JP2014015159A - Propeller blade body and method of manufacturing the same - Google Patents

Propeller blade body and method of manufacturing the same Download PDF

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JP2014015159A
JP2014015159A JP2012155219A JP2012155219A JP2014015159A JP 2014015159 A JP2014015159 A JP 2014015159A JP 2012155219 A JP2012155219 A JP 2012155219A JP 2012155219 A JP2012155219 A JP 2012155219A JP 2014015159 A JP2014015159 A JP 2014015159A
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fiber cloth
reinforcing fiber
pair
members
thermosetting resin
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Shinichi Nakamu
真一 中務
Toyohiro Sato
豊弘 佐藤
Yoshifumi Kawakami
佳史 川上
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Sumitomo Precision Products Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a propeller blade body which is reinforced with high shape precision inexpensively by a relatively simple work, particularly, a front edge portion of which is sufficiently reinforced, and a method of manufacturing the blade body.SOLUTION: A blade body is made up of a core material 6, inner members 7,8, and an outer layer member 10, The inner members 7,8 are adhered to the core material 6 so as to sandwich the core material 6 from both sides, and junction surfaces including peripheral edges of the members are adhered. The outer layer member 10 is made up of reinforced fiber cloth and thermosetting resin impregnated into the reinforced fiber cloth, and adhered to the surface of the pair of inner members 7,8 so as to stride from one member to the other in a peripheral edge portion of the pair of inner members 7,8.

Description

本発明は、ハブと、ハブの外周部に放射状に固定される複数の翼体とを備えたプロペラの、前記翼体及びその製造方法に関する。   The present invention relates to a wing body including a hub and a plurality of wing bodies fixed radially to the outer peripheral portion of the hub, and a method for manufacturing the wing body.

周知のように、プロペラは航空機,船舶,風車など多様な用途に使用されている。そして、近年では、特開2011−51515号公報に開示されるように、プロペラの翼体を繊維強化樹脂等の複合材料から形成したものが実用化されている。   As is well known, propellers are used in various applications such as aircraft, ships, and windmills. In recent years, as disclosed in Japanese Patent Application Laid-Open No. 2011-51515, a propeller blade formed from a composite material such as a fiber reinforced resin has been put into practical use.

図5に示すように、この翼体100は、例えば、樹脂製又は金属製の芯材101と、芯材101を両側から挟み込むように該芯材101に接着され、且つその周縁を含む接合面同士が接合される、例えば、繊維強化樹脂製の一対の内部部材102,103と、内部部材102,103の表面に接着される補強用の外層部材104,105とから構成される。尚、図5は、翼体100の横断面形状を示した断面図である。   As shown in FIG. 5, the wing body 100 includes, for example, a resin or metal core material 101 and a bonding surface that is bonded to the core material 101 so as to sandwich the core material 101 from both sides and includes a peripheral edge thereof. For example, a pair of inner members 102 and 103 made of fiber reinforced resin and outer layers 104 and 105 for reinforcement bonded to the surfaces of the inner members 102 and 103 are joined. FIG. 5 is a cross-sectional view showing the cross-sectional shape of the wing body 100.

そして、従来、前記外層部材104,105としては、強化繊維布に熱硬化性樹脂を含浸させた後、これを加熱、硬化させることによって得られる型成形品が用いられており、成形品としての外層部材104,105を前記内部部材102,103の表面に接着するようにしていた。   Conventionally, as the outer layer members 104 and 105, a molded product obtained by impregnating a reinforcing fiber cloth with a thermosetting resin and then heating and curing the same is used. The outer layer members 104 and 105 are adhered to the surfaces of the inner members 102 and 103.

外層部材104,105を成形する方法としては、従来、主に2つの手法が採用されており、その一つは、図6に示すように、まず、前記内部部材102,103の表面形状に合わせた型形状を有する型材110を用い、この型材110の型形状部110aに強化繊維布を積層した後、同図(b)に示すように、積層後の型材110の周縁にシール材111を載置し、その後、シール材111によって囲まれる領域を覆うように真空シート115を載置して、型材110、シール材111及び真空シート115によって形成される内部空間を気密空間とし、ついで、排気部116から内部の気体を排気して当該内部を真空にした後、注入部117から熱硬化性樹脂を注入して前記強化繊維布に含浸させ、その後、熱硬化性樹脂を加熱して硬化させ、しかる後、前記シール材111及び真空シート115を取り外し、ついで、硬化後の成形品を型材110から離型し、同図(c)に示すように、その成形品の縁部を切断して外層部材104,105とするというものである。   As methods for forming the outer layer members 104 and 105, two methods have been conventionally employed, and one of them is first adapted to the surface shape of the inner members 102 and 103 as shown in FIG. After a reinforcing fiber cloth is laminated on the mold shape portion 110a of the mold material 110, a sealing material 111 is placed on the periphery of the laminated mold material 110 as shown in FIG. After that, the vacuum sheet 115 is placed so as to cover the region surrounded by the sealing material 111, and the internal space formed by the mold material 110, the sealing material 111 and the vacuum sheet 115 is made an airtight space, and then the exhaust section After exhausting the internal gas from 116 and evacuating the interior, a thermosetting resin is injected from the injection portion 117 to impregnate the reinforcing fiber cloth, and then the thermosetting resin is heated to be cured. After that, the sealing material 111 and the vacuum sheet 115 are removed, then the cured molded product is released from the mold material 110, and the edge of the molded product is cut as shown in FIG. Thus, the outer layer members 104 and 105 are used.

また、他の方法は、予め熱硬化性樹脂を含浸させた強化繊維布を用いるものであり、同じく前記型材110を用い、型材110の型形状部110aに、予め熱硬化性樹脂を含浸させた強化繊維布を積層した後、積層後の型材110の周縁にシール材111を載置し、その後、シール材111によって囲まれる領域を覆うように真空シート115を載置して、型材110、シール材111及び真空シート115によって形成される内部空間を気密空間とし、ついで、排気部116から内部の気体を排気して当該内部を真空にし、その後、外部から加圧した状態で、熱硬化性樹脂を加熱して硬化させ、しかる後、前記シール材111及び真空シート115を取り外し、ついで、硬化後の成形品を型材110から離型し、その成形品の縁部を切断して外層部材104,105とするというものである。   Another method is to use a reinforcing fiber cloth impregnated with a thermosetting resin in advance. Similarly, the mold material 110 is used and the mold shape portion 110a of the mold material 110 is impregnated with a thermosetting resin in advance. After the reinforcing fiber cloth is laminated, the sealing material 111 is placed on the periphery of the laminated mold material 110, and then the vacuum sheet 115 is placed so as to cover the region surrounded by the sealing material 111, and the mold material 110, the seal The internal space formed by the material 111 and the vacuum sheet 115 is an airtight space, then the internal gas is exhausted from the exhaust part 116 to evacuate the interior, and then the thermosetting resin is pressurized from the outside. Then, the sealing material 111 and the vacuum sheet 115 are removed, and then the cured molded product is released from the mold material 110, and the edge of the molded product is cut. Is that the outer layer member 104 and 105.

特開2011−51515号公報JP 2011-51515 A

ところが、上述した従来の翼体100は、その外層部材104,105が、型材110、シール材111及び真空シート115を用いた成形品であるため、これを内部部材102,103の表面に精度良く貼り付けることができないという問題があった。外層部材104,105の表面形状は、型材110の型形状部110aによって成形されるため、比較的形状精度が良好であるが、その一方、反対側の面、即ち、内部部材102,103の表面に当接する側の面の形状は、真空シート115に依存するため、その形状精度が悪く、このため、外層部材104,105を内部部材102,103の表面に精度良く貼り付けることができないのである。そして、このような状態では、極めてその作業性が悪く、製造コストの面からも問題であった。   However, in the conventional wing body 100 described above, the outer layer members 104 and 105 are molded products using the mold material 110, the seal material 111, and the vacuum sheet 115, so that they are accurately applied to the surfaces of the inner members 102 and 103. There was a problem that it could not be pasted. Since the surface shape of the outer layer members 104 and 105 is formed by the mold shape portion 110a of the mold material 110, the shape accuracy is relatively good. On the other hand, the opposite surfaces, that is, the surfaces of the inner members 102 and 103 are used. The shape of the surface abutting on the surface depends on the vacuum sheet 115, so the shape accuracy is poor, and therefore the outer layer members 104 and 105 cannot be attached to the surfaces of the inner members 102 and 103 with high accuracy. . And in such a state, the workability | operativity was very bad and it was a problem also from the surface of manufacturing cost.

また、一般的に、型材110は、その製造コストが高く、更に、型材110を用いた成形品は、その製造工程が多くなるため、これらの面からしても、全体的な製造コストが嵩むという問題がある。   In general, the mold material 110 has a high manufacturing cost, and a molded product using the mold material 110 has many manufacturing processes. Therefore, even from these aspects, the overall manufacturing cost increases. There is a problem.

また、図5に示すように、従来の翼体100では、その一対の外層部材104,105が、内部部材102,103の接合部に対応する部分で接合されているため、この一対の内部部材102,103の接合部における補強という意味では、これを満足することができないという問題もあった。同接合部は翼体100の周縁部(稜線部)100aであり、その回転方向における前側周縁部(前縁部)には、例えば、プロペラが船舶用のものである場合には、水中に浮遊する固形物が衝突するといったことが不可避であり、この場合、同部が損傷する可能性が高い。   Further, as shown in FIG. 5, in the conventional wing body 100, the pair of outer layer members 104 and 105 are joined at portions corresponding to the joined portions of the inner members 102 and 103. There was also a problem that this could not be satisfied in the sense of reinforcement at the joints 102 and 103. The joint portion is a peripheral portion (ridge line portion) 100a of the wing body 100, and the front peripheral portion (front edge portion) in the rotation direction floats in water when the propeller is for ships, for example. It is inevitable that the solid material that collides will collide, and in this case, there is a high possibility that the same part will be damaged.

本発明は、以上の実情に鑑みなされたものであって、比較的簡便な作業で安価に形状精度良く補強され、且つその前縁部が十分に補強されたプロペラ翼体、及び当該プロペラ翼体の製造方法の提供を、その目的とする。   The present invention has been made in view of the above circumstances, and is a propeller blade body that is reinforced with a relatively simple shape at low cost with good shape accuracy, and whose front edge is sufficiently reinforced, and the propeller blade body. It is an object of the present invention to provide a manufacturing method.

上記課題を解決するための本発明は、プロペラを構成する翼体であって、
接合面の全域、若しくは周縁部を除く前記接合面が相互に接着されて一体化される一対の内部部材と、前記内部部材の表面に接着される補強用の外層部材とを含んで構成され、
前記外層部材は、強化繊維布と、該強化繊維布に含浸された熱硬化性樹脂とから構成されるとともに、前記一対の内部部材の周縁部において、一方から他方に跨るように該一対の内部部材表面に接着されたプロペラ翼体に係る。
The present invention for solving the above problems is a wing body constituting a propeller,
The entire surface of the bonding surface, or a pair of internal members that are bonded and integrated with each other except the peripheral portion, and a reinforcing outer layer member that is bonded to the surface of the internal member,
The outer layer member is composed of a reinforcing fiber cloth and a thermosetting resin impregnated in the reinforcing fiber cloth, and the pair of internal members extends from one to the other at the peripheral edge of the pair of internal members. The present invention relates to a propeller blade attached to a member surface.

また、本発明は、プロペラを構成する翼体の製造方法であって、
一対の内部部材を、その接合面の全域、若しくは周縁部を除く前記接合面で相互に接着した後、
強化繊維布、及び該強化繊維布に含浸される熱硬化性樹脂から構成される外層部材を、前記一対の内部部材の周縁部において、その一方から他方に跨るように該内部部材に接着するようにしたプロペラ翼体の製造方法に係る。
Further, the present invention is a method of manufacturing a wing body constituting a propeller,
After bonding a pair of internal members to each other on the entire joint surface or the joint surface excluding the peripheral edge,
An outer layer member composed of a reinforcing fiber cloth and a thermosetting resin impregnated in the reinforcing fiber cloth is adhered to the inner member so as to straddle the other end of the pair of inner members from one to the other. The present invention relates to a method for manufacturing a propeller blade body.

本発明によれば、補強用の外層部材が、一対の内部部材の周縁部において、その一方から他方に跨るように当該内部部材に接着されるので、同周縁部を外層部材によって確実に補強することができる。したがって、このプロペラを、船舶など、固形物と衝突する可能性が高いものに適用しても、この衝突によって、翼体の前縁部が損傷するのを効果的に抑制することができる。   According to the present invention, the outer layer member for reinforcement is bonded to the inner member so as to straddle from one side to the other at the peripheral portion of the pair of internal members, so that the peripheral portion is reliably reinforced by the outer layer member. be able to. Therefore, even if this propeller is applied to a ship or the like that has a high possibility of colliding with a solid object, it is possible to effectively suppress damage to the leading edge portion of the wing body due to the collision.

そして、この外層部材による内部部材の補強は、まず、一対の内部部材を、その接合面の全域、若しくは周縁部を除く前記接合面で相互に接着した後、
粒状の熱可塑性樹脂を分散して付着させた強化繊維布を、加熱しながら、前記一対の内部部材の周縁部において、その一方から他方に跨るように当該内部部材表面に貼り付け、
ついで、前記内部部材及び強化繊維布から構成される中間品を真空バッグに封入し、この真空バッグ内の気体を排気して内部を真空にした後、前記真空バッグ内に熱硬化性樹脂を注入して、当該熱硬化性樹脂を前記強化繊維布に含浸させ、
この後、前記熱硬化性樹脂を加熱して硬化させることによって、好適に実現することができる。
And the reinforcement of the internal member by this outer layer member, first, after bonding a pair of internal members to each other on the entire joint surface, or the joint surface excluding the peripheral portion,
Reinforcing the reinforcing fiber cloth in which the particulate thermoplastic resin is dispersed and adhered, while being heated, at the peripheral edge of the pair of internal members, affixed to the surface of the internal member so as to straddle the other,
Next, an intermediate product composed of the internal member and the reinforcing fiber cloth is enclosed in a vacuum bag, the gas in the vacuum bag is evacuated and the inside is evacuated, and then a thermosetting resin is injected into the vacuum bag. Then, the reinforcing fiber cloth is impregnated with the thermosetting resin,
Then, it can implement | achieve suitably by heating the said thermosetting resin and making it harden | cure.

プロペラ翼体は、その表面形状が単純なものは少なく、むしろ曲率が多様に変化する所謂自由曲面形状を備えたものが多い。そして、このような自由曲面を有する内部部材表面に、強化繊維布を含む外層部材を位置させた後、熱硬化性樹脂を含浸させて、加熱,硬化させる場合、強化繊維布を単に内部部材に巻き付けたりしたのでは、その後の処理において、当該強化繊維布が容易に位置ずれし、最終的に得られる外層部材表面の形状が歪なものとなって、その形状精度が悪いものとなる。   Propeller blades have few simple surface shapes, but rather have so-called free-form surfaces with various curvatures. When the outer layer member including the reinforcing fiber cloth is positioned on the surface of the inner member having such a free-form surface, when the thermosetting resin is impregnated and heated and cured, the reinforcing fiber cloth is simply used as the inner member. If it is wound, the reinforcing fiber cloth is easily displaced in the subsequent processing, and the shape of the surface of the outer layer member finally obtained is distorted, resulting in poor shape accuracy.

そこで、本発明では、上記のように、強化繊維布に予め粒状の熱可塑性樹脂を分散して付着させ、この強化繊維布を加熱しながら前記一対の内部部材に貼り付けるようにしている。熱可塑性樹脂を加熱することで、これが溶融してバインダーの役割を果たすため、前記強化繊維布が内部部材表面にしっかりと接着される。したがって、その後の処理において、当該強化繊維布が位置ずれするおそれはなく、最終的に得られる外層部材表面の形状精度が良好なものとなる。   Therefore, in the present invention, as described above, the granular thermoplastic resin is dispersed and adhered to the reinforcing fiber cloth in advance, and the reinforcing fiber cloth is attached to the pair of internal members while being heated. By heating the thermoplastic resin, it melts and acts as a binder, so that the reinforcing fiber cloth is firmly bonded to the inner member surface. Therefore, in the subsequent processing, the reinforcing fiber cloth is not likely to be displaced, and the shape accuracy of the outer layer member surface finally obtained is good.

また、従来のような型材が不要であり、製造工程も簡便化されるため、その製造コストを低減することができる。   In addition, since a conventional mold material is unnecessary and the manufacturing process is simplified, the manufacturing cost can be reduced.

尚、前記熱可塑性樹脂は、良好な接着性を得るには、その粒径が0.5mm以上であるのが好ましい。一方、あまりにも粒径が大きいと、含浸される熱硬化性樹脂の熱硬化後に層間剥離破壊を引き起こす可能性があるため、前記粒径は、2.0mm以下であるのが好ましい。また、前記接着性と層間剥離破壊とを考慮すると、強化繊維布に付着させる熱可塑性樹脂の量は、50〜300g/mの範囲内であるのが好ましく、更に、150〜250g/mの範囲内であるのがより好ましい。 The thermoplastic resin preferably has a particle size of 0.5 mm or more in order to obtain good adhesion. On the other hand, if the particle size is too large, delamination failure may occur after thermosetting of the thermosetting resin to be impregnated. Therefore, the particle size is preferably 2.0 mm or less. In consideration of the above adhesion and delamination fracture, the amount of the thermoplastic resin to be adhered to the reinforcing fiber cloth is preferably in the range of 50 to 300 g / m 2, further, 150 to 250 g / m 2 It is more preferable that it is within the range.

また、熱可塑性樹脂は、室温での取り扱いが良好であること、溶融のための加熱によって内部部材に悪影響を与えないこと等が求められ、このため、その融点が40℃〜80℃の範囲内のものであるのが好ましい。   In addition, the thermoplastic resin is required to have good handling at room temperature and not to adversely affect the internal member by heating for melting. For this reason, its melting point is in the range of 40 ° C to 80 ° C. Are preferred.

また、上述した内部部材の補強は、まず、一対の内部部材を、その接合面の全域、若しくは周縁部を除く前記接合面で相互に接着した後、
熱硬化性樹脂を含浸させた強化繊維布を、前記一対の内部部材の周縁部において、その一方から他方に跨るように該内部部材表面に貼り付け、
ついで、前記内部部材及び熱硬化性樹脂含浸の強化繊維布から構成される中間品を真空バッグに封入し、この真空バッグ内の気体を排気して内部を真空にした後、
前記熱硬化性樹脂を加熱して硬化させることよっても、好適に実現することができる。
In addition, the reinforcement of the above-described internal member is performed by first bonding a pair of internal members to each other on the entire joint surface or the joint surface excluding the peripheral portion.
A reinforcing fiber cloth impregnated with a thermosetting resin is attached to the inner member surface so as to straddle the other one from the peripheral edge of the pair of inner members,
Then, an intermediate product composed of the internal member and the reinforcing fiber cloth impregnated with the thermosetting resin is enclosed in a vacuum bag, and after the gas in the vacuum bag is exhausted to make the inside vacuum,
It can also be suitably realized by heating and curing the thermosetting resin.

予め強化繊維布に熱硬化性樹脂を含浸させることで、自由曲面を有する内部部材表面に対して、当該強化繊維布をしっかりと貼り付けることができ、したがって、その後の処理において、強化繊維布が位置ずれするおそれはなく、最終的に得られる外層部材表面の形状精度を良好なものとすることができる。   By impregnating the reinforcing fiber cloth with the thermosetting resin in advance, the reinforcing fiber cloth can be firmly attached to the surface of the internal member having a free-form surface. There is no possibility of displacement, and the shape accuracy of the outer layer member surface finally obtained can be made favorable.

また、従来のような型材が不要であり、製造工程も簡便化されるため、その製造コストを低減することができる。   In addition, since a conventional mold material is unnecessary and the manufacturing process is simplified, the manufacturing cost can be reduced.

以上詳述したように、本発明に係るプロペラ翼体によれば、補強用の外層部材が、一対の内部部材の周縁部において、その一方から他方に跨るように当該内部部材に接着されるので、同接合部を外層部材によって確実に補強することができる。したがって、このプロペラを、船舶など、固形物と衝突する可能性が高いものに適用しても、この衝突に起因した翼体前縁部の損傷を効果的に抑制することができる。   As described above in detail, according to the propeller wing body according to the present invention, the outer layer member for reinforcement is bonded to the inner member so as to straddle from one to the other at the peripheral edge of the pair of inner members. The joint portion can be reliably reinforced by the outer layer member. Therefore, even if this propeller is applied to a ship or the like that is highly likely to collide with a solid object, damage to the wing body leading edge due to the collision can be effectively suppressed.

また、本発明に係るプロペラ翼体の製造方法によれば、強化繊維布を直接、内部部材に接着させるようにしているので、従来のような型材が不要であり、製造工程も簡便化されるため、その製造コストを低減することができる。   Further, according to the method for manufacturing a propeller blade according to the present invention, the reinforcing fiber cloth is directly bonded to the internal member, so that a conventional mold material is not required and the manufacturing process is simplified. Therefore, the manufacturing cost can be reduced.

本発明の一実施形態に係るプロペラを示す部分斜視図である。It is a fragmentary perspective view which shows the propeller which concerns on one Embodiment of this invention. 図1に示した翼体の縦断面図である。It is a longitudinal cross-sectional view of the wing | blade body shown in FIG. 本実施形態に係る製造方法を説明するための説明図である。It is explanatory drawing for demonstrating the manufacturing method which concerns on this embodiment. 他の実施形態に係る製造方法を説明するための説明図である。It is explanatory drawing for demonstrating the manufacturing method which concerns on other embodiment. 翼体の基本的な構造を説明するための断面図である。It is sectional drawing for demonstrating the basic structure of a wing | blade body. 従来の製造方法を説明するための説明図である。It is explanatory drawing for demonstrating the conventional manufacturing method.

以下、本発明の具体的な実施の形態ついて、図面を参照して説明する。   Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

図1に示すように、本例のプロペラ1は、ハブ2と、このハブ2の外周部に放射状に固定される複数の翼体5とから構成される。尚、図1には、一つの翼体5のみを図示し、他の翼体5については、図示を省略している。   As shown in FIG. 1, the propeller 1 of this example includes a hub 2 and a plurality of wing bodies 5 that are radially fixed to the outer peripheral portion of the hub 2. In FIG. 1, only one wing body 5 is shown, and the other wing bodies 5 are not shown.

図2に示すように、翼体5は、樹脂製又は金属製の芯材6と、芯材6を両側から挟み込むように該芯材6に接着され、且つその周縁を含む接合面同士が接着される繊維強化樹脂製の一対の内部部材7,8と、内部部材7,8の表面に接着される補強用の外層部材10とから構成される。   As shown in FIG. 2, the wing body 5 is bonded to a core member 6 made of resin or metal and the core member 6 so as to sandwich the core member 6 from both sides, and bonding surfaces including the periphery thereof are bonded to each other. And a pair of inner members 7 and 8 made of fiber reinforced resin, and a reinforcing outer layer member 10 bonded to the surface of the inner members 7 and 8.

芯材6は、ハブ2の外周部に固定される基部6aと、この基部6aから外方に延出するように形成された支持部6bとから構成され、樹脂製の場合には、型成形によって製造され、使用される樹脂は、その目的に応じて適宜選択されるが、例えば、エポキシ樹脂、フェノール樹脂、不飽和ポリエステル樹脂、アミノ樹脂などの熱硬化性樹脂を用いることができる。また、金属製の場合には、適宜金属加工によって製造することができる。   The core member 6 is composed of a base portion 6a fixed to the outer peripheral portion of the hub 2 and a support portion 6b formed so as to extend outward from the base portion 6a. The resin produced and used according to the method is appropriately selected according to the purpose, and for example, a thermosetting resin such as an epoxy resin, a phenol resin, an unsaturated polyester resin, and an amino resin can be used. Moreover, in the case of metal, it can be manufactured by metal processing as appropriate.

また、内部部材7,8は、強化繊維含有の樹脂を用いた型成形によって製造され、この樹脂も、その目的に応じて適宜選択されるが、例えば、エポキシ樹脂、フェノール樹脂、不飽和ポリエステル樹脂、アミノ樹脂などの熱硬化性樹脂を用いることができる。また、強化繊維としては、炭素繊維、ガラス繊維、アラミド繊維及びポリアリレート繊維を例示することができる。   The internal members 7 and 8 are manufactured by molding using a resin containing reinforcing fibers, and this resin is also appropriately selected according to the purpose. For example, an epoxy resin, a phenol resin, an unsaturated polyester resin is used. A thermosetting resin such as an amino resin can be used. Examples of reinforcing fibers include carbon fibers, glass fibers, aramid fibers, and polyarylate fibers.

前記外層部材10は、熱硬化性樹脂を含浸させた強化繊維布を加熱、硬化させることによって製造され、前記一対の内部部材7,8の周縁部において、一方から他方に跨るように当該一対の内部部材7,8表面に接着される。尚、強化繊維としては、炭素繊維、ガラス繊維、アラミド繊維及びポリアリレート繊維の内から選択され、これを織布、若しくは不織布などシート状に形成した強化繊維布の一種、若しくは二種以上が強化材として使用される。   The outer layer member 10 is manufactured by heating and curing a reinforcing fiber cloth impregnated with a thermosetting resin, and the pair of inner members 7 and 8 has a pair of the pair of inner members 7 and 8 so as to straddle from one to the other. Bonded to the surface of the internal members 7 and 8. The reinforcing fiber is selected from carbon fiber, glass fiber, aramid fiber and polyarylate fiber, and one or two or more types of reinforcing fiber cloth formed into a sheet shape such as woven fabric or non-woven fabric are reinforced. Used as a material.

次に、以上の構造を備えた翼体5のより具体的な製造方法について、図3を参照しながら説明する。尚、図3は、図2における矢視A方向の図であるが、便宜上、内部部材7,8は、その表面が自由曲面ではなく、平坦な面を有するものとして、これを図示している。   Next, a more specific manufacturing method of the wing body 5 having the above structure will be described with reference to FIG. FIG. 3 is a view in the direction of arrow A in FIG. 2, but for convenience, the inner members 7 and 8 are illustrated as having a flat surface instead of a free curved surface. .

まず、予め、前記芯材6及び前記一対の内部部材7,8、並びに粒状の熱可塑性樹脂を分散して表面に付着させた強化繊維布を用意する。   First, a reinforcing fiber cloth is prepared in which the core material 6 and the pair of internal members 7 and 8 and the granular thermoplastic resin are dispersed and adhered to the surface in advance.

そして、図3(a)に示すように、内部部材7,8を、芯材6の支持部6bの両側からこれを挟み込むように当該支持部6b及び基部6aに接着するとともに、この内部部材7,8の周縁を含む接合面同士を接着する。尚、接着には、エポキシ樹脂系接着剤、アクリル樹脂系接着剤、ウレタン樹脂系接着剤などを使用することができる。   3A, the internal members 7 and 8 are bonded to the support portion 6b and the base portion 6a so as to sandwich the internal members 7 and 8 from both sides of the support portion 6b of the core member 6, and the internal member 7 , 8 are bonded together including the peripheral edges. In addition, an epoxy resin adhesive, an acrylic resin adhesive, a urethane resin adhesive, or the like can be used for bonding.

ついで、図3(b)に示すように、前記強化繊維布を加熱しながら前記内部部材7,8に貼り付ける。上記のように、強化繊維布には粒状の熱可塑性樹脂が分散して表面に付着されており、加熱することでこの熱可塑性樹脂が溶融し、その作用によって強化繊維布が内部部材7,8表面に貼り付けられる。   Next, as shown in FIG. 3B, the reinforcing fiber cloth is attached to the internal members 7 and 8 while being heated. As described above, the particulate thermoplastic resin is dispersed and adhered to the surface of the reinforcing fiber cloth, and when heated, the thermoplastic resin is melted, and the reinforcing fiber cloth is transformed into the inner members 7 and 8 by its action. Affixed to the surface.

その際、強化繊維布を、前記一対の内部部材7,8の周縁部において、その一方から他方に跨るように当該内部部材7,8の表面に貼り付ける。図3(b)に示した例では、内部部材7,8を3つの領域に分け、それぞれの領域について、強化繊維布11,12,13を貼り付けているが、分割する領域はこれに限るものではなく、より細かく、或いは逆に大まかでも良い。また、各強化繊維布11,12,13は、それぞれ単層若しくは積層した状態であっても良い。また、強化繊維布11,12は、その両端が内部部材7,8表面において付き合わされるように貼り付けられ、強化繊維布13は、その周縁が強化繊維布12の端縁に接合するように貼り付けられ、これら強化繊維布11,12,13は、その表面が全体として平坦になるように調整される。   At that time, the reinforcing fiber cloth is attached to the surface of the internal members 7 and 8 so as to straddle the other end of the pair of internal members 7 and 8 from one to the other. In the example shown in FIG. 3B, the internal members 7 and 8 are divided into three regions, and the reinforcing fiber cloths 11, 12, and 13 are attached to the respective regions. However, the region to be divided is limited to this. It is not a thing, but it may be finer or vice versa. In addition, each of the reinforcing fiber cloths 11, 12, and 13 may be a single layer or a laminated state. Further, the reinforcing fiber cloths 11 and 12 are attached so that both ends thereof are brought together on the surface of the internal members 7 and 8, and the reinforcing fiber cloth 13 is bonded to the edge of the reinforcing fiber cloth 12. The reinforcing fiber cloths 11, 12, and 13 are pasted and adjusted so that the surfaces thereof are flat as a whole.

ついで、図3(c)に示すように、前記芯材6、内部部材7,8及び強化繊維布11,12,13から構成される中間品を真空バッグ15内に封入し、真空バッグ15内の気体を排気部16から排気して内部を真空にした後、注入部17から真空バッグ15内に熱硬化性樹脂を注入して強化繊維布11,12,13に含浸させる。尚、注入する熱硬化性樹脂には、エポキシ樹脂、フェノール樹脂、不飽和ポリエステル樹脂、アミノ樹脂などを用いることができる。   Next, as shown in FIG. 3 (c), an intermediate product composed of the core material 6, the inner members 7, 8 and the reinforcing fiber cloths 11, 12, 13 is enclosed in a vacuum bag 15, After exhausting the gas from the exhaust part 16 and evacuating the interior, a thermosetting resin is injected into the vacuum bag 15 from the injection part 17 to impregnate the reinforcing fiber cloths 11, 12, and 13. In addition, an epoxy resin, a phenol resin, an unsaturated polyester resin, an amino resin, etc. can be used for the thermosetting resin to inject | pour.

ついで、熱硬化性樹脂注入後の真空バッグ15を加熱炉に投入して、注入した熱硬化性樹脂が硬化する温度まで加熱し、当該熱硬化性樹脂を硬化させる。これにより、内部部材7,8の表面に外層部材10が接着された翼体5が成形される。この後、真空バッグ15を炉内から取り出し、更に、真空バッグ15内から成形の完了した翼体5を取り出す。以上により、翼体5が製造される。   Next, the vacuum bag 15 after injecting the thermosetting resin is put into a heating furnace and heated to a temperature at which the injected thermosetting resin is cured to cure the thermosetting resin. Thereby, the wing body 5 in which the outer layer member 10 is bonded to the surfaces of the inner members 7 and 8 is formed. Thereafter, the vacuum bag 15 is taken out from the furnace, and the blade body 5 that has been molded is taken out from the vacuum bag 15. Thus, the wing body 5 is manufactured.

このようにして製造された翼体5は、補強用の外層部材10が、一対の内部部材7,8の周縁部において、その一方から他方に跨るように当該内部部材7,8に接着されるので、同周縁部を外層部材10によって確実に補強することができる。したがって、このプロペラ1を、船舶など、固形物と衝突する可能性が高いものに適用しても、この衝突によって、翼体5の前縁部が損傷するのを効果的に抑制することができる。   The wing body 5 manufactured in this manner is bonded to the inner members 7 and 8 so that the outer layer member 10 for reinforcement straddles one end of the pair of inner members 7 and 8 from one to the other. Therefore, the peripheral edge can be reliably reinforced by the outer layer member 10. Therefore, even when this propeller 1 is applied to a ship or the like that has a high possibility of colliding with a solid object, it is possible to effectively suppress damage to the front edge portion of the wing body 5 due to the collision. .

また、翼体5は、その表面形状が単純なものは少なく、曲率が多様に変化する所謂自由曲面形状を備えたものが多いが、本例では、強化繊維布に予め粒状の熱可塑性樹脂を分散して付着させ、この強化繊維布を加熱しながら前記一対の内部部材7,8に貼り付けるようにしているので、強化繊維布を内部部材7,8の表面にしっかりと貼り付けることができ、外層部材10表面の形状精度を良好なものとすることができる。   In addition, the wing body 5 has few simple surface shapes and many have a so-called free-form surface shape whose curvature varies in various ways. In this example, a granular thermoplastic resin is previously applied to the reinforcing fiber cloth. Since the reinforcing fiber cloth is adhered to the pair of internal members 7 and 8 while being dispersed and adhered, the reinforcing fiber cloth can be firmly attached to the surfaces of the internal members 7 and 8. The shape accuracy of the outer layer member 10 surface can be improved.

また、外層部材10の成形にあたり、従来のような型材が不要であり、製造工程も簡便化されるため、その製造コストを低減することができる。   Further, in forming the outer layer member 10, a conventional mold material is unnecessary, and the manufacturing process is simplified, so that the manufacturing cost can be reduced.

尚、前記熱可塑性樹脂は、良好な接着性を得るには、その粒径は0.5mm以上であるのが好ましい。一方、あまりにも粒径が大きいと、含浸される熱硬化性樹脂の熱硬化後に層間剥離破壊を引き起こす可能性があるため、前記粒径は、2.0mm以下であるのが好ましい。また、前記接着性と層間剥離破壊とを考慮すると、強化繊維布に付着させる熱可塑性樹脂の量は、50〜300g/mの範囲内であるのが好ましく、更に、150〜250g/mの範囲内であるのがより好ましい。 The thermoplastic resin preferably has a particle size of 0.5 mm or more in order to obtain good adhesion. On the other hand, if the particle size is too large, delamination failure may occur after thermosetting of the thermosetting resin to be impregnated. Therefore, the particle size is preferably 2.0 mm or less. In consideration of the above adhesion and delamination fracture, the amount of the thermoplastic resin to be adhered to the reinforcing fiber cloth is preferably in the range of 50 to 300 g / m 2, further, 150 to 250 g / m 2 It is more preferable that it is within the range.

また、熱可塑性樹脂は、溶融によって良好な接着性を発現するものであれば、どのようなものでも良いが、室温での取り扱いが良好で、溶融のための加熱によって内部部材7,8に悪影響を与えない必要があり、このため、その融点が40℃〜80℃の範囲内であるのものが好ましい。このような熱可塑性樹脂としては、エチレン酢酸ビニル系樹脂、ポリオレフィン系樹脂等を例示することができる。   The thermoplastic resin may be any material as long as it exhibits good adhesiveness by melting, but it can be handled easily at room temperature and adversely affects the internal members 7 and 8 by heating for melting. For this reason, the thing whose melting | fusing point exists in the range of 40 to 80 degreeC is preferable. Examples of such thermoplastic resins include ethylene vinyl acetate resins and polyolefin resins.

以上、本発明の一実施形態について説明したが、本発明が採り得る具体的な態様は、何ら、これに限定されるものではない。   As mentioned above, although one Embodiment of this invention was described, the specific aspect which this invention can take is not limited to this at all.

例えば、前記外層部材10は、以下の方法によっても、これを製造することができる。
即ち、まず、予め、前記芯材6及び前記一対の内部部材7,8を用意し、上例と同様にして、内部部材7,8を、芯材6の支持部6bの両側からこれを挟み込むように当該支持部6b及び基部6aに接着するとともに、この内部部材7,8の周縁を含む接合面同士を接着する(図3(a))。
For example, the outer layer member 10 can be manufactured by the following method.
That is, first, the core material 6 and the pair of internal members 7 and 8 are prepared in advance, and the internal members 7 and 8 are sandwiched from both sides of the support portion 6b of the core material 6 in the same manner as in the above example. In this manner, the bonding surfaces including the peripheral edges of the internal members 7 and 8 are bonded together (FIG. 3A).

ついで、図4に示すように、所定の大きさに裁断し、予め熱硬化際樹脂を含浸させた強化繊維布21−33を、前記内部部材7,8に貼り付ける。その際、内部部材7,8の周縁部に貼り付ける強化繊維布21−27については、内部部材7,8の一方から他方に跨るように当該内部部材7,8に貼り付ける。また、各強化繊維布21−33は、それぞれ隣接するものと端縁同士が付き合わされるように貼り付けられ、その表面が平坦になるように調整される。尚、強化繊維布31−33は、裏側の内部部材7に貼り付けられるもので、強化繊維布28−30に対応している。また、言うまでも無く、裁断される強化繊維布の大きさは、図4に示した例に限られるものではなく、内部部材7,8の形状等に応じて適宜設定される。また、各強化繊維布21−33は単層若しくは積層状態のものでも良い。   Next, as shown in FIG. 4, a reinforcing fiber cloth 21-33 that is cut into a predetermined size and is impregnated with a resin in advance during thermosetting is attached to the internal members 7 and 8. At that time, the reinforcing fiber cloths 21 to 27 to be attached to the peripheral portions of the internal members 7 and 8 are attached to the internal members 7 and 8 so as to extend from one of the internal members 7 and 8 to the other. In addition, the reinforcing fiber cloths 21 to 33 are attached so that the edges thereof are adjacent to each other, and are adjusted so that the surfaces thereof are flat. The reinforcing fiber cloth 31-33 is attached to the inner member 7 on the back side and corresponds to the reinforcing fiber cloth 28-30. Needless to say, the size of the reinforcing fiber cloth to be cut is not limited to the example shown in FIG. 4, and is appropriately set according to the shape of the internal members 7 and 8. Each reinforcing fiber cloth 21-33 may be a single layer or a laminated state.

このようにして、強化繊維布21−33を内部部材7,8に貼り付けた後、上例と同様にして、芯材6、内部部材7,8及び強化繊維布21−33から構成される中間品を真空バッグ15内に封入し、真空バッグ15内の気体を排気部16から排気して内部を真空にした後、当該真空バッグ15を加熱炉に投入し、含浸させた熱硬化性樹脂が硬化する温度まで加熱して、当該熱硬化性樹脂を硬化させる。これにより、内部部材7,8の表面に外層部材10’が接着された翼体5’が成形される。この後、真空バッグ15を炉内から取り出し、更に、真空バッグ15内から成形の完了した翼体5’を取り出す。以上により、翼体5’が製造される。   After the reinforcing fiber cloth 21-33 is attached to the internal members 7 and 8 in this way, the core material 6, the internal members 7 and 8 and the reinforcing fiber cloth 21-33 are configured in the same manner as in the above example. The intermediate product is sealed in the vacuum bag 15, the gas in the vacuum bag 15 is exhausted from the exhaust unit 16 to make the inside vacuum, and then the vacuum bag 15 is put into a heating furnace and impregnated thermosetting resin. Is heated to a temperature at which the thermosetting resin cures to cure the thermosetting resin. As a result, the wing body 5 ′ in which the outer layer member 10 ′ is bonded to the surfaces of the inner members 7 and 8 is formed. Thereafter, the vacuum bag 15 is taken out from the furnace, and the blade body 5 ′ having been molded is taken out from the vacuum bag 15. Thus, the wing body 5 'is manufactured.

この方法によって得られる翼体5’も、補強用の外層部材10’が、一対の内部部材7,8の周縁部において、その一方から他方に跨るように当該内部部材7,8に接着されるので、同周縁部を外層部材10’によって確実に補強することができ、これを、船舶など、固形物と衝突する可能性が高いものに適用しても、この衝突によって、翼体5’の前縁部が損傷するのを効果的に抑制することができる。   The wing body 5 ′ obtained by this method is also bonded to the inner member 7, 8 so that the outer layer member 10 ′ for reinforcement extends from one to the other at the peripheral edge of the pair of inner members 7, 8. Therefore, the peripheral edge portion can be reliably reinforced by the outer layer member 10 ′, and even if this is applied to a thing such as a ship that has a high possibility of colliding with a solid matter, the collision of the wing body 5 ′ It is possible to effectively suppress damage to the front edge portion.

また、予め熱硬化性樹脂を含浸させた強化繊維布を内部部材7,8に貼り付けるようにしているので、強化繊維布を内部部材7,8の表面にしっかりと貼り付けることができ、外層部材10’表面の形状精度を良好なものとすることができる。また、外層部材10’を成形するための型材が不要であり、製造工程も簡便化されるため、その製造コストを低減することができる。   In addition, since the reinforcing fiber cloth impregnated with the thermosetting resin in advance is attached to the inner members 7 and 8, the reinforcing fiber cloth can be firmly attached to the surfaces of the inner members 7 and 8, and the outer layer The shape accuracy of the surface of the member 10 ′ can be improved. In addition, a mold material for molding the outer layer member 10 ′ is unnecessary, and the manufacturing process is simplified, so that the manufacturing cost can be reduced.

また、上例では、内部部材7,8の周縁を含む接合面同士を接着した後、外層部材10を貼り付けるようにしたが、これに限るものではなく、内部部材7,8の周縁部を除く接合面同士を接着した後、外層部材10貼り付ける際に、同周縁部を接着するようにしても良い。   Further, in the above example, the outer layer member 10 is pasted after the bonding surfaces including the peripheral edges of the internal members 7 and 8 are bonded together. However, the present invention is not limited to this, and the peripheral portions of the internal members 7 and 8 are You may make it adhere | attach the same peripheral part, when adhering the outer surface member 10 after adhere | attaching the joining surfaces except.

また、上例では、翼体5が芯材6を備えるものについて説明したが、翼体5は、必ずしも芯材6を備えている必要は無く、当該芯材6を備えないものであっても良い。   In the above example, the wing body 5 includes the core material 6. However, the wing body 5 does not necessarily include the core material 6, and may not include the core material 6. good.

1 プロペラ
2 ハブ
5 翼体
6 芯材
7,8 内部部材
10 外層部材
15 真空バッグ
16 排気部
17 注入部
DESCRIPTION OF SYMBOLS 1 Propeller 2 Hub 5 Wing body 6 Core material 7, 8 Inner member 10 Outer layer member 15 Vacuum bag 16 Exhaust part 17 Injection | pouring part

Claims (4)

プロペラを構成する翼体であって、
接合面の全域、若しくは周縁部を除く前記接合面が相互に接着されて一体化される一対の内部部材と、
前記内部部材の表面に接着される補強用の外層部材とを含んで構成され、
前記外層部材は、強化繊維布と、該強化繊維布に含浸された熱硬化性樹脂とから構成されるとともに、前記一対の内部部材の周縁部において、一方から他方に跨るように該一対の内部部材表面に接着されていることを特徴とするプロペラの翼体。
A wing body constituting a propeller,
A pair of internal members that are bonded together to be integrated with each other except the entire surface of the bonding surface or the peripheral portion; and
An outer layer member for reinforcement bonded to the surface of the inner member,
The outer layer member is composed of a reinforcing fiber cloth and a thermosetting resin impregnated in the reinforcing fiber cloth, and the pair of internal members extends from one to the other at the peripheral edge of the pair of internal members. A propeller wing body, which is bonded to a member surface.
プロペラを構成する翼体の製造方法であって、
一対の内部部材を、その接合面の全域、若しくは周縁部を除く前記接合面で相互に接着した後、
強化繊維布、及び該強化繊維布に含浸される熱硬化性樹脂から構成される外層部材を、前記一対の内部部材の周縁部において、その一方から他方に跨るように該内部部材に接着するようにしたことを特徴とするプロペラ翼体の製造方法。
A method of manufacturing a wing body constituting a propeller,
After bonding a pair of internal members to each other on the entire joint surface or the joint surface excluding the peripheral edge,
An outer layer member composed of a reinforcing fiber cloth and a thermosetting resin impregnated in the reinforcing fiber cloth is adhered to the inner member so as to straddle the other end of the pair of inner members from one to the other. A method for manufacturing a propeller blade, characterized in that
プロペラを構成する翼体の製造方法であって、
一対の内部部材を、その接合面の全域、若しくは周縁部を除く前記接合面で相互に接着した後、
粒状の熱可塑性樹脂を分散して付着させた強化繊維布を、加熱しながら、前記一対の内部部材の周縁部において、その一方から他方に跨るように該内部部材表面に貼り付け、
ついで、前記内部部材及び強化繊維布から構成される中間品を真空バッグに封入し、該真空バッグ内の気体を排気して内部を真空にした後、該真空バッグ内に熱硬化性樹脂を注入して前記強化繊維布に含浸させ、
この後、前記熱硬化性樹脂を加熱して硬化させるようにしたことを特徴とするプロペラ翼体の製造方法。
A method of manufacturing a wing body constituting a propeller,
After bonding a pair of internal members to each other on the entire joint surface or the joint surface excluding the peripheral edge,
Reinforced fiber cloth in which granular thermoplastic resin is dispersed and adhered, while heating, at the peripheral edge of the pair of internal members, affixed to the surface of the internal member so as to straddle the other,
Next, an intermediate product composed of the internal member and the reinforcing fiber cloth is sealed in a vacuum bag, the gas in the vacuum bag is exhausted to evacuate the interior, and a thermosetting resin is injected into the vacuum bag. And impregnating the reinforcing fiber cloth,
Thereafter, the method for producing a propeller blade body is characterized in that the thermosetting resin is heated and cured.
プロペラを構成する翼体の製造方法であって、
一対の内部部材を、その接合面の全域、若しくは周縁部を除く前記接合面で相互に接着した後、
熱硬化性樹脂を含浸させた強化繊維布を、前記一対の内部部材の周縁部において、その一方から他方に跨るように該内部部材表面に貼り付け、
ついで、前記内部部材及び熱硬化性樹脂含浸の強化繊維布から構成される中間品を真空バッグに封入し、該真空バッグ内の気体を排気して内部を真空にした後、
前記熱硬化性樹脂を加熱して硬化させるようにしたことを特徴とするプロペラ翼体の製造方法。
A method of manufacturing a wing body constituting a propeller,
After bonding a pair of internal members to each other on the entire joint surface or the joint surface excluding the peripheral edge,
A reinforcing fiber cloth impregnated with a thermosetting resin is attached to the inner member surface so as to straddle the other one from the peripheral edge of the pair of inner members,
Next, an intermediate product composed of the internal member and the reinforcing fiber cloth impregnated with the thermosetting resin is enclosed in a vacuum bag, and the inside of the vacuum bag is evacuated to make the inside vacuum,
A method of manufacturing a propeller blade, wherein the thermosetting resin is heated and cured.
JP2012155219A 2012-07-11 2012-07-11 Propeller blade body and method of manufacturing the same Pending JP2014015159A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015180560A (en) * 2014-03-07 2015-10-15 ナカシマプロペラ株式会社 marine propeller
KR20190044176A (en) * 2017-10-20 2019-04-30 코리아터빈(주) Propeller of ship using composite materials and manufacturng of the same
CN112937819A (en) * 2021-03-30 2021-06-11 大连海事大学 Corrosion-resistant and impact-resistant marine hybrid fiber composite propeller blade and preparation method thereof

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JPH07228291A (en) * 1994-02-16 1995-08-29 Toray Ind Inc Hydrofoil
JPH11274833A (en) * 1998-03-23 1999-10-08 Mitsubishi Electric Corp Sandwich panel for planar antenna
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JPS5034674A (en) * 1973-07-31 1975-04-03
JPH04196181A (en) * 1990-11-26 1992-07-15 Toshiba Corp Cryogenic vessel
JPH07228291A (en) * 1994-02-16 1995-08-29 Toray Ind Inc Hydrofoil
JPH11274833A (en) * 1998-03-23 1999-10-08 Mitsubishi Electric Corp Sandwich panel for planar antenna
JPH11311101A (en) * 1998-04-28 1999-11-09 Toray Ind Inc Fiber reinforced plastic blade structure
JP2006200702A (en) * 2005-01-24 2006-08-03 Honda Motor Co Ltd Shock absorbing member
JP2010264944A (en) * 2009-05-18 2010-11-25 Nakashima Propeller Co Ltd Marine propeller blade and related forming method
JP2011051515A (en) * 2009-09-03 2011-03-17 Sumitomo Precision Prod Co Ltd Marine propeller

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015180560A (en) * 2014-03-07 2015-10-15 ナカシマプロペラ株式会社 marine propeller
KR20190044176A (en) * 2017-10-20 2019-04-30 코리아터빈(주) Propeller of ship using composite materials and manufacturng of the same
KR102084764B1 (en) * 2017-10-20 2020-04-23 코리아터빈(주) Manufacturng for propeller of ship using composite materials
CN112937819A (en) * 2021-03-30 2021-06-11 大连海事大学 Corrosion-resistant and impact-resistant marine hybrid fiber composite propeller blade and preparation method thereof
CN112937819B (en) * 2021-03-30 2024-05-14 大连海事大学 Corrosion-resistant impact-resistant marine hybrid fiber composite propeller blade and preparation method thereof

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