from its lower end, and the lawn The substrate 8 can be stably installed in the sandy soil 5 in an upright state, and the work of burying the artificial lawn can be done easily and efficiently.

(Example) Hereinafter, the present invention will be explained according to the illustrated embodiment. In FIGS. 1 to 10, reference numeral 8 denotes a lawn substrate, and a plurality of supports 9 are arranged in parallel to each other.
, an outer frame 10 at the outer end in the longitudinal direction installed parallel to the support 9, a U-shaped first connection 11 and a strip-shaped second connection that connect the support 9 and the outer frame 10. It includes a body 12 and a strip-shaped mounting body 13 that projects upward from the support body 9. Each support 9 is provided with a fitting recess 14 formed downward from the upper end over the entire length, and the lower part of the mounting body 13 is inserted into the fitting recess 14 of each support 9 via an adhesive or the like. Fitted and fixed. The support body 9, the outer frame body 10, and the connecting bodies 11, 12 located at the lower part of the lawn substrate 8 are integrally constructed of a hard material such as hard vinyl chloride or ABS resin, and are attached to the upper part of the lawn substrate 8. 13 is made of a soft material such as soft vinyl chloride or rubber. 1
5 is a lawn imitation leaf piece, which is attached to each mounting body 13 of the lawn substrate 8.
It is buried in an upwardly protruding manner over its entire length.

Reference numeral 18 denotes a pair of engagement claws projecting outward from one longitudinal end of the lawn board 8, which are provided in pairs at intervals in the width direction of the board 8, and are integrally connected to the support 9 and the outer frame 10 at the outer end. has been done. Reference numeral 19 denotes a locking piece provided at the other end in the longitudinal direction of the lawn substrate 8, which is connected and fixed between the outer end support 9 and the outer frame 10, and is connected to the engaging claw 18.
A pair of locking claws 20 are provided in the width direction of the substrate 8 in correspondence with each other, and each locking piece 19 is formed with a locking pawl 20 vertically penetrating therethrough. These engaging claws 18 and locking pieces 19 are used when connecting two lawn substrates 8, 8 side by side in the longitudinal direction.
0 and 10 are joined together, the corresponding engaging claw 18 of one board 8 is connected to the locking piece 1 of the other board 8.
By engaging with the locking hole 20 of 9, the lawn substrates 8, 8 can be detachably connected.

Reference numeral 21 designates a plurality of engagement claws projecting outward from one end of the lawn substrate 8 in the width direction, and a plurality of engagement claws are integrally provided at intervals in the longitudinal direction from the first connecting body 11 at the outer end. Reference numeral 22 denotes a locking hole provided at the other end in the width direction of the lawn board 8, and a plurality of locking holes are formed vertically through the first connecting body 11 at the outer end corresponding to the engaging claws 21. These engaging claws 21 and locking holes 22 are used when connecting the two lawn substrates 8, 8 side by side in the width direction, and the first connecting bodies 11, 11 at the outer ends of the lawn substrates 8, 8 In this state, the grass substrates 8 can be detachably connected by engaging the connecting claws 21 of one of the corresponding substrates 8 with the locking holes 22 of the other substrate 8.

FIGS. 11 and 12 show another embodiment, in which the lawn substrate 8 includes a plurality of attachment bodies 25 arranged parallel to each other and a plurality of connection bodies 26 that integrally connect the lower parts of the attachment bodies 25. and a lawn substrate 8
, that is, the lower portion 25b of the mounting body 25 and the connecting body 26 are integrally formed of a hard material such as hard vinyl chloride. In addition, the upper part of the lawn board 8, that is, the mounting body 25
The upper part 25a is made of a soft material such as soft vinyl chloride and is formed continuously and integrally with the upper part of the connecting body 26, and the lawn imitation leaf piece 15 is buried in the upper part 25a of the attachment body 25 so as to protrude upwardly over the entire length. There is.

FIGS. 13 and 14 show still another embodiment, in which the lawn substrate 8 is connected to a plurality of first mounting bodies 28 arranged parallel to each other and perpendicularly to each of the first mounting bodies 28. The second mounting body 29 with multiple strips
The lower part of the lawn substrate 8, that is, the lower parts 28b, 29b of the mounting bodies 28, 29,
is integrally constructed of hard material. The upper part of the lawn substrate 8, that is, the upper parts 28a, 2 of the mounting bodies 28, 29
9a is formed of a soft material so as to be continuous with the lower parts 28b and 29b, and the lawn imitation leaf pieces 15 are buried in the upper parts 28a and 29a in an upwardly protruding manner.

FIGS. 15 and 16 show still another embodiment, in which the lawn substrate 8 includes a lower support body 31 made of a hard material and an upper mounting body 32 made of a soft material. The lower part of the support body 3 is fitted and fixed to the fitting recess 33 with an adhesive or the like,
A lawn imitation leaf piece 15 is embedded in the mounting body 32 in an upwardly projecting manner. A large number of lawn boards 8 are arranged in parallel, and a bolt 34 is inserted into the lower part of the mounting body 32 of each lawn board 8, and a spacer 35 that fits onto the bolt 34 is interposed between each mounting body 32, so that the bolt 34 is Each lawn board 8 is connected and fixed by tightening with nuts 36 screwed into both ends.

FIGS. 17 and 18 show another embodiment, in which lower supports 31 made of a hard material are curved in a corrugated manner, connected to each other via bolts 34 and spacers 35, and made of a soft material. An upper mounting body 32 is fitted and fixed in a fitting recess 33 of the support body 31.

FIGS. 19 and 20 show still another embodiment, in which the lawn substrate 8 includes a plurality of supports 38 formed in a corrugated shape and arranged parallel to each other, and each support 38
and a mounting body 41 that is fitted and fixed to the fitting recess 40 of the support body 38 with an adhesive or the like.
is buried in an upwardly protruding manner. The lower part of the lawn board 8, that is, the support body 38 and the connecting body 41 are made of hard material, and the upper part of the lawn board 8, that is, the mounting body 4
1 is made of a soft material.

Note that the upper part of the substrate 8 made of a soft material is
It is preferable that the height of the lower part of the substrate 8 made of a hard material is 1/2 or more of the total height. However, in the case of FIGS. 13 and 14, the mounting bodies 28, 29 are in the form of a grid, and in the case of the embodiments of FIGS. 17, 18, 19, and 20, the support 31, 38 and the mounting bodies 32, 41 are curved, which increases rigidity and uprightness. may be less than or equal to 1/2 of the height of the substrate 8.

(Effects of the Invention) According to the present invention, the upper part of the lawn substrate 8 in which the lawn imitation leaf pieces 15 are embedded is made of a soft material, and the lower part of the lawn substrate 8 is made of a hard material. When burying the lawn, there is no risk that the lawn substrate 8 will fall down from its lower end due to the pressure of the sand 5, etc., and the lawn substrate 8 is buried in the sand 5.
The artificial lawn can be stably installed inside the lawn, the work of burying the artificial lawn can be done easily and efficiently, and the labor costs for laying the lawn can be significantly reduced, making it possible to cope with a vast installation area. . Moreover, even after the lawn is laid, the lawn substrate 8 will not fall down significantly from the lower end due to the weight of the human body, and a stable lawn function can be maintained for a long period of time. In addition, since the upper part of the lawn substrate 8 is made of a soft material, it has a soft feel like the conventional one, and the softness of the upper part of the lawn substrate 8 also provides high safety, and the effect is significant.

Furthermore, since the upper part of the lawn substrate 8 is made of a soft material,
The upper part of the board 8 can be easily bent down due to elastic deformation due to pressure such as pedal force, and since the lower part of the board 8 is hard, the restoring force for returning the upper part of the board 8 to its original upright state is relatively large. It easily returns to the upright state when the pressure is released. Therefore, the upper part of the substrate 8 is frequently shaken, thereby loosening the sand 5 in the portion corresponding to the upper part of the substrate 8, and forming the sand 5 into a layer of moderate hardness. As a result, the artificial lawn of the present invention can be made to resemble a natural lawn, and the swinging of the upper part of the substrate 8 acts as an effective buffer against pressure, preventing wear of the leaf pieces 15 and damage to the substrate 8. can. Furthermore, it is possible to loosen the sand and soil 5 to soften its impact on the human body, and to even out the level of the sand and soil 5.

[Brief explanation of drawings]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is a front view of the same, FIG. 3 is a right side view of the same, FIG. 4 is a left side view of the same, FIGS. 5 to 7 are perspective views of the same, and FIG. Figure 9 is B of Figure 1.
-B sectional view, FIG. 10 is a C-C sectional view of FIG. 1, and FIG. 11 is a front sectional view showing another embodiment.
2 is a sectional view taken along line D-D in FIG. 11, FIG. 13 is a front sectional view showing another embodiment, FIG. 14 is a sectional view taken along line E-E in FIG. 13, and FIG. 15 is another embodiment. A front sectional view showing an example, FIG. 16 is a plan view of the same, FIG. 17 is a plan view showing another embodiment, and FIG. 18 is F-F in FIG. 17.
A line sectional view, FIG. 19 is a plan view showing another embodiment,
20 is a front sectional view of the same, FIG. 21 is a front sectional view showing a conventional example, and FIG. 22 is a sectional view taken along the line GG in FIG. 21. 8... Lawn substrate, 15... Lawn imitation leaf piece.

Claims (1)

[Claims] 1. In an artificial lawn comprising a lawn substrate 8 and a lawn imitation leaf piece 15 embedded in the upper part of the lawn substrate 8, the upper part of the lawn substrate 8 in which the lawn imitation leaf piece 15 is embedded is made of a soft material. The artificial lawn is characterized in that the lower part of the lawn substrate 8 is made of a hard material.