JP4583421B2

JP4583421B2 - Lawn construction structure

Info

Publication number: JP4583421B2
Application number: JP2007217165A
Authority: JP
Inventors: 喜郎森下; 保今吉
Original assignee: SHINWA SYOJI CO., LTD.
Current assignee: SHINWA SYOJI CO., LTD.
Priority date: 2007-08-23
Filing date: 2007-08-23
Publication date: 2010-11-17
Anticipated expiration: 2027-08-23
Also published as: JP2009052200A

Description

本発明は、天然芝と人工芝とを混在させてなる芝生施工構造に関する。 The present invention relates to a lawn construction structure in which natural grass and artificial grass are mixed.

近年、ヒートアイランド現象の緩和や、太陽光の照り返しの防止による地球温暖化対策の一環として、あるいは雨水の浸透性を十分に確保しつつ下水設備の負担を軽減することを目的として、交通量の少ない駐車場や消防車進入路、あるいは遊歩道などに天然芝を植栽するときの天然芝の保護構造が種々提案されている。例えば、特許文献１には、厚さ方向に延びる複数の空洞部を有するハニカム状の基材マットを用い、この基材マットを芝生施工位置の地盤上に敷設し、その後、基材マットの空洞部内に上面一杯になるまで客土を充填して天然芝を植栽することで、隣接する空洞部間の区画壁の上端部で、車両の荷重を受け止めて、植栽した天然芝が踏み潰されないように構成したものが提案される。 In recent years, as a part of global warming countermeasures by alleviating the heat island phenomenon and preventing the reflection of sunlight, or reducing the burden on sewage facilities while ensuring sufficient permeability of rainwater Various protection structures for natural turf have been proposed when planting natural turf in parking lots, fire truck approach paths, or promenades. For example, in Patent Document 1, a honeycomb-shaped base mat having a plurality of cavities extending in the thickness direction is used, and the base mat is laid on the ground at a lawn construction position. By filling the soil and planting natural turf until the top surface is full, the upper end of the partition wall between adjacent cavities receives the vehicle load, and the planted natural turf is crushed. What is configured not to be proposed is proposed.

一方、人工芝として、柔軟性を有する紐状部材に人工芝を植設してなる、紐状人工芝が提案されている（例えば、特許文献２参照。）。また、天然芝と人工芝とを均一に混在させてなる舗装面を形成可能な天然芝入り人工芝も提案されている（例えば、特許文献３参照。）。 On the other hand, as an artificial turf, a string-like artificial turf is proposed in which artificial turf is planted on a flexible string-like member (see, for example, Patent Document 2). In addition, an artificial turf with natural turf that can form a pavement surface in which natural turf and artificial turf are mixed uniformly has been proposed (see, for example, Patent Document 3).

特開平０８−９２９０８号公報Japanese Patent Application Laid-Open No. 08-92908 特開平０３−２８４０４号公報Japanese Patent Laid-Open No. 03-28404 特開２００１−１３６８２９号公報JP 2001-136829 A

ところで、特許文献１記載の保護構造では、天然芝が踏み潰されることを防止して、天然芝の生育を促進できるが、通常の天然芝と同様に、十分な散水を行わないと、芝生が枯れるという問題は避けられないし、天候によっても、日照りが続く場合には、芝生が弱って枯れるという問題がある。そして、このように天然芝が枯れてしまうと、空洞部内に投入した土壌の地肌が露出して、芝生の施工部位における景観が低下する。また、駐車場等においては、車両が頻繁に出入りする部分の芝生がどうしても擦り切れてその生育が遅くなったり、枯れたりすること、車両の駐車位置の下側の日射の少ない部分と、それ以外の日射の多い部分とで、天然芝の生育に差が生じて、芝生が斑になったり、芝生が斑に枯れたりすること、などの問題がある。 By the way, with the protective structure described in Patent Document 1, it is possible to prevent the natural turf from being crushed and promote the growth of the natural turf. The problem of withering is inevitable, and there is a problem that the lawn weakens and dies if the sunlight continues even depending on the weather. And when natural turf withers like this, the ground of the soil thrown in in the cavity part will be exposed, and the scenery in the construction site | part of a lawn will fall. Also, in parking lots etc., the lawn where the vehicle frequently enters and exits is rubbed out and its growth slows down or withers. There is a problem in that the natural turf grows differently from the part where there is a lot of sunlight, and the lawn becomes mottled or the lawn becomes mottled.

更に、特許文献１記載のような天然芝の植栽構造は、通常、雨水等を溜めておくための貯水部がないので、天然芝が枯れることを防止するためには、頻繁に散水する必要があり、大きな駐車場等においては散水作業が煩雑になるという問題もある。 Furthermore, since the natural turf planting structure described in Patent Document 1 does not normally have a water storage part for storing rainwater or the like, it is necessary to spray water frequently in order to prevent the natural turf from withering. There is also a problem that watering work becomes complicated in a large parking lot or the like.

本発明の目的は、天然芝の生育を促進しつつ、万一、天然芝が枯れてしまったり、天然芝の生育に差が生じてしまったりした場合であっても、人工芝により芝生の景観や意匠性の低下を効果的に防止可能な芝生施工構造を提供することである。 The purpose of the present invention is to promote the growth of natural turf, and even if the natural turf is withered or the natural turf grows differently, the artificial turf will It is to provide a lawn construction structure that can effectively prevent deterioration of design properties.

本発明者は、天然芝は人工芝と比較して風合いに優れているが、維持管理に手間がかかり、枯れると見栄えが悪くなるのに対して、人工芝は天然芝程には意匠性に優れてはいないが、維持管理が容易で、しかも常時安定した景観が得られることに着目し、天然芝と人工芝とを混在させて芝生を構成することで、天然芝の風合いを残しつつ、万一、天然芝が枯れた場合における芝生の景観や意匠性の低下を人工芝で補うことができることを見出して、本発明を完成するに至った。 The present inventor found that natural turf is superior in texture compared to artificial turf, but it takes time and effort to maintain and deteriorates the appearance when it dies. Although it is not excellent, it focuses on the fact that it is easy to maintain and always obtains a stable landscape, and by creating a lawn that mixes natural turf and artificial turf, leaving the texture of natural turf, In the unlikely event that the natural turf withered, it was found that artificial grass could compensate for the turf landscape and design loss, and the present invention was completed.

本発明に係る芝生施工構造は、厚さ方向に延びる複数の空洞部を有するハニカム状の基材マットと、細長い紐状基材に人工芝を植設してなる紐状人工芝とを備え、前記基材マットにおける隣接する空洞部間に配置される区画壁の上部に切欠部を形成し、この切欠部に前記紐状人工芝を嵌合固定して、前記紐状人工芝を前記基材マットの複数の空洞部にわたって設けることで、基材マットに人工芝を植設するとともに、基材マットの空洞部に客土を充填して天然芝を植栽したものである。尚、天然芝は、客土に芝生の種を播いて生育させてもいし、予め生育させた天然芝を基材マットに植栽してもよい。 The lawn construction structure according to the present invention includes a honeycomb-shaped base mat having a plurality of hollow portions extending in the thickness direction, and a string-shaped artificial turf formed by planting artificial turf on an elongated string-shaped base, A notch is formed in the upper part of a partition wall arranged between adjacent cavities in the base mat, and the string-like artificial turf is fitted and fixed to the notch, and the string-like artificial turf is fixed to the base. By providing over a plurality of hollow portions of the mat, artificial turf is planted on the base mat, and natural turf is planted by filling the hollow portion of the base mat with soil. The natural turf may be grown by sowing seeds on the soil, or the natural turf grown in advance may be planted on a base mat.

この芝生施工構造では、紐状人工芝と天然芝とで芝生を構成できるので、人工芝のみにより芝生を構成する場合と比較して、天然芝の良好な風合いを芝生に付与でき、また天然芝のみにより芝生を構成する場合と比較して、灌水量を少なくできるとともに、天然芝が万一枯れた場合であっても、人工芝により芝生の景観低下や意匠性の低下を防止することができる。しかも、紐状人工芝を基材マットの区画壁に形成した切欠部に順次嵌合させることによって、基材マットに対して人工芝を容易に施工できるので、基材マットの空洞部に対して個別に人工芝を植設する場合と比較して、人工芝の施工作業性を格段に向上できる。また、空洞部に充填した客土に天然芝を植栽しているので、空洞部を形成する区画壁により天然芝が踏み潰されることを防止して、天然芝の生育を促進することができる。 In this lawn construction structure, a lawn can be composed of string-like artificial turf and natural turf, so that compared to the case where lawn is composed only of artificial turf, natural turf can be given a better texture, and natural turf is also provided. Compared with the case where the lawn is composed solely, the irrigation amount can be reduced, and even if the natural turf is withered, the artificial turf can prevent the scenery of the lawn and the design from being lowered. . Moreover, the artificial turf can be easily applied to the base mat by sequentially fitting the string-like artificial turf into the notch formed in the partition wall of the base mat, The artificial turf construction workability can be greatly improved compared to the case of individually planting artificial turf. Moreover, since natural turf is planted in the soil filled in the cavity, it is possible to prevent the natural turf from being crushed by the partition wall forming the cavity, and to promote the growth of natural turf. .

ここで、前記紐状人工芝として、貯水可能な溝部を有する細長い紐状基材に人工芝を植設してなるものを用いることが好ましい実施の形態である。この紐状人工芝を用いると、雨水や散水を紐状基材の溝部に一時的に貯留できるので、灌水不足により天然芝が枯れてしまうことを効果的に防止できる。また、溝部内に貯留した雨水等が紐状人工芝の全長にわたって一様に分散しようとするので、散水にバラツキがあったとしても、灌水量を一様に調整することができる。 Here, as the string-like artificial turf, it is a preferred embodiment to use an artificial turf planted on an elongated string-like base material having a groove portion capable of storing water. When this string-like artificial turf is used, rainwater and water spray can be temporarily stored in the groove part of the string-like base material, so that it is possible to effectively prevent the natural turf from withering due to insufficient irrigation. In addition, since rainwater or the like stored in the groove tends to disperse uniformly over the entire length of the string-like artificial turf, the amount of irrigation can be adjusted uniformly even if the watering varies.

前記紐状基材として、断面がＵ型又はＹ型又はＨ型の押し出し成形品からなるものを用いることができる。このような断面形状であれば、上部に貯水可能な溝部を有する紐状基材を、合成樹脂材料などを押出成形することにより安価に且つ効率的に製作することができる。 As said string-like base material, a cross section made of an extruded product having a U-shaped, Y-shaped or H-shaped cross section can be used. If it is such a cross-sectional shape, the string-like base material which has the groove part which can store water in the upper part can be manufactured cheaply and efficiently by extruding a synthetic resin material etc.

前記紐状人工芝と基材マットとの嵌合部に、紐状人工芝を基材マットから引き抜くことを防止するための凹凸嵌合部を設けることもできる。このように構成することで、紐状人工芝が基材マットから引き抜かれるという悪戯を効果的に防止できる。 A concave / convex fitting portion for preventing the string-like artificial turf from being pulled out of the base mat can be provided in the fitting portion between the string-like artificial turf and the base mat. By comprising in this way, the mischief that a string-like artificial grass is pulled out from a base mat can be prevented effectively.

前記紐状人工芝の紐状基材に下側へ延びるアンカー部を形成することもできる。このようなアンカー部を設けると、紐状人工芝が基材マットから引き抜かれるという悪戯を一層効果的に防止できる。 An anchor portion extending downward can be formed on the string-like base material of the string-like artificial turf. Providing such an anchor portion can more effectively prevent the mischief that the string-like artificial turf is pulled out from the base mat.

前記天然芝の生育条件に応じて、天然芝と人工芝の混合割合を調整することもできる。例えば、日当たりの良くない部位や、車両が頻繁に出入りする部位などのように、天然芝の生育条件があまり良くない部位に関しては、他の部位と比較して天然芝の生育が遅れたり、天然芝が枯れたりし易いので、人工芝の混合割合を他の部位と比較して高く設定し、天然芝の生育遅れや枯れによる芝生の景観や意匠性の低下を防止することができる。 Depending on the growth conditions of the natural turf, the mixing ratio of natural turf and artificial turf can be adjusted. For example, in areas where natural turf growth conditions are not so good, such as areas with poor sunlight or where vehicles frequently come and go, natural turf growth is delayed compared to other areas, Since the turf tends to wither, the mixing ratio of the artificial turf is set higher than that of other parts, and the lawn landscape and the design can be prevented from deteriorating due to the delayed growth or withering of the natural turf.

本発明に係る芝生施工構造によれば、紐状人工芝と天然芝とで芝生を構成できるので、人工芝のみにより芝生を構成する場合と比較して、天然芝の良好な風合いを芝生に付与でき、また天然芝のみにより芝生を構成する場合と比較して、灌水量を少なくできるとともに、天然芝が万一枯れた場合であっても、人工芝により芝生の景観や意匠性の低下を防止することができる。しかも、紐状人工芝を基材マットの区画壁に形成した切欠部に順次嵌合させることによって、基材マットに対して人工芝を容易に施工できるので、基材マットの空洞部に対して個別に人工芝を植設する場合と比較して、人工芝の施工作業性を格段に向上できる。また、空洞部に充填した客土に天然芝を植栽しているので、空洞部を形成する区画壁により天然芝が踏み潰されることを防止して、天然芝の生育を促進することができる。 According to the lawn construction structure according to the present invention, a lawn can be composed of a string-like artificial turf and a natural turf, so that a better texture of the natural turf is imparted to the lawn as compared with the case where the lawn is composed only of artificial turf. In addition, the amount of irrigation can be reduced compared to the case where the lawn is composed solely of natural turf, and even if the natural turf is withered, the artificial turf prevents deterioration of the landscape and design of the lawn. can do. Moreover, the artificial turf can be easily applied to the base mat by sequentially fitting the string-like artificial turf into the notch formed in the partition wall of the base mat, The artificial turf construction workability can be greatly improved compared to the case of individually planting artificial turf. Moreover, since natural turf is planted in the soil filled in the cavity, it is possible to prevent the natural turf from being crushed by the partition wall forming the cavity, and to promote the growth of natural turf. .

以下、本発明の実施の形態について図面を参照しながら説明する。
図１〜図５に示すように、芝生施工構造１は、厚さ方向に延びる複数の空洞部１１を有するハニカム状の基材マット１０と、細長い紐状基材２１に人工芝２２を植設してなる紐状人工芝２０とを備え、基材マット１０における隣接する空洞部１１を区画する区画壁１２の上部に切欠部１３を形成し、この切欠部１３に紐状人工芝２０を嵌合固定して、紐状人工芝２０を複数の空洞部１１にわたって設けて、基材マット１０に人工芝２２を植設するとともに、基材マット１０の空洞部１１に客土２を充填して天然芝３を基材マット１０に植栽したものである。より具体的には、図４（ａ）に示すように、芝生施工構造１の施工部位の地盤４を整地してその上に基材マット１０を設置してから、図４（ｂ）に示すように、切欠部１３の下端部まで空洞部１１内に客土２を充填し、図４（ｃ）に示すように、紐状人工芝２０を切欠部１３に嵌合させて、基材マット１０に人工芝２２を植設してから、図４（ｄ）に示すように、空洞部１１内に上面一杯まで客土２を充填して、図４（ｅ）に示すように、天然芝３の種を播いて天然芝３を生育させることになる。但し、種を播く代わりに、予め生育させた天然芝３を空洞部１１内に植栽することも本発明の範疇である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 5, the lawn construction structure 1 includes a honeycomb-shaped base mat 10 having a plurality of cavities 11 extending in the thickness direction, and an artificial lawn 22 in an elongated string-shaped base 21. A notch 13 is formed in the upper part of the partition wall 12 that partitions the adjacent cavity 11 in the base mat 10, and the string-like artificial turf 20 is fitted into the notch 13. The artificial turf 22 is installed in the base mat 10 while the string-like artificial turf 20 is provided over the plurality of cavities 11, and the soil 2 is filled in the cavities 11 of the base mat 10. Natural grass 3 is planted on a base mat 10. More specifically, as shown in FIG. 4 (a), the ground 4 of the construction site of the lawn construction structure 1 is leveled and the base mat 10 is placed thereon, and then shown in FIG. 4 (b). As shown in FIG. 4 (c), the base material mat is formed by filling the soil 2 into the cavity 11 up to the lower end of the notch 13 and fitting the string-like artificial grass 20 into the notch 13 as shown in FIG. After the artificial turf 22 is planted in 10, as shown in FIG. 4 (d), the soil 11 is filled up to the top of the cavity 11 and the natural turf is filled as shown in FIG. 4 (e). 3 seeds will be sown and the natural turf 3 will grow. However, instead of sowing seeds, it is also within the scope of the present invention to plant the natural turf 3 grown in advance in the cavity 11.

基材マット１０は、高密度ポリエチレンなどの硬質プラスチックなどからなる一体成形品で構成されている。基材マット１０には、厚さ方向に延びる６角筒状の複数の単位セル１４がハニカム状に設けられ、各単位セル１４内には厚さ方向に延びる６角柱状の空洞部１１が形成されている。各単位セル１４は、６つの辺に配置される略平板状の区画壁１２と、６つの角部に配置される略三角柱状の支柱部１５と、区画壁１２と支柱部１５との連設部に設けた略円柱状の補強部１６と、中央部に開口１７を形成した底板１８とを備え、上面を開放した６角筒状に形成されている。尚、基材マット１０の側部には図示外の凹凸嵌合構造が設けられ、この凹凸嵌合構造を介して隣接する基材マット１０に着脱自在に連結されている。また、各基材マット１０は、その施工位置がずれないように、図５に示すように、アンカーピン５を用いて設定間隔おきに施工部位の地盤４に固定することが好ましい。 The base mat 10 is an integrally molded product made of hard plastic such as high density polyethylene. A plurality of hexagonal cylindrical unit cells 14 extending in the thickness direction are provided in the substrate mat 10 in a honeycomb shape, and a hexagonal columnar cavity 11 extending in the thickness direction is formed in each unit cell 14. Has been. Each unit cell 14 includes a substantially flat partition wall 12 disposed on six sides, a substantially triangular pillar-shaped support column 15 disposed on six corners, and a continuous connection of the partition wall 12 and the support column 15. A substantially cylindrical reinforcing portion 16 provided in the portion and a bottom plate 18 in which an opening 17 is formed in the central portion are formed, and is formed in a hexagonal cylindrical shape having an open upper surface. In addition, the uneven | corrugated fitting structure which is not shown in figure is provided in the side part of the base material mat 10, and is connected to the adjacent base material mat 10 through this uneven | corrugated fitting structure so that attachment or detachment is possible. Moreover, as shown in FIG. 5, it is preferable to fix each base mat 10 to the ground 4 of a construction site | part using the anchor pin 5 as set intervals so that the construction position may not shift | deviate.

各区画壁１２の上部には切欠部１３が形成され、この切欠部１３に紐状人工芝２０を嵌合させて、複数の空洞部１１間に亙って紐状人工芝２０が連続的に配置されている。また、この切欠部１３は、紐状人工芝２０を嵌合させない箇所においては、隣接する空洞部１１間にわたって天然芝３の根が延びるための通路として機能し、天然芝３の根が縦横に延びることで、日照りや灌水不足に対して強い天然芝３を生育できる。底板１８の中央部には開口１７が形成され、この開口１７を通って基材マット１０の下側の地盤４にまで天然芝３の根がはることができるとともに、単位セル１４内の水捌け性能を十分に確保できるように構成されている。 A notch 13 is formed in the upper part of each partition wall 12, and a string-like artificial turf 20 is fitted into the notch 13, and the string-like artificial turf 20 is continuously stretched between the plurality of cavities 11. Has been placed. Moreover, this notch part 13 functions as a path | route for the root | route of the natural turf 3 to extend between the adjacent cavity parts 11 in the location where the string-like artificial turf 20 is not fitted, and the root of the natural turf 3 is vertically and horizontally. By extending, it is possible to grow natural turf 3 that is strong against sunshine and insufficient irrigation. An opening 17 is formed in the central portion of the bottom plate 18, and the root of the natural turf 3 can pass through the opening 17 to the ground 4 on the lower side of the base mat 10, and water in the unit cell 14 can be drained. It is configured to ensure sufficient performance.

前記基材マット１０において歩行者や車両などの上載荷重は、支柱部１５及び補強部１６により受け止められる。また、空洞部１１内には客土２が上面一杯まで充填されるが、空洞部１１内の客土２は徐々に詰まった状態となり、基材マット１０上を歩行する歩行者や基材マット１０上を通過する車両と、客土２の上面間に空間１９が形成され、これにより歩行時や車両の通過時においても、天然芝３が踏み潰されることが防止されている。尚、空洞部１１内への客土２の充填時に、客土２の充填量を空洞部１１の９分目程度に設定することも好ましい実施である。このように構成すると、芝生施工構造１の施工直後から、空間９が形成されるので、播いた芝生の種の生育を促進したり、植生した芝生の生育を促進できるので好ましい。 In the base mat 10, an overload such as a pedestrian or a vehicle is received by the support column 15 and the reinforcement unit 16. Moreover, although the customer's land 2 is filled to the upper surface full in the cavity part 11, the customer's soil 2 in the cavity part 11 will be in the state which became gradually clogged, and the pedestrian who walks on the base material mat 10, or a base material mat A space 19 is formed between the vehicle passing over 10 and the upper surface of the land 2 so that the natural turf 3 is prevented from being crushed even when walking or passing the vehicle. In addition, it is also preferable to set the filling amount of the soil 2 to about the ninth minute of the cavity 11 when filling the soil 2 into the cavity 11. If comprised in this way, since the space 9 will be formed immediately after construction of the lawn construction structure 1, it is preferable because the growth of the seeds of the sown lawn can be promoted or the growth of the vegetated lawn can be promoted.

基材マット１０としては、歩行者や車両などの上載荷重に耐え得るものであれば任意の構成のものを採用することが可能である。また、基材マット１０の各部の寸法は任意に設定できるが、駐車場などの比較的広い領域に敷設する場合には、敷設枚数を少なくして作業効率を高めるため、例えば厚さ５０ｍｍ、幅６００ｍｍ長さ、２５００ｍｍの比較的大きな長方形状のものを好適に採用できる。また、各単位セル１４を構成する６本の支柱部１５の中心を通る円の直径は、大きすぎると、例えば歩行時に靴の踵や先が単位セル１４内に嵌り込むなど、歩行性の低下が懸念され、小さすぎると天然芝３の生育領域を十分に確保できないので、９０ｍｍ〜１１５ｍｍに設定することが好ましい。また、空洞部１１が６角柱状となるように区画したが４角柱状やその他の円柱や角柱形状となるように区画することも可能である。 As the base mat 10, it is possible to adopt any configuration as long as it can withstand an overload such as a pedestrian or a vehicle. Moreover, although the dimension of each part of the base mat 10 can be set arbitrarily, in the case of laying in a relatively wide area such as a parking lot, in order to increase the work efficiency by reducing the number of laying, for example, a thickness of 50 mm, a width A relatively large rectangular shape having a length of 600 mm and 2500 mm can be suitably employed. In addition, if the diameter of the circle passing through the center of the six support columns 15 constituting each unit cell 14 is too large, for example, the heel and the tip of the shoe are fitted into the unit cell 14 during walking, and the walking performance is reduced. If it is too small, the growth area of the natural turf 3 cannot be secured sufficiently, so it is preferable to set it to 90 mm to 115 mm. Further, although the hollow portion 11 is partitioned so as to have a hexagonal column shape, it may be partitioned so as to have a quadrangular column shape or other cylindrical or prismatic shapes.

紐状人工芝２０は、断面略Ｕ字状の長尺な細長い紐状基材２１と、紐状基材２１の底壁に設定間隔おきに植設してなる人工芝２２とを備え、紐状基材２１を切欠部１３に嵌合させて基材マット１０に組み付けられている。 The string-like artificial turf 20 includes a long and slender string-like base material 21 having a substantially U-shaped cross section, and artificial turf 22 planted on the bottom wall of the string-like base material 21 at set intervals. The base material 21 is fitted to the notch 13 and assembled to the base mat 10.

紐状基材２１は、ポリエチレンやポリプロピレン、軟質塩化ビニールなどの合成樹脂材料や、アルミニウム合金などの金属材料を押出成形して製作した、断面略Ｕ字状の部材で構成されている。特に、紐状基材２１として、柔軟性を有する合成樹脂材料からなるものを採用すると、前述のように、基材マット１０に対して文字や記号などを模るように取り付けたり、駐車場等における案内表示を模るように取り付けたりするときに、紐状人工芝２０を容易に折り曲げることができるので好ましい。また、押出成形品で構成すると、紐状基材２１を安価に製作することができる。更に、紐状基材２１を断面略Ｕ字状に形成することで、紐状基材２１内に上方へ向けて開口する溝部２３が形成され、この溝部２３が雨水や散水等を一時的に貯留する貯水空間とし機能するので、散水回数を少なくできる。尚、このような溝部２３を有する押出成形品からなる紐状基材２１としては、図６（ａ）に示すような断面Ｕ型の紐状基材２１以外に、図６（ｂ）に示すような断面Ｈ型の紐状基材２１Ａや、図６（ｃ）に示すような断面Ｙ型の紐状基材２１Ｂを採用することもできる。但し、紐状基材２１としては、人工芝２２を植設可能な細長い部材からなるものであれば、任意の構成のものを採用することができる。例えば、合成樹脂繊維を平織した平坦な帯状の基布を紐状基材２１として採用することもできる。この場合には、絨毯などにおけるパイル糸の植設方法と同様に、タフティングにより人工芝２２を植設させることができる。また、円柱や円筒状の紐状基材を採用し、この紐状部材の内部空間を貯水空間として活用することもできる。 The string-like base material 21 is configured by a member having a substantially U-shaped cross section produced by extrusion molding a synthetic resin material such as polyethylene, polypropylene, or soft vinyl chloride, or a metal material such as an aluminum alloy. In particular, when a material made of a synthetic resin material having flexibility is employed as the string-like base material 21, it is attached to the base mat 10 so as to imitate characters or symbols, as described above, or a parking lot or the like. This is preferable because the string-like artificial turf 20 can be easily folded when it is attached so as to imitate the guidance display. Moreover, if it comprises an extrusion molded product, the string-like base material 21 can be manufactured at low cost. Furthermore, by forming the string-like base material 21 into a substantially U-shaped cross section, a groove part 23 is formed in the string-like base material 21 so as to open upward, and the groove part 23 temporarily collects rainwater, sprinkling water, and the like. Since it functions as a water storage space for storage, the number of water sprays can be reduced. In addition, as the string-like base material 21 made of an extrusion-molded product having such a groove portion 23, in addition to the string-like base material 21 having a U-shaped cross section as shown in FIG. Such a string-like base material 21A having an H-shaped cross section or a string-like base material 21B having a Y-shaped cross section as shown in FIG. However, as the string-like base material 21, an arbitrary structure can be adopted as long as it is made of an elongated member on which the artificial turf 22 can be implanted. For example, a flat belt-like base fabric obtained by plain weaving synthetic resin fibers can be used as the string-like substrate 21. In this case, the artificial turf 22 can be planted by tufting as in the pile yarn planting method in a carpet or the like. Moreover, a columnar or cylindrical string-like base material is adopted, and the inner space of the string-like member can be used as a water storage space.

人工芝２２としては、合成樹脂繊維や天然繊維などかなる繊維材や、幅１〜３ｍｍ程度の合成樹脂テープを複数本束ねてものを好適に利用できる。合成樹脂繊維や合成樹脂テープとしては、ポリプロピレンやポリエチレン等のオレフィン系合成樹脂やポリアミド、ポリ塩化ビニリデン、ポリエステル等の合成樹脂材料からなるものを好適に採用できる。繊維材は、モノフィラメントタイプでもよいし、マルチフィラメントタイプでもよい、またスプリット加工や捲縮加工や着色加工などの加工を施したものを採用することも可能である。人工芝２２の長さは、紐状基材２１を切欠部１３に嵌合させて、紐状人工芝２０を基材マット１０に取り付けた状態で、人工芝２２が基材マット１０の上端部から１０〜３０ｍｍ程度上方へ突出するような長さに設定され、天然芝３が枯れた場合でも、人工芝２２により景観や意匠性が十分に確保できるように構成されている。 As the artificial turf 22, a fiber material made of synthetic resin fibers or natural fibers or a plurality of synthetic resin tapes having a width of about 1 to 3 mm can be suitably used. As the synthetic resin fiber and the synthetic resin tape, those made of an olefin-based synthetic resin such as polypropylene and polyethylene, or a synthetic resin material such as polyamide, polyvinylidene chloride, and polyester can be suitably used. The fiber material may be a monofilament type or a multifilament type, and a fiber material that has been subjected to processing such as split processing, crimp processing, or coloring processing may be employed. The length of the artificial turf 22 is such that the artificial turf 22 is attached to the notch 13 and the artificial turf 22 is attached to the base mat 10 so that the artificial turf 22 is attached to the upper end of the base mat 10. It is set to such a length that it protrudes upward by about 10 to 30 mm, and even when the natural turf 3 withers, the artificial turf 22 can sufficiently ensure the landscape and the design.

紐状基材２１に対する人工芝２２の植設方法は、ステープラーによる固定や、熱融着や、接着剤による固定など、周知の植設方法を採用できる。例えば、図５に示すように、複数本の繊維材や合成樹脂テープを設定長さに切断して葉束２４を製作し、この葉束２４の途中部をステープラーの略コ字状の針２５により紐状基材２１の底壁に一定間隔おきに固定することで植設することができる。また、葉束２４を紐状基材２１に固定する際には、ステープラーの針２５の途中部が紐状基材２１の長さ方向になるように固定することで、紐状基材２１の側壁により葉束２４を上方へ案内して、葉束２４の姿勢を安定させることができる。 As a method for planting the artificial turf 22 with respect to the string-like substrate 21, a well-known planting method such as fixing with a stapler, heat fusion, or fixing with an adhesive can be employed. For example, as shown in FIG. 5, a leaf bundle 24 is manufactured by cutting a plurality of fiber materials or synthetic resin tapes to a set length, and a staple 25 having a substantially U-shaped needle 25 is formed in the middle of the leaf bundle 24. Thus, it can be planted by fixing to the bottom wall of the string-like base material 21 at regular intervals. Further, when the leaf bundle 24 is fixed to the string-like base material 21, the middle part of the staple 25 of the stapler is fixed so as to be in the length direction of the string-like base material 21. By guiding the leaf bundle 24 upward by the side wall, the posture of the leaf bundle 24 can be stabilized.

基材マット１０に対する紐状人工芝２０の配設レイアウトは、図２に示すように、各単位セル１４に対して１本の紐状人工芝２０が斜めに横断するように取り付けることもできるし、１つおき或いは複数個おきの単位セル１４に対して１本の紐状人工芝２０が斜めに横断するように取り付けることもできる。また、図７（ａ）に示すように、基材マット１０に対して紐状人工芝２０を例えば波形状に取り付けたり、文字や記号などを模るように取り付けたり、駐車場等における案内表示を模るように取り付けたりすること可能である。但し、案内用として用いる場合には、表示が見易くなるように、紐状人工芝２０として、通常の芝生とは異なる色、例えば白色に着色したものを用いることができる。更に、図８に示すように、基材マット１０に代えて、深さの異なる２種類の切欠部１３、１３Ａを形成した基材マット１０Ａを用い、図７（ｂ）に示すように、基材マット１０Ａに対して紐状人工芝２０を例えば６０°の角度を付けて交差するように取り付けたることができる。 The arrangement layout of the string-like artificial turf 20 with respect to the base mat 10 can be attached so that one string-like artificial turf 20 crosses the unit cell 14 diagonally as shown in FIG. One string-like artificial grass 20 can be attached to every other unit cell or every other unit cell 14 so as to cross diagonally. Further, as shown in FIG. 7A, the string-like artificial turf 20 is attached to the base mat 10 in, for example, a wave shape, attached so as to imitate characters or symbols, or a guidance display in a parking lot or the like. It can be attached to imitate. However, when used for guidance, the string-like artificial turf 20 may be a color different from a normal lawn, for example, white, so that the display is easy to see. Further, as shown in FIG. 8, instead of the base mat 10, a base mat 10 </ b> A in which two types of notches 13 and 13 </ b> A having different depths are formed, and as shown in FIG. The string-like artificial turf 20 can be attached to the material mat 10A so as to intersect, for example, at an angle of 60 °.

尚、図９に示すように、切欠部１３の上部にフック部３０を形成し、紐状基材２１を切欠部１３に嵌合させた状態で、このフック部３０が紐状基材２１の上端部に係合して、紐状人工芝２０を基材マット１０に一旦組み付けた状態で、紐状人工芝２０を基材マット１０から容易には引き抜けないように構成するとも好ましい実施の形態である。このように構成すると、悪戯などにより、紐状人工芝２０を引き抜こうとしても、紐状基材２１の上端部がフック部３０に係合して容易には抜き取ることができないので、このような悪戯を防止する上で好ましい。また、図１０に示すように、紐状基材２１の下側へ延びる人工芝３１を植設し、この人工芝３１を紐状基材２１の下側の客土２に埋設状に設けることで、紐状人工芝２０を容易には引き抜けないように構成することもできる。 As shown in FIG. 9, the hook portion 30 is formed on the upper portion of the cutout portion 13, and the hook portion 30 is connected to the cutout portion 13 in the state where the hook-like base material 21 is fitted to the cutout portion 13. It is also preferable that the string-like artificial turf 20 is configured not to be easily pulled out from the substrate mat 10 in a state where the string-like artificial turf 20 is once assembled to the substrate mat 10 by engaging with the upper end portion. It is a form. If comprised in this way, even if it tries to pull out the string-like artificial turf 20 by mischief etc., since the upper end part of the string-like base material 21 engages with the hook part 30, it cannot be easily pulled out. It is preferable in preventing mischief. Further, as shown in FIG. 10, an artificial turf 31 extending below the string-like base material 21 is planted, and the artificial turf 31 is embedded in the customer soil 2 below the string-like base material 21. Thus, the string-like artificial turf 20 can be configured not to be pulled out easily.

基材マット１０の単位面積当たりに取り付ける紐状人工芝２０の長さ、つまり天然芝３と人工芝２２との混合割合は任意に設定することができる。例えば、駐車場に施工する芝生施工構造１では、日当たりの良くない部位や、車両が頻繁に出入りする部位、車両の駐車部位などのように、天然芝３の生育条件があまり良くない部位に関しては、他の部位と比較して天然芝３の生育が遅れたり、天然芝３が枯れたりし易いので、人工芝２２の混合割合を他の部位と比較して高く設定し、天然芝３の生育遅れや枯れによる芝生の景観や意匠性の低下を防止することが好ましい。 The length of the string-like artificial turf 20 attached per unit area of the base mat 10, that is, the mixing ratio of the natural turf 3 and the artificial turf 22 can be arbitrarily set. For example, in the lawn construction structure 1 constructed in a parking lot, with respect to a part where the growth condition of the natural lawn 3 is not so good, such as a part with poor sunlight, a part where a vehicle frequently enters and exits, a part where a vehicle is parked, Since the growth of the natural turf 3 is delayed or the natural turf 3 is likely to wither compared to other parts, the mixing ratio of the artificial turf 22 is set higher than the other parts and the natural turf 3 is grown. It is preferable to prevent the lawn landscape and the design from being deteriorated due to delay or withering.

基材マットと紐状人工芝の分解状態での斜視図Perspective view of base mat and string-shaped artificial turf in exploded state 基材マット及びそれに組み付けた紐状人工芝の平面図Plan view of base mat and string-like artificial turf assembled to it 基材マットの平面図Plan view of base mat （ａ）〜（ｅ）は図３のIV-IV線断面での芝生施工構造の施工方法の説明図(A)-(e) is explanatory drawing of the construction method of the lawn construction structure in the IV-IV line cross section of FIG. 図４（ｅ）のV-V線断面図Sectional view taken along line V-V in Fig. 4 (e) （ａ）は紐状基材の斜視図、（ｂ）（ｃ）は他の構成の紐状基材の斜視図(A) is a perspective view of a string-like base material, (b) (c) is a perspective view of a string-like base material of another configuration. (ａ)（ｂ）は紐状人工芝の他の配設レイアウトの説明図(a) (b) is explanatory drawing of other arrangement | positioning layouts of string-like artificial grass 図７（ｂ）の他の配設レイアウトのときに用いる基材マットの斜視図FIG. 7B is a perspective view of a base mat used in another arrangement layout. （ａ）（ｂ）は他の構成の基材マットの説明図(A) (b) is explanatory drawing of the base material mat of another structure. 他の構成の紐状人工芝の説明図Explanatory drawing of string-like artificial turf with other configurations

Explanation of symbols

１芝生施工構造２客土
３天然芝４地盤
５アンカーピン
１０基材マット１１空洞部
１２区画壁１３切欠部
１４単位セル１５支柱部
１６補強部１７開口
１８底板１９空間
２０紐状人工芝２１紐状基材
２２人工芝２３溝部
２４葉束２５針
１０Ａ基材マット２１Ａ紐状基材
２１Ｂ紐状基材３０フック部
３１人工芝
DESCRIPTION OF SYMBOLS 1 Lawn construction structure 2 Site 3 Natural turf 4 Ground 5 Anchor pin 10 Base mat 11 Cavity part 12 Partition wall 13 Notch part 14 Unit cell 15 Strut part 16 Reinforcement part 17 Opening 18 Bottom plate 19 Space 20 String-like artificial turf 21 String Substrate 22 artificial grass 23 groove 24 leaf bundle 25 needle 10A substrate mat 21A string substrate 21B string substrate 30 hook 31 artificial grass

Claims

A honeycomb-shaped substrate mat having a plurality of hollow portions extending in the thickness direction, and a string-shaped artificial turf formed by planting artificial turf on an elongated string-shaped substrate,
A notch is formed in the upper part of a partition wall arranged between adjacent cavities in the base mat, and the string-like artificial turf is fitted and fixed to the notch, and the string-like artificial turf is fixed to the base. By providing over a plurality of cavities of the mat, artificial grass was planted on the base mat, and the natural turf was planted by filling the hollow portion of the base mat with soil.
Lawn construction structure characterized by that.

The lawn construction structure according to claim 1, wherein the string-like artificial turf is formed by planting artificial turf on an elongated string-like base material having a groove portion capable of storing water.

The lawn construction structure according to claim 1 or 2, wherein the string-like substrate is made of an extruded product having a U-shaped, Y-shaped or H-shaped cross section.

The uneven | corrugated fitting part for preventing that a string-like artificial turf is pulled out from a base mat in the fitting part of the said string-like artificial turf and a base mat is provided in any one of Claims 1-3. Lawn construction structure.

The lawn construction structure according to any one of claims 1 to 4, wherein an anchor portion extending downward is formed on a string-like base material of the string-like artificial turf.

The lawn construction structure according to any one of claims 1 to 5, wherein a mixing ratio of the natural turf and the artificial turf is adjusted according to the growth conditions of the natural turf.