JPH0668344B2 - FRP flange - Google Patents
FRP flangeInfo
- Publication number
- JPH0668344B2 JPH0668344B2 JP1118449A JP11844989A JPH0668344B2 JP H0668344 B2 JPH0668344 B2 JP H0668344B2 JP 1118449 A JP1118449 A JP 1118449A JP 11844989 A JP11844989 A JP 11844989A JP H0668344 B2 JPH0668344 B2 JP H0668344B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- frp
- resin
- radial direction
- impregnated
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明はFRP管、またはFRP管継手などのプラスチック
成形管の末端に形成されるFRP製フランジの改良に関す
る。Description: TECHNICAL FIELD The present invention relates to an improvement of a FRP pipe or a flange made of FRP formed at the end of a plastic molded pipe such as a FRP pipe joint.
従来、FRP管またはFRP管継手などの管端部分のフランジ
として、第３図に示すように、フランジＡを樹脂含浸繊
維または織布の多重巻回により一体成形したものが知ら
れている（例えば特開平１−299392号公報または特公昭
57−21460号）。Conventionally, as a flange of a pipe end portion such as an FRP pipe or a FRP pipe joint, as shown in FIG. 3, one in which a flange A is integrally formed by multiple winding of resin-impregnated fiber or woven fabric is known (for example, Japanese Patent Laid-Open No. 1-299392 or Japanese Patent Publication
57-21460).
ところで、上記FRP製フランジは、成形管に対する密着
性には非常に優れる反面、フランジの内部構造が実質的
に径方向への積層体となっていることより、管接続時ボ
ルト等Ｂによる締結部分に第３図矢印Ｐで示すように生
じる剪断応力によって第４図に示すようにフランジ部分
のボルト等の締結部分に沿って剪断破壊されやすく耐用
強度上問題がある欠点が有った。By the way, the FRP flange is very excellent in adhesion to the molded pipe, but since the internal structure of the flange is a substantially radial laminated body, the portion to be fastened with the bolt B etc. at the time of pipe connection. As shown in FIG. 4, there is a problem that the shear stress easily occurs along the fastening portion such as the bolt of the flange portion due to the shear stress generated as shown by an arrow P in FIG.
この発明は上記問題点に鑑み、強大な締めつけ力が加わ
ってもこれに対する剪断強度を著しく強め、充分な耐用
強度を発揮し得るFRP製フランジを提供することを目的
としてなされたものである。In view of the above problems, the present invention has been made for the purpose of providing a flange made of FRP which can remarkably enhance the shear strength against a strong tightening force and exhibit sufficient durability.
即ち、この発明のFRP製フランジは成形管の末端部分に
樹脂含浸繊維の多重巻回によりフランジが一体成形さ
れ、該フランジ内には、半径方向の略中央部分に半径方
向に幅を有する補強布が周方向に連続して一体に埋入さ
れてなることを特徴とするものである。That is, in the FRP flange of the present invention, the flange is integrally molded at the end portion of the molded pipe by multiple winding of resin-impregnated fiber, and the reinforcing cloth having a width in the radial direction at the substantially central portion in the radial direction is formed in the flange. It is characterized in that it is embedded continuously in the circumferential direction.
次に、この発明の実施例を説明する。 Next, an embodiment of the present invention will be described.
第１図はこの発明の実施例の断面図、第２図は実施例の
製造装置を示す断面図である。FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view showing a manufacturing apparatus of the embodiment.
この発明のFRP製フランジ１は、第１図に示すように、F
RP管、または同継手などの成形管２末端2A部分に樹脂含
浸繊維３…３の多重巻回によりフランジ3Aが一体成形さ
れ、このフランジ3A内には、半径方向（矢印Ｘ）の略中
央部分に半径方向に幅Ｓを有する補強布４…４が周方向
に連続して一体に埋入されて構成されている。The FRP flange 1 of the present invention, as shown in FIG.
A flange 3A is integrally formed on the end 2A of the molded pipe 2 such as an RP pipe or the same joint by multiple winding of the resin-impregnated fibers 3 ... 3, and in this flange 3A, a substantially central portion in the radial direction (arrow X) is formed. 4 having a width S in the radial direction is continuously and integrally embedded in the circumferential direction.
上記補強布４…４は樹脂含浸繊維３…３に含浸させた樹
脂を含浸させたものが使用され、後述するように、樹脂
含浸樹脂３…３の多重巻回時に介挿される。The reinforcing cloths 4 ... 4 are made of resin-impregnated fibers 3 ... 3 impregnated with resin, and are inserted when the resin-impregnated resins 3 ... 3 are wound multiple times, as will be described later.
また、上記補強布４…４は径方向に一定の幅を有してい
ればよく、この限りにおいて第１図図示のようにコ字状
に曲折させた状態で埋入しても良い。It is sufficient that the reinforcing cloths 4 ... 4 have a constant width in the radial direction, and as long as this is the case, the reinforcing cloths 4 may be embedded in a U-shaped bent shape as shown in FIG.
上記FRP製フランジ１を成形する場合、第２図に示すよ
うに、成形管２の末端2Aに型板5A及び5Bを配置し、この
間に樹脂含浸繊維3Aを巻回積重し、所定の幅となるよう
フランジを成形していくが、積重の途中において樹脂含
浸補強布４を幾枚が重ね、さらにその上に所定の半径と
なるまで樹脂含浸繊維３を巻回積重し、その後樹脂を硬
化させ、型板5A、5Bを外せばFRP製フランジが完成す
る。When the FRP flange 1 is molded, as shown in FIG. 2, mold plates 5A and 5B are arranged at the end 2A of the molded tube 2, and the resin-impregnated fiber 3A is wound and stacked between them to form a predetermined width. The flanges are formed so that the resin-impregnated reinforcing cloths 4 are piled up in the middle of the stacking, and the resin-impregnated fiber 3 is further wound and stacked on the stack until the predetermined radius is reached, and then the resin The FRP flange is completed by curing and removing the templates 5A and 5B.
この発明において、FRP製フランジは樹脂含浸繊維３…
３の巻回積重により形成されるが、剪断応力の生じる部
分に径方向に幅を有して樹脂含浸織布４…４を一体に埋
入してなるから、この部分での耐剪断力が補強され、繊
維巻回積重により形成されたものであっても述分な強度
を発揮する。In this invention, the FRP flange is a resin-impregnated fiber 3 ...
3 is formed by winding and stacking, but the resin-impregnated woven fabrics 4 ... 4 having a width in the radial direction are integrally embedded in a portion where shear stress is generated. Is reinforced, and even if it is formed by fiber winding stacking, it exhibits the above-mentioned strength.
この発明は、以上説明したように、樹脂含浸繊維の巻回
積重により成形されたFRP製フランジであっても、径方
向中央部分の剪断強度が補強され、ボルト等の締めつけ
に対しても充分な耐用強度を発揮する効果を有する他、
製造に際しても、従来の巻回手段を何ら変更することな
く実施でき、製造も容易であるなどの効果を有する。As described above, the present invention, even if it is a FRP flange formed by winding and stacking resin-impregnated fibers, the shear strength of the central portion in the radial direction is reinforced, and it is sufficient for tightening bolts and the like. In addition to having the effect of exhibiting excellent durability,
Also in manufacturing, there is an effect that the conventional winding means can be carried out without any change and the manufacturing is easy.
第１図はこの発明の実施例の断面図、第２図は実施例の
製造装置を示す断面図、第３図及び第４図は従来例の説
明断面図である。FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a sectional view showing a manufacturing apparatus of the embodiment, and FIGS. 3 and 4 are explanatory sectional views of a conventional example.
Claims (1)
回によりフランジが一体成形され、該フランジ内には、
半径方向の略中央部分に半径方向に幅を有する補強布が
周方向に連続して一体に埋入されてなることを特徴とす
るFRP製フランジ。1. A flange is integrally molded at the end portion of a molded tube by multiple winding of resin-impregnated fiber, and the inside of the flange is
A flange made of FRP, characterized in that a reinforcing cloth having a width in a radial direction is continuously and integrally embedded in a circumferential direction at a substantially central portion in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1118449A JPH0668344B2 (en) | 1989-05-11 | 1989-05-11 | FRP flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1118449A JPH0668344B2 (en) | 1989-05-11 | 1989-05-11 | FRP flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02300592A JPH02300592A (en) | 1990-12-12 |
| JPH0668344B2 true JPH0668344B2 (en) | 1994-08-31 |
Family
ID=14736921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1118449A Expired - Lifetime JPH0668344B2 (en) | 1989-05-11 | 1989-05-11 | FRP flange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0668344B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4676914B2 (en) * | 2006-03-31 | 2011-04-27 | 株式会社 神尾工業 | Pipe lining method |
| CN114434823A (en) * | 2022-01-14 | 2022-05-06 | 威海光威复合材料股份有限公司 | Production method and production device of main wing beam of unmanned aerial vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721460A (en) * | 1980-07-10 | 1982-02-04 | Sumitomo Chem Co Ltd | Production of disazo yellow pigment |
| JPS58214085A (en) * | 1982-06-07 | 1983-12-13 | 積水化学工業株式会社 | Flange made of fiber reinforced resin and its manufacture |
-
1989
- 1989-05-11 JP JP1118449A patent/JPH0668344B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721460A (en) * | 1980-07-10 | 1982-02-04 | Sumitomo Chem Co Ltd | Production of disazo yellow pigment |
| JPS58214085A (en) * | 1982-06-07 | 1983-12-13 | 積水化学工業株式会社 | Flange made of fiber reinforced resin and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02300592A (en) | 1990-12-12 |
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