JPH0921054A - Structure of connected three-dimensional network - Google Patents
Structure of connected three-dimensional networkInfo
- Publication number
- JPH0921054A JPH0921054A JP17205995A JP17205995A JPH0921054A JP H0921054 A JPH0921054 A JP H0921054A JP 17205995 A JP17205995 A JP 17205995A JP 17205995 A JP17205995 A JP 17205995A JP H0921054 A JPH0921054 A JP H0921054A
- Authority
- JP
- Japan
- Prior art keywords
- dimensional
- dimensional net
- thin
- filament
- net body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は複数の立体網状体をその
端部同志で連結してなる連結構造物に関し、さらに詳し
くは、立体網状体を所望の大きさに広面積化することが
可能で、かつ連結部の強度がすぐれた立体網状体の連結
構造物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure in which a plurality of three-dimensional nets are connected to each other at their ends, and more specifically, the three-dimensional net can be expanded to a desired size. In addition, the present invention relates to a three-dimensional net-like connected structure having excellent strength at the connecting portion.
【０００２】本発明は、合成樹脂からなる多数のループ
状フィラメントが、不規則に交絡し相互の交絡点が融着
してなる立体網状体であって、フィラメントが立体的に
交絡してポーラスな網状構造を備えているので、例えば
緑化補助材や法面保護材などの土木用資材、濾過材など
の排水用資材、クッション材などの緩衝材用資材、各種
水産資材、水質浄化資材および各種固形物保持用資材な
どの用途に於いて広い面積で一体で使用する場合に適し
た性能を有する幅継立体網状体に関するものである。The present invention is a three-dimensional network body in which a large number of loop-shaped filaments made of synthetic resin are irregularly entangled and the points of entanglement are fused to each other. As it has a mesh structure, it can be used for civil engineering materials such as greening aids and slope protection materials, drainage materials such as filtration materials, cushioning materials such as cushioning materials, various marine products, water purification materials and various solid materials. The present invention relates to a width joint three-dimensional reticulate body having suitable performance when used integrally as a material holding material in a wide area.
【０００３】[0003]
【従来の技術】合成樹脂からなる多数のループ状フィラ
メントが、不規則に交絡し相互の交絡点が融着してなる
立体網状体は、そのポーラスな網状構造を活用した種々
の用途、例えば土木用資材、排水用資材、緩衝材用資
材、水産資材、水質浄化資材および固形物保持用資材な
どの各種用途に対し、従来から広く用いられている。2. Description of the Related Art A three-dimensional net body in which a large number of loop-shaped filaments made of synthetic resin are randomly entangled with each other and the entanglement points are fused to each other is used in various applications such as civil engineering. It has been widely used for various purposes such as materials for use in water, materials for drainage, materials for cushioning materials, materials for marine products, materials for purifying water and materials for holding solids.
【０００４】ところで、上記立体網状体の各種用途にお
いては、立体網状体を大きなサイズのものとして使用す
る場合が多いが、幅が広い大きなサイズの立体網状体を
一体で製造するためには、大型の設備が必要になること
からあまり得策ではない。By the way, in various uses of the above-mentioned three-dimensional net body, the three-dimensional net body is often used as a large size one, but in order to integrally manufacture a wide three-dimensional net body of a large size, a large size one is required. It is not a good idea because it requires the equipment of.
【０００５】加えて、幅の広い大きなサイズの立体網状
体は、それ自体を運搬したり、施工する作業が容易でな
いため、通常は、小さなサイズの立体網状体の端部同志
を突合わせるか、または立体網状体の端部同志を重ね合
わせることにより連結し、広面積化して実用に供してい
る。In addition, since a wide and large-sized three-dimensional net body is not easy to carry and install itself, normally, the ends of the small-sized three-dimensional net body are abutted to each other, or Alternatively, the end portions of the three-dimensional net-like body are overlapped with each other to be connected to each other to have a large area for practical use.
【０００６】しかるに、立体網状体は、合成樹脂フィラ
メントを集積してポーラスに成形したものであるため、
立体網状体の端部同志を突合わせ或いは重ね合わせるこ
とにより形成した連結部は、何本かのループ状に曲りく
ねったフィラメントの連結で構成されることになる。[0006] However, since the three-dimensional net body is formed by accumulating synthetic resin filaments into a porous shape,
The connecting portion formed by abutting or superposing the end portions of the three-dimensional net body on each other is formed by connecting a plurality of loop-shaped filaments.
【０００７】したがって、従来の連結構造では、固定方
法によっては連結部が簡単に分離して隙間を生ずること
があり、また立体網状体の端部部分を重ね合わせると、
その部分が盛り上がって段差状になったり、重ね合わせ
た部分にフィラメントが食い込んで連結部が容易に破壊
したりするなどの不具合を招くことから、連結部の強度
が劣ることが問題となっており、このために連結構造物
の実用には多くの制限があった。Therefore, in the conventional connecting structure, depending on the fixing method, the connecting portion may be easily separated to form a gap, and when the end portions of the three-dimensional net body are overlapped,
Inferior strength of the connection part is a problem because it causes problems such as that part rising and becoming stepped, or filaments biting into the overlapped part and breaking the connection part easily. However, there are many restrictions on the practical use of the connecting structure.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、上述した従
来技術における問題点の解決を課題として検討した結果
達成されたものである。SUMMARY OF THE INVENTION The present invention has been achieved as a result of studying to solve the problems in the prior art described above.
【０００９】したがって、本発明の目的は、立体網状体
を所望の大きさに広面積化することが可能で、かつ連結
部の強度がすぐれた立体網状体の連結構造物を提供する
ことにある。Therefore, it is an object of the present invention to provide a three-dimensional reticulated body connecting structure which is capable of widening a three-dimensional reticulated body to a desired size and has excellent strength of a connecting portion. .
【００１０】[0010]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の立体網状体の連結構造物は、合成樹脂か
らなる多数のループ状フィラメントが、不規則に交絡し
相互の交絡点が融着してなる立体網状体を製造するに際
し、この立体網状体の少なくとも一端部に、本体部より
も前記ループ状フィラメントを高密度化した薄肉部を形
成し、この立体網状体の複数個を、前記薄肉部を介して
連結したことを特徴とする。In order to achieve the above object, the three-dimensional reticulated structure of the present invention has a structure in which a large number of loop-shaped filaments made of synthetic resin are randomly entangled with each other and entangled with each other. When producing a three-dimensional net body formed by fusion bonding, at least one end portion of the three-dimensional net body is formed with a thin portion in which the loop-shaped filament is densified more than the main body portion, and a plurality of the three-dimensional net body is formed. Are connected through the thin portion.
【００１１】[0011]
【作用】本発明の立体網状体の連結構造物は、各立体網
状体の一端部に形成した高密度な薄肉部を連結部とする
ため、連結部の強度が向上し、また薄肉部同志を重ね合
わせる場合に、フィラメントが互いに食い込む問題を防
止することができる。In the connecting structure of the three-dimensional net body of the present invention, since the high density thin-walled portion formed at one end of each three-dimensional net body is used as the connecting portion, the strength of the connecting portion is improved, and the thin-walled portions are connected to each other. When overlapping, the problem that the filaments bite into each other can be prevented.
【００１２】また、薄肉部を連結部とすることによっ
て、これら薄肉部同志を重ね合わせるか、さらに連結部
分に連結板を配置した場合においても、連結部に段差を
生じることがなく、表面が平坦でかつ所望のサイズに広
面積化した立体網状体連結構造物を容易に形成すること
が可能である。Further, by using the thin-walled portions as the connecting portions, even when the thin-walled portions are overlapped with each other or a connecting plate is arranged at the connecting portions, no step is formed in the connecting portions and the surface is flat. In addition, it is possible to easily form a three-dimensional netted body connected structure having a wide area of a desired size.
【００１３】[0013]
【実施態様】以下、図面を参照しつつ、本発明の立体網
状体の連結構造物の実施例について説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the three-dimensional network connecting structure of the present invention will be described below with reference to the drawings.
【００１４】図１は本発明の立体網状体の連結構造物の
第１実施例を示す断面図、図２は同じく第２実施例を示
す断面図、図３は同じく第３実施例を示す断面図、図４
は連結に供する立体網状体の一例を示す端部斜視図、図
５は連結に供する立体網状体の製造装置の一例を示す概
要説明図である。FIG. 1 is a sectional view showing a first embodiment of a three-dimensional network connecting structure of the present invention, FIG. 2 is a sectional view showing the same second embodiment, and FIG. 3 is a sectional view showing a third embodiment. Figure, Figure 4
FIG. 5 is an end perspective view showing an example of a three-dimensional net body used for connection, and FIG. 5 is a schematic explanatory view showing an example of an apparatus for manufacturing a three-dimensional net body used for connection.
【００１５】まず本発明の立体網状体の連結構造物の構
成について説明し、次いでこれを構成する個々の立体網
状体１について説明する。First, the structure of the three-dimensional network connecting structure of the present invention will be described, and then the individual three-dimensional network 1 constituting the structure will be described.
【００１６】図１に示した第１実施例において、本発明
の立体網状体の連結構造物（以下、単に連結構造物と呼
ぶ）は、これを構成する個々の立体網状体１の複数個を
連結部４を介して連結したものである。In the first embodiment shown in FIG. 1, the connecting structure of the three-dimensional net body of the present invention (hereinafter, simply referred to as the connecting structure) comprises a plurality of individual three-dimensional net bodies 1 constituting the same. It is connected through the connecting portion 4.
【００１７】この個々の立体網状体１は、図４に示すよ
うに、立体網状体１の少なくとも一端に、本体部２より
フィラメント５が高密度に存在する薄肉部３を形成した
ものであり、この薄肉部３の周縁を連結部４としたもの
である。As shown in FIG. 4, each of the three-dimensional reticulated bodies 1 has a thin-walled portion 3 in which the filaments 5 are present at a higher density than the main body 2, at at least one end of the three-dimensional reticulated body 1. The peripheral edge of the thin portion 3 is used as the connecting portion 4.
【００１８】すなわち、この第１実施例で使用する個々
の立体網状体１における連結部４は、図４に示したよう
に、薄肉部３の周縁に突起部３ａと凹部３ｂを交互に形
成することによって、個々の立体網状体１を連結する際
に、これら突起部３ａと凹部３ｂとを相互に嵌合する機
構を付与したものであり、これによって連結部４は、他
の固定処理を必要とせずとも、相互のずれを防止して、
高強度の連結部を構成することができる。That is, as shown in FIG. 4, the connecting portion 4 of the individual three-dimensional net body 1 used in the first embodiment has the thin portion 3 on which the protrusions 3a and the recesses 3b are alternately formed. By this, when connecting the individual three-dimensional net-like bodies 1, a mechanism for fitting the projections 3a and the recesses 3b with each other is provided, whereby the connecting portion 4 requires another fixing process. Even if you do not do, prevent mutual deviation,
A high-strength connecting portion can be formed.
【００１９】なお、薄肉部３の幅は１０ｍｍ〜１００ｍ
ｍ程度であればよく、これ以上にすると連結部の固定は
容易になるが、本体部の割合が小さくなるので望ましく
ない。The thin portion 3 has a width of 10 mm to 100 m.
If it is more than m, it is easy to fix the connecting portion, but the proportion of the main body portion becomes small, which is not desirable.
【００２０】また、個々の立体網状体１の端部に形成す
る肉薄部３の形状は、次の第２および第３実施例に示す
ように平面状であってもよい。Further, the shape of the thin portion 3 formed at the end of each three-dimensional net body 1 may be flat as shown in the second and third embodiments below.
【００２１】すなわち、図２に示した第２実施例は、薄
肉部３を平坦状に形成した３個の立体網状体１ａ，１
ｂ，１ｃを連結するに際し、中央の立体網状体１ｂは両
端に薄肉部３を形成しておき、各薄肉部３同志により形
成される連結部４の連結を強固にするために、立体網状
体１ａと１ｂとの間の連結部４には粘着テープ６を用い
て接着固定し、立体網状体１ｂと１ｃとの間の連結部４
には針金７を用いて係止固定している。That is, in the second embodiment shown in FIG. 2, the three-dimensional net-like bodies 1a, 1 having the thin portion 3 formed in a flat shape.
When connecting b and 1c, the central three-dimensional net-like body 1b has thin-walled portions 3 formed at both ends, and the three-dimensional net-like body is formed in order to strengthen the connection of the connecting portions 4 formed by the thin-walled portions 3 each other. An adhesive tape 6 is used to bond and fix the connecting portion 4 between the 1a and 1b, and the connecting portion 4 between the three-dimensional mesh bodies 1b and 1c.
The wire 7 is locked and fixed by using a wire 7.
【００２２】図３は、肉薄部３同志を突き合わせて、こ
の突き合わせ部に連結板８を配置して連結したものであ
る。この連結部４をより強固に固定するために接着固定
または係止固定することも好ましい。In FIG. 3, the thin portions 3 are butted to each other, and a connecting plate 8 is arranged at the butted portion and connected. In order to more firmly fix the connecting portion 4, it is also preferable to perform adhesive fixing or locking fixing.
【００２３】上記のように連結部４は、重ね合わせる
か、突き合わせて連結板８を配置することで連結すれば
よいが、より強固に固定するために、接着剤、粘着剤な
どを使用したり融着などの方法により接着固定したり、
或いは紐、バンドなどで結束したり鉤、釘などを使用し
て係止固定することも好ましい。As described above, the connecting portions 4 may be connected by placing them on top of each other or by arranging the connecting plates 8 butting them together. However, in order to fix them more firmly, an adhesive agent, an adhesive agent, or the like may be used. Adhesive fixing by methods such as fusion,
Alternatively, it is also preferable to bind with a string, a band or the like, or to lock and fix using a hook, a nail or the like.
【００２４】上記第３実施例のように、連結板８を使用
する場合は、合成樹脂、金属、繊維・粉末の固結体、木
などの板、またはシートなどからなる連結板でよく、そ
の形状は薄肉部３の形状と噛み合わせ構造にすることが
好ましい。When the connecting plate 8 is used as in the third embodiment, it may be a connecting plate made of synthetic resin, metal, a solidified body of fibers / powder, a plate of wood, or the like. It is preferable that the shape is such that it meshes with the shape of the thin portion 3.
【００２５】また、本発明の連結構造物は、個々の立体
網状体が同じものを連結したものであってもよいが、用
途によっては、フィラメントの太さが異なる立体網状体
や、フィラメントの密度が異なる立体網状体などのよう
な品質が異なる立体網状体を混在して連結して連結構造
物としてもよい。The connection structure of the present invention may be one in which the same individual three-dimensional nets are connected, but depending on the application, the three-dimensional nets having different filament thicknesses and the density of the filaments. 3D nets having different qualities such as different 3D nets may be mixed and connected to form a connected structure.
【００２６】なお、本発明の連結構造物の厚さは特に制
限しないが、通常は５ｍｍ以上の厚みを有するものが好
ましく、連結に供する個々の立体網状体の厚さによって
規定される。The thickness of the connecting structure of the present invention is not particularly limited, but it is usually preferable that the connecting structure has a thickness of 5 mm or more, and it is defined by the thickness of each three-dimensional net body to be connected.
【００２７】さらに、薄肉部３の厚さもとくに制限する
ものではないが、立体網状体の本体部分の厚さより小さ
いことが必須である。Further, the thickness of the thin portion 3 is not particularly limited, but it is essential that it is smaller than the thickness of the main body portion of the three-dimensional net body.
【００２８】本発明の連結構造物を実用に供するには、
個々の立体網状体をあらかじめ連結して作成した連結構
造物を実用に供することもよく、また実用に供するとき
に個々の立体網状体を現場で連結して連結構造物を作成
してもよい。In order to put the connected structure of the present invention into practical use,
The connected structure prepared by connecting the individual three-dimensional nets in advance may be put to practical use, or when the three-dimensional nets are put to practical use, the three-dimensional nets may be connected on site to form the connected structure.
【００２９】次に、本発明の連結構造物を構成する個々
の立体網状体１について具体的に説明する。Next, the individual three-dimensional net bodies 1 constituting the connected structure of the present invention will be specifically described.
【００３０】個々の立体網状体１は、多数の細孔を有す
る紡糸口金から合成樹脂を溶融押出して、溶融フィラメ
ント束を自然落下させこの落下速度よりも遅い速度で引
取りながら冷却・固化せしめることにより、合成樹脂か
らなる多数のループ状フィラメントが、不規則に交絡し
相互の交絡点が融着してなる立体網状体を基本構造とす
るものである。そして、図４に示す通り本体部分２の少
なくとも一端に肉薄部３を形成したことを特徴とするも
のである。The individual three-dimensional reticulated body 1 is obtained by melt-extruding a synthetic resin from a spinneret having a large number of pores, allowing the molten filament bundle to spontaneously drop, and cooling and solidifying while taking it at a speed slower than this falling speed. As a result, the basic structure is a three-dimensional network body in which a large number of loop-shaped filaments made of synthetic resin are randomly entangled and the entanglement points are fused to each other. Then, as shown in FIG. 4, a thin portion 3 is formed on at least one end of the main body portion 2.
【００３１】本発明において、立体網状体を構成するフ
ィラメントを形成するために用いる合成樹脂としては、
ナイロン６、ナイロン６６、ナイロン６１０、ナイロン
６１２、ナイロン１１、ナイロン１２およびこれらの相
互共重合体やブレンド物などのポリアミド、各種ポリア
ミドエラストマー、ポリエチレンテレフタレート、ポリ
ブチレンテレフタレート、ポリエチレンナフタレートお
よびこれらの相互共重合体またはブレンド物などのポリ
エステル、各種ポリエステルエラストマー、ポリエチレ
ン、ポリプロピレン、ポリブテン、これらの共重合体、
エチレン／酢酸ビニル共重合体、エチレン／アクリル酸
共重合体、エチレン／メタクリル酸共重合体、エチレン
／アクリル酸エステル共重合体、エチレン／メタクリル
酸エステル共重合体、エチレン系アイオノマー、オレフ
ィン系エラストマー、塩素化ポリエチレン、各種変性ポ
リオレフィンおよびこれらの混合物などのポリオレフィ
ン系ポリマ、軟質・硬質のポリ塩化ビニル、ポリ塩化ビ
ニリデン、ポリフッ化ビニリデンおよびエチレン／テト
ラフルオロエチレン共重合体などのハロゲン化ビニル系
ポリマ、ポリビニルアルコール、ポリ酢酸ビニル、ポリ
ウレタン、スチレン系樹脂、ポリアセタ−ル系樹脂、ポ
リカ−ボネ−ト系樹脂、ポリフェニレンサルファイド系
樹脂などの熱可塑性合成樹脂が挙げられ、これらの合成
樹脂は、着色剤、可塑剤、耐熱剤、耐候剤、難燃剤、発
泡剤、滑剤、増量剤、強化材および砥材などの添加剤を
任意に含有することができる。In the present invention, as the synthetic resin used to form the filaments forming the three-dimensional network,
Polyamides such as Nylon 6, Nylon 66, Nylon 610, Nylon 612, Nylon 11, Nylon 12 and their mutual copolymers and blends, various polyamide elastomers, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate and their mutual co-polymers. Polyester such as polymers or blends, various polyester elastomers, polyethylene, polypropylene, polybutene, copolymers thereof,
Ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene / methacrylic acid copolymer, ethylene / acrylic acid ester copolymer, ethylene / methacrylic acid ester copolymer, ethylene ionomer, olefin elastomer, Polyolefin polymers such as chlorinated polyethylene, various modified polyolefins and mixtures thereof, soft / hard polyvinyl chloride, polyvinylidene chloride, polyvinylidene fluoride and vinyl halide polymers such as ethylene / tetrafluoroethylene copolymer, polyvinyl Alcohol, polyvinyl acetate, polyurethane, styrene-based resins, polyacetal-based resins, polycarbonate-based resins, thermoplastic synthetic resins such as polyphenylene sulfide-based resins and the like, these synthetic resins, colorants, Plasticizers, heat stabilizers, weathering agents, flame retardants, blowing agents, lubricants, bulking agents, may optionally contain additives such as reinforcing material and abrasive.
【００３２】ループ状フィラメントのフィラメント直径
は通常０．１〜３ｍｍの範囲であり、その断面形状は円
形、多角形、多葉形およびこれらの偏平形などが挙げら
れるが特に制限されない。また、ル−プの曲率半径は、
立体網状体の厚さにもよるが、通常は１〜２０ｍｍ程度
が適当である。The filament diameter of the loop-shaped filament is usually in the range of 0.1 to 3 mm, and its cross-sectional shape may be circular, polygonal, multilobal, or flat shape thereof, but is not particularly limited. The radius of curvature of the loop is
Although it depends on the thickness of the three-dimensional net body, normally about 1 to 20 mm is suitable.
【００３３】上記立体網状体において、連結部４となる
薄肉部３は、本体部分２のフィラメントの密度より高密
度であることが重要であり、薄肉部３のフィラメントの
密度が本体部分の１．１〜５倍であることが好ましい。In the above three-dimensional net body, it is important that the thin wall portion 3 serving as the connecting portion 4 has a higher density than the filament density of the main body portion 2, and the thin wall portion 3 has a filament density of 1. It is preferably 1 to 5 times.
【００３４】薄肉部３のフィラメント密度が１．１倍未
満では、連結部の相互の接触面でのフィラメントの接触
点が少ないために、僅かな力がかかると接触面にずれを
生じ、連結部がはずれて連結構造物を形成することがで
きず、またたとえ連結部を接着、係止して固定しても、
固定点が容易に破壊する問題を招くため好ましくない。
また、立体網状体の端の部分を重ね合わせると、重ね合
わせた部分にフィラメントが食い込んで連結部が破壊す
るなどの使用上に問題を生ずることがある。When the filament density of the thin portion 3 is less than 1.1 times, the contact points of the filaments on the mutual contact surfaces of the connecting portion are small, and therefore a slight force causes the contact surface to be displaced, resulting in the connecting portion. Can not be separated to form a connected structure, and even if the connecting part is glued, locked and fixed,
It is not preferable because it causes a problem that the fixing point is easily broken.
In addition, when the end portions of the three-dimensional net-like body are overlapped with each other, a filament may bite into the overlapped portion to break the connecting portion, which may cause a problem in use.
【００３５】一方、薄肉部３のフィラメント密度が５倍
を越えると、立体網状体自体の本体部２と薄肉部３の付
け根で破壊する傾向が招かれるため好ましくない。On the other hand, if the filament density of the thin portion 3 exceeds 5 times, the tendency to break at the base of the main body portion 2 and the thin portion 3 of the three-dimensional net body itself is not preferable.
【００３６】薄肉部３の形成は、溶融フィラメントがル
ープを形成する過程でこのループを押え込むことによ
り、本体部２よりもフィラメントを高密度化かつ薄肉化
することにより行われる。The thin-walled portion 3 is formed by pressing the loop in the process of forming the loop by the molten filament to make the filament denser and thinner than the main body 2.
【００３７】このようにすることことによって、フィラ
メントを高密度化した薄肉部３が容易に形成できるばか
りか、押さえ込んだ面が平滑な面を形成するとともに、
フィラメントの交絡点が強固に融着する利点がえられ
る。By doing so, not only the thin-walled portion 3 in which the filament is densified can be easily formed, but also the pressed surface forms a smooth surface, and
The advantage is that the entanglement points of the filaments are firmly fused.
【００３８】薄肉部３を形成する他の方法としては、溶
融フィラメントが吐出する口金の孔の配置を設定する方
法、あらかじめ形成した立体網状体を熱プレスなどで加
工する方法などがあげられるが、これらの方法では、本
体部２よりフィラメントを高密度化すると同時に薄肉部
を形成することが困難であったり、特別な加工装置を必
要とするなどの問題があるため好ましくない。Other methods of forming the thin portion 3 include a method of setting the arrangement of holes in the die for discharging the molten filament, and a method of processing a preformed three-dimensional net body with a hot press or the like. These methods are not preferable because there are problems that it is difficult to form the thin portion at the same time as densifying the filament from the main body portion 2 and a special processing device is required.
【００３９】次に、本発明の連結構造物を構成する個々
の立体網状体の製造方法について説明する。Next, a method for producing each of the three-dimensional net bodies constituting the connected structure of the present invention will be described.
【００４０】図５は、図４に示す立体網状体１を製造す
る方法の一実施例であり、１１は溶融ポリマ、１０は紡
糸口金、１２は紡糸口金から押出された溶融フィラメン
ト束、１３は冷却水槽、１３ａは冷却水面、１４は溶融
フィラメント束の落下速度よりも遅い速度に調整した引
取装置を示す。FIG. 5 shows an embodiment of a method for producing the three-dimensional net body 1 shown in FIG. 4, 11 is a molten polymer, 10 is a spinneret, 12 is a molten filament bundle extruded from the spinneret, and 13 is A cooling water tank, 13a is a cooling water surface, and 14 is a take-up device adjusted to a speed slower than the falling speed of the molten filament bundle.
【００４１】引取装置１４には、薄肉部３を形成させる
ための押圧具１５が取付けてある。この押圧具１５は他
の部位より高さを高くしてあり、本実施例では部分的に
凹み部１５´を設けたものである。この凹み部１５´に
より、立体網状体の薄肉部３自体に付与する突起部３ａ
が形成される。なお、この凹み部１５´は、必要に応じ
て設けれはよい。The take-up device 14 is fitted with a pressing tool 15 for forming the thin portion 3. The pressing tool 15 has a height higher than that of other parts, and in this embodiment, a depression 15 'is partially provided. With this recess 15 ', the protrusion 3a provided to the thin portion 3 itself of the three-dimensional net body.
Is formed. The recess 15 'may be provided if necessary.
【００４２】そして、上記紡糸口金１０は、立体網状体
１の幅と本体部分の厚みの断面形状にほぼ等しい形状
に、直径０．１〜５ｍｍ程度の細孔を多数配置し、溶融
ポリマ１１を押出して溶融フィラメント束１２を自然落
下させる。In the spinneret 10, a large number of pores having a diameter of 0.1 to 5 mm are arranged in a shape substantially equal to the sectional shape of the width of the three-dimensional net body 1 and the thickness of the main body portion, and the molten polymer 11 is formed. The molten filament bundle 12 is extruded and naturally falls.
【００４３】押出された溶融フィラメント束１２は、そ
れらが未だに未固化状態、すなわち溶融または半溶融状
態にあるうちに、紡糸口金の下方に配置された捕集部と
しての冷却水槽１３および引取装置１４によって、その
落下速度よりも遅い速度で引取られることにより、交絡
を与えられてループ状フィラメント５を形成し、かつ相
互の接点で自己融着して立体網状体を形成する。この
際、引取装置１４に取り付けてある押圧具１５の作用に
よって、溶融フィラメントがループを形成する過程でこ
のループが押え込まれ、本体部２よりもフィラメントが
高密度化するとともに薄肉部３が形成される。The extruded molten filament bundle 12 has a cooling water tank 13 and a take-off device 14 as a collecting portion arranged below the spinneret while they are still in a non-solidified state, that is, in a molten or semi-molten state. By being drawn at a slower speed than the falling speed thereof, the loop filament 5 is formed by being entangled with each other, and self-fused at mutual contact points to form a three-dimensional net body. At this time, due to the action of the pressing tool 15 attached to the take-up device 14, this loop is pressed in the process of forming the loop of the molten filament, the filament becomes denser than the main body 2, and the thin portion 3 is formed. To be done.
【００４４】そして、押圧具１５の高さを適宜設定する
ことによって、薄肉部３のフィラメントの密度を、本体
部分の１．１〜５倍の任意の範囲に調整することができ
る。この際、水以外の液体を冷却液に使用しても差支え
なく、また界面活性剤を添加して冷却液の表面張力を調
整することもできる。By appropriately setting the height of the pressing member 15, the filament density of the thin portion 3 can be adjusted to an arbitrary range of 1.1 to 5 times that of the main body portion. At this time, a liquid other than water may be used as the cooling liquid, and a surfactant may be added to adjust the surface tension of the cooling liquid.
【００４５】なお、多数の細孔の直径は、同一であって
も、差をもたせてあっても差支えなく、また溶融フィラ
メント束は落下するあいだに加温または空冷したり、気
流を当てて溶融フィラメントを揺動しても差支えない。It should be noted that the diameters of a large number of pores may be the same or different, and the molten filament bundle may be heated or air-cooled while falling, or may be melted by applying an air stream. It does not matter if the filament is rocked.
【００４６】なお、引取装置１４の引取り速度は、溶融
フィラメント束１２の落下速度より遅い速度に設定する
ことが必須であるが、溶融フィラメント束１２の落下速
度と得られる立体網状体の品質などによって決定さる。It is essential that the take-up speed of the take-up device 14 is set to be slower than the falling speed of the molten filament bundle 12, but the falling speed of the molten filament bundle 12 and the quality of the obtained three-dimensional reticulate body, etc. Determined by
【００４７】また、引取装置１４としては、引取ローラ
を図示したが、ローラの代わりにベルトコンベアなども
使用することができる。As the take-up device 14, a take-up roller is shown, but a belt conveyor or the like can be used instead of the roller.
【００４８】以下に、実施例を挙げて、本発明の構成お
よび効果についてさらに詳述する。The constitution and effects of the present invention will be described in more detail below with reference to examples.
【００４９】[0049]
【実施例１】図５に示した装置において、幅方向６００
ｍｍ、厚み方向３０ｍｍ中に、孔径１ｍｍの細孔１５０
孔を配置した紡糸口金１０を用い、この紡糸口金１０か
ら、２５０℃で溶融したポリプロピレンを溶融押出する
ことにより、１５０本の溶融フィラメント束を自然落下
させた。[Embodiment 1] In the apparatus shown in FIG.
mm, 30 mm in the thickness direction, 150 pores with a diameter of 1 mm
Using the spinneret 10 in which the holes were arranged, polypropylene melted at 250 ° C. was melt-extruded from the spinneret 10 to spontaneously drop 150 molten filament bundles.
【００５０】紡糸口金１０の下方には、一対のローラー
のうちの一方のローラーには幅５０ｍｍ，高さ１９ｍｍ
であって深さ１１ｍｍの凹み部を有する押圧具１５と、
他方のローラーには幅５０ｍｍ，高さ８ｍｍであって高
さ１１ｍｍの突起部を有する押圧具１６とを取り付けた
ニップローラを備えた冷却水槽を配置し、紡糸口金から
冷却水面までの距離を３０ｃｍとして、自然落下する溶
融フィラメント束を捕集し、冷却しながら、１５ｍ／分
の速度に調節したニップローラで引き取った。かくして
得られた立体網状体は、フィラメントの直径が０．６ｍ
ｍで大きさ約２０ｍｍのループが不規則に交絡し、かつ
相互の交絡点が自己融着した厚み３０ｍｍ、幅５００ｍ
ｍ立体網状体の本体部分を形成すると共に、本体部分の
一端は幅５０ｍｍ、厚さ８ｍｍ、高さ１１ｍｍの突起部
を有する薄肉部３と、他端はその反対面に幅５０ｍｍ、
厚さ１９ｍｍ、深さ１１ｍｍの凹み部を有する薄肉部３
が形成されたものである。Below the spinneret 10, one of the pair of rollers has a width of 50 mm and a height of 19 mm.
And a pressing tool 15 having a recess with a depth of 11 mm,
On the other roller, a cooling water tank equipped with a nip roller to which a pressing tool 16 having a width of 50 mm, a height of 8 mm and a height of 11 mm was attached was arranged, and the distance from the spinneret to the cooling water surface was set to 30 cm. The bundle of molten filaments that spontaneously dropped was collected and, while being cooled, was taken up by a nip roller adjusted to a speed of 15 m / min. The three-dimensional reticulate body thus obtained has a filament diameter of 0.6 m.
A loop with a size of about 20 mm at m is irregularly entangled, and the points of mutual entanglement are self-fused, thickness: 30 mm, width: 500 m
m While forming the main body of the three-dimensional net, one end of the main body has a thin portion 3 having a protrusion with a width of 50 mm, a thickness of 8 mm, and a height of 11 mm, and the other end has a width of 50 mm on the opposite surface,
Thin portion 3 having a recessed portion with a thickness of 19 mm and a depth of 11 mm
Is formed.
【００５１】この立体網状体のフィラメントの密度（単
位体積当たりのフィラメントの長さ）は、本体部分が１
３０ｋｍ／ｍ3 、一端側薄肉部が３９０ｋｍ／ｍ3 （本
体部の３倍）、他端側薄肉部が２３０ｋｍ／ｍ3 （本体
部の１．８倍）であった。The density (filament length per unit volume) of the filaments of this three-dimensional reticulate body is 1
The thickness was 30 km / m 3 , the thin portion on one end side was 390 km / m 3 (3 times as large as the main body portion), and the thin portion on the other end side was 230 km / m 3 (1.8 times as large as the main body portion).
【００５２】この立体網状体を長さ１０ｍに切断して５
枚の立体網状体とし、整地した地面に、この個々の５枚
の立体網状体の薄肉部を交互に重ね合わせて連結しなが
ら敷き込み、５枚をつなぎ合わせたサイズ２．８ｍ×１
０ｍの連結構造物とした。This three-dimensional reticulated body was cut into a length of 10 m, and 5
The three-dimensional net-like body is laid, and the thin-walled portions of the five individual three-dimensional net-like bodies are alternately stacked and connected to the ground that has been leveled, and the size is 2.8 m x 1 with the five pieces joined together.
The connection structure was 0 m.
【００５３】得られた連結構造物は、連結部に隙間を生
ずることなく、多少の横ずれする力がかかっても連結部
が分離することもなかった。In the obtained connecting structure, no gap was formed in the connecting portion, and the connecting portion was not separated even if a slight lateral displacement force was applied.
【００５４】[0054]
【実施例２】実施例１で得た立体網状体を長さ１０ｍに
切断して３枚の立体網状体とし、この個々の立体網状体
の薄肉部に、建築用に使用されるパテ剤を付与して順次
重ね合わせて連結して、幅１．７ｍの連結部を接着固定
した連結構造物を得た。この連結構造物をロール状に巻
き取って運搬し、その後、整地した地面に敷き込んだ。
連結部に隙間を生ずることなく、多少の横ずれする力が
かかっても連結部が分離することもなかった。[Example 2] The three-dimensional net body obtained in Example 1 was cut into a length of 10 m to form three three-dimensional net bodies, and the thin portion of each three-dimensional net body was covered with a putty agent used for construction. The applied structure was sequentially overlapped and connected to obtain a connected structure in which a connecting portion having a width of 1.7 m was adhesively fixed. This connection structure was wound into a roll and transported, and then laid on the leveled ground.
No gap was formed in the connecting portion, and the connecting portion was not separated even if a slight lateral displacement force was applied.
【００５５】[0055]
【実施例３】引取りローラーの一方のローラーの両側２
か所に、幅５０ｍｍ、高さ５ｍｍにした突起部、凹み部
をともに設けない押圧具を取り付けたほかは実施例１と
同様にして立体網状体を製造した。[Example 3] Both sides 2 of one of the take-up rollers
A three-dimensional reticulated body was manufactured in the same manner as in Example 1 except that a pressing tool having neither a protrusion nor a recess having a width of 50 mm and a height of 5 mm was provided in each place.
【００５６】得られた立体網状体は、両端の同じ面に、
厚さ２５ｍｍ、フィラメントの密度が１６０ｋｍ／ｍ3
の薄肉部を有するほかは、実施例１と同様な立体網状体
であった。ただし、薄肉部のフィラメントの密度は本体
部分の１．２倍である。The obtained three-dimensional net body has the same surface on both ends,
25mm thick, filament density 160km / m 3
The three-dimensional reticulate body was the same as in Example 1 except that it had a thin portion. However, the filament density in the thin portion is 1.2 times that in the main body.
【００５７】この立体網状体を長さ１０ｍに切断して５
枚の立体網状体とし、整地した地面に、この個々の５枚
の立体網状体の薄肉部の段差がある面を上にして突き合
わせて敷き込み、この突き合わせ部に、幅８０ｍｍ、厚
さ４ｍｍのプラスチック板を配置して、その上から地面
に達する長さの釘を適宜打ち込んで連結部を係止固定す
ることにより、５枚をつなぎ合わせたサイズ３ｍ×１０
ｍの連結構造物とした。This three-dimensional net body was cut into a length of 10 m, and 5
The three-dimensional net-like body is laid and laid on the ground that has been leveled with the stepped surface of the thin-walled portion of each of the five three-dimensional net-like bodies facing up, and at the butted part, a width of 80 mm and a thickness of 4 mm. A plastic plate is placed, and a nail of a length reaching the ground is appropriately driven from above, and the connecting portion is locked and fixed.
m of the connected structure.
【００５８】得られた連結構造物は、連結部に隙間を生
ずることなく、多少の横ずれする力がかかっても連結部
が分離することもなかった。In the obtained connecting structure, no gap was formed in the connecting portion, and the connecting portion was not separated even if a slight lateral displacement force was applied.
【００５９】[0059]
【発明の効果】以上説明したように、本発明の立体網状
体の連結構造物は、各立体網状体の一端部に形成した高
密度な薄肉部を連結部とするため、連結部の強度が向上
し、また薄肉部同志を重ね合わせる場合に、フィラメン
トが互いに食い込む問題を防止することができる。As described above, since the three-dimensional reticulated body connecting structure of the present invention uses the high-density thin-walled portion formed at one end of each three-dimensional reticulate body as the connecting section, the strength of the connecting section is high. Further, it is possible to prevent the problem that the filaments bite into each other when the thin-walled portions are overlapped with each other.
【００６０】また、薄肉部を連結部とすることによっ
て、これら薄肉部同志を重ね合わせるか、さらに連結部
分に連結板を配置した場合においても、連結部に段差を
生じることがなく、表面が平坦でかつ所望のサイズに広
面積化した立体網状体連結構造物を容易に形成すること
が可能である。Further, by using the thin-walled portions as the connecting portions, even when the thin-walled portions are stacked on each other or a connecting plate is further arranged at the connecting portions, no step is formed in the connecting portions and the surface is flat. In addition, it is possible to easily form a three-dimensional netted body connected structure having a wide area of a desired size.
【００６１】したがって、本発明の立体網状体の連結構
造物は、任意の広面積に形成可能で、しかも連結部の強
度および全体の強度バランスがすぐれており、変形や破
壊に対する耐久性が高いことから、例えば緑化補助材や
法面保護材などの土木用資材、濾過材などの排水用資
材、クッション材などの緩衝材用資材、各種水産資材、
水質浄化資材および各種固形物保持用資材などの各種用
途に好適に使用することができる。Therefore, the three-dimensional net-like connecting structure of the present invention can be formed in an arbitrary wide area, and the strength of the connecting portion and the overall strength balance are excellent, and the durability against deformation and breakage is high. , For example, civil engineering materials such as greening aids and slope protection materials, drainage materials such as filtration materials, cushioning materials such as cushioning materials, various marine products,
It can be suitably used for various purposes such as a water purification material and various solid material holding materials.
【図１】図１は本発明の立体網状体の連結構造物の第１
実施例を示す断面図である。FIG. 1 is a first view of a connecting structure of a three-dimensional net according to the present invention.
It is sectional drawing which shows an Example.
【図２】図２は同じく第２実施例を示す断面図である。FIG. 2 is a sectional view showing a second embodiment of the same.
【図３】図３は同じく第３実施例を示す断面図である。FIG. 3 is a sectional view showing a third embodiment of the same.
【図４】図４は連結に供する立体網状体の一例を示す端
部斜視図である。FIG. 4 is an end perspective view showing an example of a three-dimensional net body used for connection.
【図５】図５は連結に供する立体網状体の製造装置の一
例を示す概要説明図である。FIG. 5 is a schematic explanatory view showing an example of an apparatus for producing a three-dimensional net body for connection.
１ 立体網状体 ２ 本体部 ３ 薄肉部 ４ 連結板 １０ 紡糸口金 １１ 溶融ポリマ １２ フィラメント束 １４ 引取装置 １５ 押圧具 DESCRIPTION OF SYMBOLS 1 Three-dimensional net body 2 Main body part 3 Thin-walled part 4 Connecting plate 10 Spinneret 11 Molten polymer 12 Filament bundle 14 Pulling device 15 Pressing tool
Claims (4)
ントが、不規則に交絡し相互の交絡点が融着してなる立
体網状体を製造するに際し、この立体網状体の少なくと
も一端部に、本体部よりも前記ループ状フィラメントを
高密度化した薄肉部を形成し、この立体網状体の複数個
を、前記薄肉部を介して連結したことを特徴とする立体
網状体の連結構造物。1. When producing a three-dimensional net body in which a large number of loop-shaped filaments made of synthetic resin are irregularly entangled and fusion points of mutual entanglement are fused, at least one end of the three-dimensional net body is provided with a main body. A three-dimensional net-like connecting structure comprising a thin-walled portion in which the loop filaments are made higher in density than the thin-walled portion, and a plurality of the three-dimensional net-like bodies are connected through the thin-walled portion.
フィラメント密度の１．１〜５倍であることを特徴とす
る請求項１に記載の立体網状体の連結構造物。2. The three-dimensional reticulated structure according to claim 1, wherein the filament density of the thin portion is 1.1 to 5 times the filament density of the main body portion.
とにより、連結部を形成したことを特徴とする請求項１
または２に記載の立体網状体の連結構造物。3. The connecting portion is formed by superimposing thin-walled portions of a three-dimensional net body on top of each other.
Alternatively, the three-dimensional reticulated body connection structure according to item 2.
わせ部に連結板状体を配置することにより、連結部を形
成したことを特徴とする請求項１または２項に記載の立
体網状体の連結構造物。4. The three-dimensional net body according to claim 1, wherein the thin wall portions are abutted to each other, and the connecting plate is disposed in the abutting portion to form the connecting portion. Connected structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17205995A JPH0921054A (en) | 1995-07-07 | 1995-07-07 | Structure of connected three-dimensional network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17205995A JPH0921054A (en) | 1995-07-07 | 1995-07-07 | Structure of connected three-dimensional network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0921054A true JPH0921054A (en) | 1997-01-21 |
Family
ID=15934780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17205995A Pending JPH0921054A (en) | 1995-07-07 | 1995-07-07 | Structure of connected three-dimensional network |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0921054A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068967A1 (en) | 2000-03-15 | 2001-09-20 | C-Eng Co.,Ltd. | Three-dimensional net-like structure, and method and device for producing three-dimensional net-like structure |
| JP2007169835A (en) * | 2005-12-22 | 2007-07-05 | Unitica Fibers Ltd | Three-dimensional structure, artificial seaweed bed using the same and artificial fish-breeding reef |
| US8226882B2 (en) | 2000-03-15 | 2012-07-24 | C-Eng Co., Ltd. | Apparatus and method for manufacturing three-dimensional netted structure |
| US8757996B2 (en) | 2000-03-15 | 2014-06-24 | C-Eng Co., Ltd. | Apparatus and method for manufacturing three-dimensional netted structure |
| CN105705695A (en) * | 2013-10-28 | 2016-06-22 | 东洋纺株式会社 | Quiet, lightweight elastic mesh structure |
-
1995
- 1995-07-07 JP JP17205995A patent/JPH0921054A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068967A1 (en) | 2000-03-15 | 2001-09-20 | C-Eng Co.,Ltd. | Three-dimensional net-like structure, and method and device for producing three-dimensional net-like structure |
| US7625629B2 (en) | 2000-03-15 | 2009-12-01 | C-Eng Co., Ltd. | Three-dimensional net-like structure, and method and device for producing three dimensional net-like structure |
| US7993734B2 (en) | 2000-03-15 | 2011-08-09 | C-Eng Co., Ltd. | Three-dimensional net-like structure, and method and device for producing three-dimensional net-like structure |
| US8226882B2 (en) | 2000-03-15 | 2012-07-24 | C-Eng Co., Ltd. | Apparatus and method for manufacturing three-dimensional netted structure |
| US8563121B2 (en) | 2000-03-15 | 2013-10-22 | C-Eng Co., Ltd. | Three-dimensional netted structure having four molded surfaces |
| US8757996B2 (en) | 2000-03-15 | 2014-06-24 | C-Eng Co., Ltd. | Apparatus and method for manufacturing three-dimensional netted structure |
| JP2007169835A (en) * | 2005-12-22 | 2007-07-05 | Unitica Fibers Ltd | Three-dimensional structure, artificial seaweed bed using the same and artificial fish-breeding reef |
| CN105705695A (en) * | 2013-10-28 | 2016-06-22 | 东洋纺株式会社 | Quiet, lightweight elastic mesh structure |
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