JP2012232692A5 - - Google Patents
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- JP2012232692A5 JP2012232692A5 JP2011103517A JP2011103517A JP2012232692A5 JP 2012232692 A5 JP2012232692 A5 JP 2012232692A5 JP 2011103517 A JP2011103517 A JP 2011103517A JP 2011103517 A JP2011103517 A JP 2011103517A JP 2012232692 A5 JP2012232692 A5 JP 2012232692A5
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Description
そこで、本発明者らは、従来、樹脂製キャップの内部に充填されていたシーラント材に着目し、キャップをシーラント材料で成形することに想到した。シーラント材は樹脂材に比較して低コストであるが耐圧が樹脂材ほど高くないので、航空機の機体における比較的低い電流が流れる領域にシーラント製のキャップを好適に使用しうる。
かかる目的のもと、航空機の機体を構成する少なくとも２つの部材どうしを締結するファスナは、すべての部材に形成された孔を貫通しているファスナ本体と、ファスナ本体の部材から突出した先端部に装着される締結部材と、シーラント材料から形成された成形体からなり、ファスナ本体の先端部および締結部材を内包する開口を有する絶縁性のキャップと、キャップの開口の内側に充填されるシーラント材と、を備えている。
Therefore, the present inventors have focused on the sealant material that has been filled in the interior of the resin cap, and have come up with the idea of molding the cap with the sealant material. The sealant material is less expensive than the resin material, but the pressure resistance is not as high as that of the resin material. Therefore, a sealant cap can be suitably used in a region where a relatively low current flows in the aircraft body.
For this purpose, a fastener for fastening at least two members constituting an aircraft fuselage is provided with a fastener body penetrating a hole formed in all the members, and a tip portion protruding from the fastener body member. A fastening member to be mounted; an insulating cap having a molded body formed of a sealant material; an insulating cap having an opening that encloses the distal end portion of the fastener body and the fastening member; and a sealant material filled inside the opening of the cap; It is equipped with.
本発明においては、キャップが、開口の周縁部が他の部位と比較して厚肉に形成されていることが好ましい。In the present invention, it is preferable that the cap is formed so that the peripheral edge of the opening is thicker than other portions.
そうすると、キャップにおいて部材に対向する位置が、他の部分に比較して厚肉となるよう形成されている。この厚肉化によってキャップの縁の強度が高められているので、キャップの他の部分が柔軟であっても、部材に突き当てられたときに座屈しない。このことと、開口の周縁部の形成によってキャップと部材との接触面積が拡大されていることから、キャップを部材の表面に沿って容易に密着させることができる。したがって、安価なシーラント製のキャップを用いて低コスト化を図りつつ、キャップと部材との間にアークを封止して防爆性能を確保することができる。 If it does so, the position which opposes a member in a cap will be formed so that it may become thick compared with another part. The strength of the edge of the cap by thickening this is enhanced, it is flexible other parts of the cap, not buckle when it is abutted against the member. Since the contact area between the cap and the member is enlarged by this and the formation of the peripheral portion of the opening , the cap can be easily adhered along the surface of the member. Therefore, it is possible to ensure explosion-proof performance by sealing the arc between the cap and the member while reducing the cost by using an inexpensive sealant cap.
本発明において、開口の周縁部の少なくとも最外周部が、シーラント材によって覆われていることが好ましい。
この発明によれば、開口の周縁部の最外周部と部材との間がシールされることによって、部材へのキャップの密着力を強化することができる。
また、キャップと、開口の周縁部の少なくとも最外周部を覆うシーラント材とを熱膨張率が近似する同種のシーラント材とすれば、これらが温度変化時に剥離することを防止できるので、部材へのキャップの密着力を維持できる。
すなわち、開口の周縁部の少なくとも最外周部を覆うシーラント材の熱膨張率と、キャップのシーラント材料の熱膨張率とが近似することが好ましい。
In the present invention, it is preferable that at least the outermost peripheral portion of the peripheral edge portion of the opening is covered with a sealant material.
According to this invention, between the outermost peripheral part of the peripheral part of an opening and a member is sealed, the adhesive force of the cap to a member can be strengthened.
Also, if the cap and the sealant material covering at least the outermost peripheral part of the peripheral edge part of the opening are made of the same kind of sealant material having an approximate thermal expansion coefficient, they can be prevented from peeling at the time of temperature change. Cap adhesion can be maintained.
That is, it is preferable that the thermal expansion coefficient of the sealant material covering at least the outermost peripheral part of the peripheral edge portion of the opening is approximate to the thermal expansion coefficient of the cap sealant material.
開口の周縁部の少なくとも最外周部を覆うシーラント材は、キャップによりファスナ本体の先端部および締結部材を覆うときにキャップの開口の内側に充填されたシーラント材がキャップの開口の外側にはみ出したものであることが好ましい。
この発明によれば、キャップ内に充填されたシーラント材の一部を接合材としてキャップが部材に固定されるため、キャップの固定のためだけに用いられる接着剤、ねじ部材等の別部材を不要にできる。また、キャップによりファスナ本体および締結部材を覆う際にキャップの開口からシーラント材をはみ出させることによってキャップの固定が終了するので、別途、キャップを部材に固定する工程を不要にできる。すなわち、接着剤やねじ締めを必要とする構成に比べて、工程数が減少し、別部材のコストが掛からないので、よりコストダウンを図れる。
Sealant material covering at least the outermost portion of the peripheral edge of the opening, the sealant material filled inside the opening of the cap when the cover tip and the fastening member of the fastener body protrudes outside the opening of the cap by caps It is preferable.
According to this invention, since the cap is fixed to the member by using a part of the sealant material filled in the cap as a bonding material, separate members such as an adhesive and a screw member used only for fixing the cap are unnecessary. Can be. Further, when the cap body and the fastening member are covered with the cap, the fixing of the cap is completed by causing the sealant material to protrude from the opening of the cap, so that a separate step of fixing the cap to the member can be eliminated. That is, the number of processes is reduced and the cost of a separate member is not required compared to a configuration that requires an adhesive or screw tightening, so that the cost can be further reduced.
さらに、開口の周縁部が、はみ出したシーラント材によって部材に保持されていることが好ましい。すなわち、キャップの開口からはみ出したシーラント材が開口の周縁部の外周面側に若干量回り込み、はみ出したシーラント材と部材との間に開口の周縁部が保持される。これにより、キャップの部材への密着力を強化することができる。 Furthermore, it is preferable that the peripheral edge of the opening is held by the member by the protruding sealant material. That is, wraparound small amount to the outer peripheral surface of the peripheral portion of the sealant material protruding from the opening of the cap opening, the peripheral edge portion of the opening between the sealant material and the member protruding is held. Thereby, the adhesive force to the member of a cap can be strengthened.
本発明においては、キャップの開口の周縁部は、部材に対向する位置での外径が外周側に向けて拡径することで形成された脚部を備えることが好ましい。
つまり、脚部の形成により厚肉化する。
そして、開口の周縁部とはみ出したシーラント材とが、キャップによりファスナ本体の先端部および締結部材を覆うときに一体に成形されることが好ましい。
治具等を用いることにより、はみ出したシーラント材を開口の周縁部周辺に留め、そのシーラント材によって開口の周縁部を部材に対してより確実に密着させることができる。
また、本発明においては、キャップが、ファスナ本体の先端部に対向する平坦な底面部を有することが好ましい。
さらに、キャップの底面部には、ファスナの寸法を含む情報を示すマーキングが施されていることが好ましい。
In this invention, it is preferable that the peripheral part of the opening of a cap is provided with the leg part formed when the outer diameter in the position facing a member expands toward an outer peripheral side.
That is, it is thickened by forming the leg portion.
And it is preferable to shape | mold integrally when the sealant material which protruded from the peripheral part of opening covers the front-end | tip part and fastening member of a fastener main body with a cap.
By using the jig or the like, protruding the sealant material secured to the peripheral rim portion of the opening, it can be more reliably brought into close contact against the member a peripheral portion of the opening by the sealant material.
Moreover, in this invention, it is preferable that a cap has a flat bottom face part which opposes the front-end | tip part of a fastener main body.
Furthermore, it is preferable that the bottom part of the cap is marked with information indicating information including the dimensions of the fastener.
本発明の航空機組立品の製造方法は、ファスナ本体の部材から突出した先端部に締結部材を装着する締結部材装着工程と、開口の内側にシーラント材が充填されたキャップによってファスナ本体の先端部および締結部材を覆い、開口の周縁部を部材に突き当てるキャップ装着工程と、を実施する。 An aircraft assembly manufacturing method according to the present invention includes a fastening member mounting step of mounting a fastening member on a front end portion protruding from a member of the fastener main body, a front end portion of the fastener main body by a cap filled with a sealant material inside the opening, and A cap mounting step of covering the fastening member and abutting the periphery of the opening against the member.
上記の製造方法において、その周縁に拡径部が形成された凹部を有する治具を使用し、シーラント材が充填されたキャップが凹部に収容され、キャップの開口の周縁部が拡径部に収容された状態とし、治具によってキャップを部材に向けて突き当てることにより、キャップの開口からはみ出して拡径部内に溜まったシーラント材料を成形することが好ましい。 In the above manufacturing method, a jig having a recess having an enlarged diameter portion formed on the periphery thereof is used, the cap filled with the sealant material is accommodated in the recess, and the periphery of the opening of the cap is accommodated in the enlarged diameter portion. It is preferable to form the sealant material that protrudes from the opening of the cap and accumulates in the enlarged diameter portion by setting the cap in a state where the cap is pressed against the member with a jig.
この発明によれば、治具を用いることにより、はみ出したシーラント材を開口の周縁部の周辺に溜めて、そのシーラント材によって開口の周縁部を部材に確実に密着させることが可能となる。また、治具を用いることにより、キャップの部材への押さえ力が一定となり、シーラント材のはみ出し量も一定となるので、はみ出したシーラント材の寸法および形状を制御できる。さらに、キャップの部材への押さえ力がキャップの周方向において一定であることにより、はみ出したシーラント材の寸法および形状がキャップの全周に亘り均一となるので、キャップの部材への密着力を強化できる。 According to the present invention, by using the jig, the protruding sealant material can be accumulated around the periphery of the opening, and the periphery of the opening can be securely adhered to the member by the sealant material. Further, by using the jig, the pressing force to the cap member is constant, and the amount of the sealant material protruding is also constant, so that the size and shape of the protruding sealant material can be controlled. Furthermore, since the pressing force to the cap member is constant in the circumferential direction of the cap, the size and shape of the protruding sealant material are uniform over the entire circumference of the cap, so the adhesion to the cap member is enhanced. it can.
本発明の治具は、キャップを収容する凹部を有する。この凹部の周縁には、キャップの開口内に充填されたシーラント材の開口からはみ出した一部を溜める拡径部が形成されている。
このような治具が用いられることにより、はみ出したシーラント材を開口の周縁部の周辺に溜めて、そのシーラント材によって開口の周縁部を部材に確実に密着させることが可能となる。また、キャップの部材への押さえ力が一定となり、シーラント材のはみ出し量も一定となるので、はみ出したシーラント材の寸法や形状のバラツキを防止できる。さらに、はみ出したシーラント材の寸法および形状がキャップの全周に亘り均一となるので、開口の周縁部と部材との間の密着力を大きくできる。
加えて、治具によってキャップを部材に突き当てるだけでキャップが部材に固定されるので、工程数および部材コストの削減が可能となってコストダウンできる。
The jig of the present invention has a recess for accommodating the cap. A diameter-expanded portion is formed on the periphery of the recess to store a part protruding from the opening of the sealant material filled in the opening of the cap.
By using such a jig, the protruding sealant material can be accumulated around the periphery of the opening, and the periphery of the opening can be securely adhered to the member by the sealant material. In addition, since the pressing force to the cap member is constant and the amount of the sealant material protruding is also constant, variations in the size and shape of the protruding sealant material can be prevented. Furthermore, since the size and shape of the protruding sealant material are uniform over the entire circumference of the cap, the adhesion between the peripheral edge of the opening and the member can be increased.
In addition, since the cap is fixed to the member only by abutting the cap against the member with the jig, the number of steps and the member cost can be reduced, and the cost can be reduced.
Claims (15)
すべての前記部材に形成された孔を貫通しているファスナ本体と、
前記ファスナ本体の前記部材から突出した先端部に装着される締結部材と、
シーラント材料から形成された成形体からなり、前記ファスナ本体の前記先端部および前記締結部材を内包する開口を有する絶縁性のキャップと、
前記開口の内側に充填されるシーラント材と、を備えることを特徴とするファスナ。 A fastener for fastening at least two members constituting an aircraft fuselage,
A fastener body passing through holes formed in all the members;
A fastening member mounted on a tip portion protruding from the member of the fastener body;
An insulating cap comprising a molded body formed of a sealant material, and having an opening that encloses the tip portion of the fastener body and the fastening member;
Fasteners, wherein a sealant material is filled inside of the opening, that the Ru with the.
前記脚部と前記はみ出したシーラント材とが、前記キャップにより前記ファスナ本体の前記先端部および前記締結部材を覆うときに一体に成形される、請求項５または６に記載のファスナ。 The peripheral portion of the opening of the cap includes a leg portion formed by expanding the outer diameter toward the outer peripheral side at a position facing the member,
Wherein a sealant material protruding above the legs are integrally molded when covering the tip portion and the fastening member of the fastener body by said cap fastener of claim 5 or 6.
前記少なくとも２つの部材を締結する請求項１から１０のいずれか一項に記載のファスナと、を備えることを特徴とする航空機組立品。 At least two members constituting the aircraft body;
An aircraft assembly comprising: the fastener according to any one of claims 1 to 10 that fastens the at least two members.
前記ファスナ本体の前記部材から突出した先端部に前記締結部材を装着する締結部材装着工程と、
前記開口の内側に前記シーラント材が充填された前記キャップによって前記ファスナ本体の前記先端部および前記締結部材を覆い、前記開口の周縁部を前記部材に突き当てるキャップ装着工程と、を実施することを特徴とする航空機組立品の製造方法。 A method of manufacturing an aircraft assembly according to claim 11 ,
A fastening member mounting step of mounting the fastening member on a tip portion protruding from the member of the fastener body;
Performing a cap mounting step of covering the front end portion of the fastener main body and the fastening member with the cap filled with the sealant material inside the opening, and abutting the peripheral edge portion of the opening against the member. A method for manufacturing an aircraft assembly.
前記シーラント材が充填された前記キャップが前記凹部に収容された状態とし、前記治具によって前記キャップを前記部材に向けて突き当てることにより、前記キャップの開口からはみ出して前記拡径部内に溜まった前記シーラント材を成形する、請求項１３に記載の航空機組立品の製造方法。 Using a jig having a recess with an enlarged diameter portion formed on its periphery,
The cap filled with the sealant material is housed in the recess, and the cap is pressed against the member by the jig, so that the cap protrudes from the opening of the cap and accumulates in the enlarged diameter portion. The method of manufacturing an aircraft assembly according to claim 13 , wherein the sealant material is formed.
前記ファスナが、すべての前記部材に形成された孔を貫通しているファスナ本体と、前記ファスナ本体の前記部材から突出した先端部に装着される締結部材と、シーラント材料から形成された成形体からなり、前記ファスナ本体の前記先端部および前記締結部材を内包する開口を有する絶縁性のキャップと、を備えるものであり、
前記キャップを収容する凹部を有し、
前記凹部の周縁には、前記キャップの開口内に充填されたシーラント材の前記開口からはみ出した一部を溜める拡径部が形成されていることを特徴とする治具。 A jig used for manufacturing an aircraft assembly including at least two members constituting an aircraft fuselage and a fastener for fastening these members,
From the fastener main body which the said fastener has penetrated the hole formed in all the said members, the fastening member with which the front-end | tip part protruded from the said member of the said fastener main body, and the molded object formed from sealant material And an insulating cap having an opening that encloses the front end portion of the fastener main body and the fastening member, and
A recess for accommodating the cap;
A jig having a diameter-enlarged portion for storing a part of the sealant material filled in the opening of the cap that protrudes from the opening is formed on the periphery of the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011103517A JP5713789B2 (en) | 2011-05-06 | 2011-05-06 | Fastener, aircraft assembly, aircraft assembly manufacturing method, and jig |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2011103517A JP5713789B2 (en) | 2011-05-06 | 2011-05-06 | Fastener, aircraft assembly, aircraft assembly manufacturing method, and jig |
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| Publication Number | Publication Date |
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| JP2012232692A JP2012232692A (en) | 2012-11-29 |
| JP2012232692A5 true JP2012232692A5 (en) | 2014-02-27 |
| JP5713789B2 JP5713789B2 (en) | 2015-05-07 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9140291B2 (en) * | 2012-09-28 | 2015-09-22 | The Boeing Company | Apparatus for covering a fastener system |
| JP6162964B2 (en) * | 2013-01-29 | 2017-07-12 | 三菱航空機株式会社 | Lightning Fastener Sealant Layer Molding Jig, Lightning Fastener Sealant Layer Molding Method |
| JP6270317B2 (en) * | 2013-01-29 | 2018-01-31 | 三菱航空機株式会社 | Lightning Fastener Sealant Layer Molding Jig, Lightning Fastener Sealant Layer Molding Method, Lightning Fastener, Aircraft Wing, Lightning Fastener Molding Method, and Aircraft Wing Manufacturing Method |
| JP6190142B2 (en) * | 2013-04-12 | 2017-08-30 | 関西電力株式会社 | Construction method of anti-corrosion resin mold |
| US9188226B2 (en) * | 2013-07-15 | 2015-11-17 | The Boeing Company | Apparatus for installing a seal cap |
| JP6324784B2 (en) | 2014-03-24 | 2018-05-16 | 三菱重工業株式会社 | Cap, cap molding die, fixing structure using cap, and method of attaching cap |
| JP6434116B2 (en) * | 2017-12-18 | 2018-12-05 | 三菱重工業株式会社 | Cap and fixing structure using the cap |
| US11022164B2 (en) * | 2018-09-11 | 2021-06-01 | The Boeing Company | Double shell fastener caps |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3470787A (en) * | 1968-03-27 | 1969-10-07 | Us Army | Corrosion prevention device and method |
| GB1583141A (en) * | 1977-07-26 | 1981-01-21 | Kelseal Ltd | Sealing devices suitable for use on roofs and the structures so formed |
| EP0181483B1 (en) * | 1984-10-15 | 1990-01-10 | Ltv Aerospace And Defense Company | Method and apparatus for applying a precision amount of sealant to exposed fasteners |
| US4826380A (en) * | 1988-01-19 | 1989-05-02 | Ltv Aerospace & Defense Company | Pre-cast sealant dome and method |
| CN100370154C (en) * | 2001-09-28 | 2008-02-20 | Prc-德索托国际公司 | Premixed and frozen seal caps |
| JP5610758B2 (en) * | 2009-04-02 | 2014-10-22 | 三菱航空機株式会社 | Lightning-resistant fastener, cap, lightning-fastener installation method, aircraft |
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