JPH0230273Y2 - - Google Patents
Info
- Publication number
- JPH0230273Y2 JPH0230273Y2 JP11887784U JP11887784U JPH0230273Y2 JP H0230273 Y2 JPH0230273 Y2 JP H0230273Y2 JP 11887784 U JP11887784 U JP 11887784U JP 11887784 U JP11887784 U JP 11887784U JP H0230273 Y2 JPH0230273 Y2 JP H0230273Y2
- Authority
- JP
- Japan
- Prior art keywords
- frp
- ribs
- long fibers
- prepreg sheet
- view
- 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
- 239000000835 fiber Substances 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 9
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 230000001154 acute effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、特にリブのあるFRP部品に関する。[Detailed explanation of the idea] [Industrial application field] The present invention particularly relates to FRP parts with ribs.
［従来技術］
従来、長繊維（連続繊維）を配合してなるプリ
プレグシートを、断面Ｕ字状に熱プレス成形して
なるFRP部品は例えば特公昭54−35232号公報に
示されるように公知であり、また実用化されてい
る。[Prior art] Conventionally, FRP parts made by hot press forming a prepreg sheet containing long fibers (continuous fibers) into a U-shaped cross section have been known, for example, as shown in Japanese Patent Publication No. 54-35232. Yes, and it has been put into practical use.
ところで、軽量化を指向する自動車用部品とし
て、第５図に示すように、エンジンマウントメン
バ１をFRPで製造する場合、高強度・高剛性が
要求されることから、断面Ｕ字状の両側部１ａ，
１ａに多数のリブ２，…，２を形成して補強する
必要がある。 By the way, when the engine mount member 1 is manufactured from FRP as an automobile part aiming at weight reduction, as shown in Fig. 5, high strength and high rigidity are required. 1a,
It is necessary to form a large number of ribs 2, . . . , 2 on 1a to reinforce it.
ところが、リブ２は、第６図および第７図に詳
細に示すように、長繊維３の配向方向に対して直
角な方向に鋭角で立上がつた突起状であるから、
熱プレス成形時に、長繊維３，…，３がリブ２内
に入り込み難く、ゲル化した樹脂４のみが充填さ
れるようになるので（樹脂リツチ）、リブ２にク
ラツクが発生して高強度・高剛性が得られないと
いう問題があつた。 However, as shown in detail in FIGS. 6 and 7, the ribs 2 are protrusions that rise at an acute angle in a direction perpendicular to the orientation direction of the long fibers 3.
During hot press molding, the long fibers 3, ..., 3 are difficult to enter into the ribs 2, and only the gelled resin 4 is filled (resin rich), so cracks occur in the ribs 2, resulting in high strength and There was a problem that high rigidity could not be obtained.
［考案の目的］
本考案は、上記従来の問題点に鑑みてなされた
もので、リブにも長繊維を充分に充填することを
可能としたFRP部品を提供することを目的とす
るものである。[Purpose of the invention] The present invention has been made in view of the above-mentioned conventional problems, and the purpose is to provide an FRP part in which the ribs can also be sufficiently filled with long fibers. .
［考案の構成］
このため本考案は、長繊維を配合してなるプリ
プレグシートを断面Ｕ字状に熱プレス成形してな
るFRP部品であつて、上記FRP部品の補強を要
する部位に、該部位の底板部を長繊維の配向方向
に沿つて山形形状に降起させてなるリブを形成し
て構成したものである。[Structure of the invention] For this reason, the present invention is an FRP part made by hot press molding a prepreg sheet containing long fibers into a U-shaped cross section. The bottom plate is formed with ribs that are raised in the shape of a chevron along the orientation direction of the long fibers.
［考案の効果］
本考案によれば、断面Ｕ字状のFRP部品の底
板部を、長繊維の配向方向に沿つて山形形状に降
起させてなるリブを形成したものであるから、プ
リプレグシートの長繊維が連続性を保つたまま緩
やかに降起したリブ内に十分充填されるようにな
るので、リブの樹脂リツチ化が防止され、FRP
部品に高強度・高剛性を確保できるようになる。[Effects of the invention] According to the invention, since the bottom plate part of the FRP component having a U-shaped cross section is formed with ribs formed in a chevron shape along the orientation direction of the long fibers, the prepreg sheet is Since the long fibers of FRP are sufficiently filled into the ribs that gradually descend while maintaining continuity, the resin richness of the ribs is prevented, and the FRP
It becomes possible to ensure high strength and high rigidity in parts.
［実施例］
第１図に示すように、底板部１０ａと両側部１
０ｂ，１０ｂとでなる断面Ｕ字状（チヤンネル
状）のFRP部品１０を成形するための金型１１
は、第２図ａに示すように、FRP部品１０の外
周部成形用溝部１２ａが形成された下型１２と、
内周部成形用突起１３ａが形成された上型１３と
で構成されている。[Example] As shown in FIG. 1, the bottom plate part 10a and both side parts 1
A mold 11 for molding an FRP part 10 having a U-shaped cross section (channel shape) consisting of 0b and 10b.
As shown in FIG. 2a, a lower mold 12 in which a groove 12a for forming the outer peripheral part of the FRP component 10 is formed;
It is composed of an upper mold 13 in which an inner circumference molding projection 13a is formed.
一方、下型１２の外周部成形用溝部１２ａの底
部１２ｂには、第２図ｂに示すように、プリプレ
グシート１４の長繊維１５の配向方向に沿つて山
形に降起させた溝突起１２ｃを形成するととも
に、上型１３の内周部成形用突起１３ａの頂部１
３ｂには、上記下型１２の溝突起１２ｃに対応さ
せて凹ませた突溝部１３ｃを形成する。 On the other hand, on the bottom part 12b of the outer circumferential molding groove part 12a of the lower mold 12, as shown in FIG. At the same time, the top part 1 of the inner circumferential molding projection 13a of the upper die 13 is
3b is formed with a protruding groove portion 13c that is recessed to correspond to the groove protrusion 12c of the lower mold 12.
しかして、下型１２にプリプレグシート１４を
載置して上型１３を作動させると、下型１２の溝
部１２ａに上型１３の突起１３ａが嵌まり合い、
プリプレグシート１４が断面Ｕ字状に加圧成形さ
れると同時に、下型１２の溝突起１２ｃに上型１
３の突溝部１３ｃが嵌まり合い、FRP部品１０
の底板部１０ａに相当するプリプレグシート１４
が山形形状のリブ１０ｃとして加圧成形される。 When the prepreg sheet 14 is placed on the lower mold 12 and the upper mold 13 is operated, the projections 13a of the upper mold 13 fit into the grooves 12a of the lower mold 12.
At the same time that the prepreg sheet 14 is pressure-formed into a U-shaped cross section, the upper mold 1 is inserted into the groove protrusion 12c of the lower mold 12.
The protruding grooves 13c of 3 fit together, and the FRP part 10
Prepreg sheet 14 corresponding to the bottom plate portion 10a of
is press-formed into a chevron-shaped rib 10c.
そして、熱プレス成形によりゲル化した樹脂１
６が上下型１３，１４の隙間に充填されて、リブ
１０ｃのあるFRP部品１０が成形される。 Then, the resin 1 was gelled by hot press molding.
6 is filled into the gap between the upper and lower molds 13 and 14, and an FRP component 10 with ribs 10c is molded.
こうして完成したFRP部品１０は、長繊維１
５が連続性を保つたまま緩やかに降起した山形形
状のリブ１０ｃ内に均一に充填されることにな
る。 The FRP part 10 completed in this way consists of long fibers 1
5 is evenly filled into the gently rising chevron-shaped ribs 10c while maintaining continuity.
第３図ａは、本考案に係るリブ１０ｃが形成さ
れたFRP部品（本案品）１０と、樹脂リツチの
リブ２が成形されたFRP部品（従来品）５との
捩り剛性テスト用ピースを示す。 Fig. 3a shows torsional rigidity test pieces of an FRP part (present product) 10 on which ribs 10c according to the present invention are formed and an FRP part (conventional product) 5 on which resin-rich ribs 2 are molded. .
各FRP部品１０，５の全長は250mm、高さｈ
は30mm、開口部幅w1は70mm、底部幅w2は50mmと
し、かつFRP部品１０は端部からリブ１０ｃま
での高さ1を25mm、リブ１０ｃの長さ2を50mm
とし、FRP部品５は、端部からリブまでの長さ
3を50mm、リブ２の間隔4を75mmとした。 The total length of each FRP part 10, 5 is 250mm, height h
is 30 mm, the opening width w 1 is 70 mm, the bottom width w 2 is 50 mm, and the height 1 from the end of the FRP component 10 to the rib 10c is 25 mm, and the length 2 of the rib 10 c is 50 mm.
The length of FRP part 5 from the end to the rib is
3 was 50 mm, and the interval 4 between ribs 2 was 75 mm.
各FRP部品５，１０は、長繊維50重量％，短
繊維10重量％，樹脂（不飽和ポリエステル）40重
量％のプリプレグシートで構成した。 Each of the FRP parts 5 and 10 was composed of a prepreg sheet containing 50% by weight of long fibers, 10% by weight of short fibers, and 40% by weight of resin (unsaturated polyester).
そして、各FRP部品５，１０を第４図ａに示
すような捩り試験機２０で両端支持して、捩りを
加えた。その結果を第４図ｂのグラフに示す。 Then, each FRP component 5, 10 was supported at both ends with a torsion tester 20 as shown in FIG. 4a, and torsion was applied. The results are shown in the graph of FIG. 4b.
グラフからも明らかなように、本案品１０は従
来品１に比べて約20％も捩り剛性が向上したこと
がわかる。 As is clear from the graph, it can be seen that the torsional rigidity of the proposed product 10 is improved by about 20% compared to the conventional product 1.
第１図は本考案に係るFRP部品の斜視図、第
２図ａはFRP部品を成形する金型の第１図の
−に相当する断面図、第２図ｂはFRP部品を
成形する金型の第１図の−に相当する断面
図、第３図ａは本考案に係る捩り剛性テスト用ピ
ースの斜視図、第３図ｂは従来の捩り剛性テスト
用ピースの斜視図、第４図ａは捩り試験機の側面
図、第４図ｂは捩り試験データを示すグラフ、第
５図はエンジンマウントメンバ（FRP部品）の
斜視図、第６図は従来のFRP部品の斜視図、第
７図は第６図の−断面図である。
１０……FRP部品、１０ａ……底板部、１０
ｃ……リブ、１４……プリプレグシート、１５…
…長繊維。
Figure 1 is a perspective view of the FRP part according to the present invention, Figure 2 a is a sectional view corresponding to - in Figure 1 of the mold for molding the FRP part, and Figure 2 b is the mold for molding the FRP part. Figure 3a is a perspective view of a torsional rigidity test piece according to the present invention, Figure 3b is a perspective view of a conventional torsional rigidity test piece, and Figure 4a is a cross-sectional view corresponding to - in Figure 1. is a side view of the torsion test machine, Fig. 4b is a graph showing torsion test data, Fig. 5 is a perspective view of the engine mount member (FRP part), Fig. 6 is a perspective view of a conventional FRP part, Fig. 7 is a - sectional view of FIG. 10...FRP parts, 10a...Bottom plate part, 10
c...Rib, 14...Prepreg sheet, 15...
...Long fiber.
Claims (1)
Ｕ字状に熱プレス成形してなるFRP部品であつ
て、 上記FRP部品の補強を要する部位に、該部位
の底板部を長繊維の配向方向に沿つて山形形状に
***させてなるリブを形成したことを特徴とする
FRP部品。[Claims for Utility Model Registration] An FRP part made by hot press forming a prepreg sheet made of long fibers into a U-shaped cross section, where the bottom plate of the above FRP part requires reinforcement. It is characterized by forming ribs formed by raising it in a chevron shape along the orientation direction of the long fibers.
FRP parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11887784U JPS6131827U (en) | 1984-07-31 | 1984-07-31 | FRP parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11887784U JPS6131827U (en) | 1984-07-31 | 1984-07-31 | FRP parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6131827U JPS6131827U (en) | 1986-02-26 |
| JPH0230273Y2 true JPH0230273Y2 (en) | 1990-08-15 |
Family
ID=30677756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11887784U Granted JPS6131827U (en) | 1984-07-31 | 1984-07-31 | FRP parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131827U (en) |
-
1984
- 1984-07-31 JP JP11887784U patent/JPS6131827U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6131827U (en) | 1986-02-26 |
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