JPS6121976Y2 - - Google Patents
Info
- Publication number
- JPS6121976Y2 JPS6121976Y2 JP1981184738U JP18473881U JPS6121976Y2 JP S6121976 Y2 JPS6121976 Y2 JP S6121976Y2 JP 1981184738 U JP1981184738 U JP 1981184738U JP 18473881 U JP18473881 U JP 18473881U JP S6121976 Y2 JPS6121976 Y2 JP S6121976Y2
- Authority
- JP
- Japan
- Prior art keywords
- frp
- adapter
- strut
- present
- support
- 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.)
- Expired
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Tents Or Canopies (AREA)
- Rod-Shaped Construction Members (AREA)
- Protection Of Plants (AREA)
- Greenhouses (AREA)
Description
【考案の詳細な説明】
本考案は農業用に使用するFRP製支柱材に関
するものである。[Detailed description of the invention] The present invention relates to an FRP support post used for agriculture.
露地栽培等のトンネルハウス用支柱には、繊維
強化プラスチツク製（以下、FRP製という）の
棒状体が、その強靭性、復元性、軽量性、非錆化
性等の利点のために広く用いられている。而る
に、トンネルハウスは、シートで被覆する必要が
あり、従来においては、上記FRP製支柱にクラ
ツプ式のロープ用止め金具を挾着し、この止め金
に上記シートをロープで留止している。 Rods made of fiber-reinforced plastic (hereinafter referred to as FRP) are widely used as supports for tunnel houses for outdoor cultivation, etc. due to their advantages such as toughness, resilience, light weight, and non-rustability. ing. However, it is necessary to cover the tunnel house with a sheet, and conventionally, a clamp-type rope stopper is attached to the above-mentioned FRP support, and the above-mentioned sheet is fastened to this stopper with a rope. There is.
ところで、上記FRP製支柱として第３図に示
すような断面Ｔ形のものを使用することがある。
このＴ形における頭部の厚みをｔ、巾をｂ、脚部
の厚みをｔ、脚部のせいをｈとすると、中立面の
位置X1は
である。而るに、通常、ｔ≒0.3h、ｂ≒1.2hであ
り、従つて、X1≒0.85hであり、よつて、
最大曲げ応力τmaxは、脚部の下端に生じ、そ
の大きさは頭部上端の曲げ応力のＸ１／ｈ−Ｘ１＝5.6
倍で
ある。 By the way, as the above-mentioned FRP support column, a T-shaped cross section as shown in FIG. 3 is sometimes used.
If the thickness of the head in this T-shape is t, the width is b, the thickness of the leg is t, and the length of the leg is h, then the position of the neutral plane X 1 is It is. However, normally, t≒0.3h, b≒1.2h, and therefore , Bending stress at the upper end of the part: X 1 /h - X 1 = 5.6
It's double.
而るに、上記クリツプ式のロープ用止め金具を
Ｔ形支柱に挾着するとき、金具と支柱との接触箇
所におけるFRPの損傷を避けることができず、
この場合、上記最大曲げ応力の作用する脚部下端
から破壊が発生し、支柱の早期破断を免れ得な
い。 However, when attaching the above-mentioned clip-type rope fastener to the T-shaped support, damage to the FRP at the contact point between the metal and the support cannot be avoided.
In this case, the fracture will occur from the lower end of the leg where the maximum bending stress is applied, and the strut will inevitably break at an early stage.
本考案に係るFRP製支柱材は断面Ｔ形FRP支
柱材における上記の不利を解消し得る構成であ
り、Ｔ形断面形状の繊維強化プラスチツク製支柱
本体の所定箇所において、上記Ｔ形の中央凸条に
上記繊維強化プラスチツクよりも軟質のアダプタ
ーを嵌め、該アダプターと支柱本体とを囲んでク
リツプ式止め金具を挾着したことを特徴とするも
のである。 The FRP strut material according to the present invention has a structure that can eliminate the above-mentioned disadvantages of the T-shaped FRP strut material. This is characterized in that an adapter that is softer than the fiber-reinforced plastic is fitted into the support, and a clip-type fastener is attached to the support by surrounding the adapter and the support main body.
以下、図面により本考案を説明する。 The present invention will be explained below with reference to the drawings.
第１図Ａは本考案において使用するFRP製の
支柱本体Ａを示しており、長手方向に連続の凸条
１を有し、Ｔ形断面形状である。この支柱本体Ａ
は、ガラス繊維のローピングを熱硬化性樹脂槽に
通し、更に、これを成形ダイスで上記断面形状に
引抜き成形すると共にそのダイスにおいて熱硬化
性樹脂槽を硬化することによつて製造できる。 FIG. 1A shows a support main body A made of FRP used in the present invention, which has continuous protrusions 1 in the longitudinal direction and has a T-shaped cross section. This pillar body A
can be manufactured by passing a glass fiber roping through a thermosetting resin bath, then pultruding it into the above-mentioned cross-sectional shape using a forming die, and curing the thermosetting resin bath in the die.
第１図Ｂは本考案において使用するアダプター
Ｂを示しており、上記支柱本体Ａの凸条１に嵌合
される凹溝２を備え、その長さは通常70〜100mm
である。このアダプターＢは上記FRPよりも軟
かい材質の合成樹脂例えば、塩化ビニル、ポリエ
チレン、ポリプロピレン等から成形されている。 Figure 1B shows an adapter B used in the present invention, which is equipped with a groove 2 that fits into the protrusion 1 of the support main body A, and whose length is usually 70 to 100 mm.
It is. This adapter B is molded from a synthetic resin that is softer than the above-mentioned FRP, such as vinyl chloride, polyethylene, polypropylene, etc.
第２図Ａは本考案に係る止め金具付FRP製支
柱材の側面図で、第２図Ｂは第２図Ａにおけるｂ
−ｂ断面図をそれぞれ示しており、上記支柱本体
Ａの所定箇所の凸条１に、上記のアダプターＢが
嵌合され、このアダプターＢと支柱本体Ａを囲ん
でクリツプ式のロープ用止め金具Ｃが挾着されて
いる。上述した通り本考案に係る断面Ｔ形の
FRP製支柱においては、脚部にアダプターを嵌
め、そのうえからクリツプ式止め金具を挾着し、
この止め金具が脚部下端に接触するのを防止して
あるから、脚部下端のFRPの損傷を充分排除で
き、最大曲げ応力が作用する脚部下端からの早期
破壊を防止できる。勿論、アダプターにはFRP
よりも軟質のものを使用しているから、アダプタ
ーによるFRPの損傷も充分に防止できる。 Figure 2A is a side view of the FRP strut with a fastener according to the present invention, and Figure 2B is b in Figure 2A.
-b cross-sectional views are shown, in which the adapter B is fitted into the protruding strip 1 at a predetermined location on the support main body A, and a clip-type rope stopper C is attached around the adapter B and support main body A. is clamped. As mentioned above, the T-shaped cross section according to the present invention
For FRP poles, fit the adapter into the leg, then attach the clip-type stopper to it.
Since this stopper is prevented from coming into contact with the lower end of the leg, damage to the FRP at the lower end of the leg can be sufficiently prevented, and early breakage from the lower end of the leg, where the maximum bending stress is applied, can be prevented. Of course, the adapter is FRP
Since we use a softer material than the adapter, we can fully prevent damage to the FRP caused by the adapter.
第１図Ａは本考案おいて使用するFRP製支柱
本体を示す説明図、第１図Ｂは本考案において使
用するアダプターを示す説明図、第２図Ａは本考
案に係るFRP製支柱材を示す側面説明図、第２
図Ｂは第２図Ａにおけるｂ−ｂ断面説明図、第３
図は従来の断面Ｔ形FRP製支柱を示す説明図で
ある。
図において、Ａは支柱本体、１は凸条、１０は
凹溝、Ｂはアダプター、Ｃはクリツプ式止め金具
である。
Figure 1A is an explanatory diagram showing the FRP strut body used in the present invention, Figure 1B is an explanatory diagram showing the adapter used in the present invention, and Figure 2A is an explanatory diagram showing the FRP strut body according to the present invention. Side explanatory view shown, second
Figure B is an explanatory diagram of the b-b cross section in Figure 2A;
The figure is an explanatory view showing a conventional T-shaped cross-sectional FRP column. In the figure, A is the support main body, 1 is a protrusion, 10 is a groove, B is an adapter, and C is a clip-type stopper.
Claims (1)
体の所定箇所において、上記Ｔ形の中央凸条に上
記繊維強化プラスチツクよりも軟質のアダプター
を嵌め、該アダプターと支柱本体とを囲んでクリ
ツプ式止め金具を挾着したことを特徴とする
FRP製支柱材。 An adapter that is softer than the fiber-reinforced plastic is fitted onto the central convex strip of the T-shape at a predetermined location on the fiber-reinforced plastic strut body with a T-shaped cross section, and a clip-type fastener is fitted around the adapter and the strut body. characterized by being pinned
FRP strut material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981184738U JPS5888863U (en) | 1981-12-10 | 1981-12-10 | FRP pillar material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981184738U JPS5888863U (en) | 1981-12-10 | 1981-12-10 | FRP pillar material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5888863U JPS5888863U (en) | 1983-06-16 |
| JPS6121976Y2 true JPS6121976Y2 (en) | 1986-07-01 |
Family
ID=29985155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981184738U Granted JPS5888863U (en) | 1981-12-10 | 1981-12-10 | FRP pillar material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996014733A1 (en) * | 1994-11-16 | 1996-05-23 | Shotaro Mogami | Green house |
-
1981
- 1981-12-10 JP JP1981184738U patent/JPS5888863U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996014733A1 (en) * | 1994-11-16 | 1996-05-23 | Shotaro Mogami | Green house |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5888863U (en) | 1983-06-16 |
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