WO2011099275A1 - 開口部の閉塞部材 - Google Patents
開口部の閉塞部材 Download PDFInfo
- Publication number
- WO2011099275A1 WO2011099275A1 PCT/JP2011/000714 JP2011000714W WO2011099275A1 WO 2011099275 A1 WO2011099275 A1 WO 2011099275A1 JP 2011000714 W JP2011000714 W JP 2011000714W WO 2011099275 A1 WO2011099275 A1 WO 2011099275A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- closing member
- composite material
- panel
- clamp ring
- Prior art date
Links
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 239000007769 metal material Substances 0.000 claims abstract description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 26
- 239000004917 carbon fiber Substances 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 7
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/34—Tanks constructed integrally with wings, e.g. for fuel or water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/32—Safety measures not otherwise provided for, e.g. preventing explosive conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/02—Lightning protectors; Static dischargers
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Definitions
- the present invention relates to a closing member for an opening provided in an aircraft body.
- the main wing of an aircraft has a hollow structure by attaching wing surface panels that form wing surfaces above and below a girder.
- the internal space of the main wing is a fuel tank.
- An opening is formed on the surface of the main wing in order to perform inspection and maintenance work inside the fuel tank. Under normal conditions, the opening is closed by the access door, and the access door is opened when performing inspection and maintenance work. (For example, refer to Patent Document 1).
- This access door includes a door body disposed on the inner space side of the main wing with respect to the opening, and a clamp ring disposed on the outer side of the main wing.
- Each of the door body and the clamp ring has a larger outer dimension than the opening.
- the door body and clamp ring are fastened with a large number of fastener members at the outer periphery. For this reason, it is necessary to form the receiving part of a fastener member in the door main body side. If the receiving part of many fastener members is provided in the outer peripheral part of a door main body, a door main body will become a very complicated shape. It is very difficult to form a door body having such a complicated shape from a composite material, and there is a problem that the cost increases.
- a composite material using carbon fibers allows a current to flow, though only slightly. Regardless of the material forming the access door, it is necessary to ensure electrical bonding between the access door and the wing panel in order to prevent the access door from being electrically isolated.
- the material that forms the door body and clamp ring is a metal that can be regarded as the same type of metal as the carbon fiber composite material when electrical bonding is to be secured at the contact surface.
- Titanium alloy, CRES and the like Titanium alloy, CRES and the like.
- both titanium alloys and CRES are difficult-to-work materials, and further, titanium alloys are expensive, and CRES has a problem of large specific gravity and an increase in weight.
- the present invention has been made based on such a technical problem, and an object of the present invention is to provide an opening closing member that is excellent in lightning resistance and can be manufactured at low cost.
- the present invention made for this purpose is a closing member for an opening formed in a panel constituting the outer surface of an aircraft fuselage.
- the closing member is disposed on one surface side of the panel and is formed from the opening.
- a closing member main body having a large outer diameter to close the opening, a ring-shaped clamp member disposed on the other surface side of the panel and having a larger outer diameter than the opening, and an outer periphery of the closing member main body
- a fastener that fastens the closing member body and the clamp member in a state where the panel is sandwiched between the portion and the outer peripheral portion of the clamp member.
- the closing member body has a first surface formed by a composite material in which a surface facing the outer side of the airframe is formed of a composite material including carbon fiber, and a surface facing the inner side of the airframe is formed of a metal material.
- the outer peripheral portion of the layer and the inner peripheral portion of the clamp member abut against each other, and the outer peripheral portion of the clamp member and the inner peripheral portion of the opening abut against each other, whereby the closing member is electrically connected to the panel via the clamp member. It is characterized by that.
- the surface facing the outside of the airframe in the closing member body is formed of a composite material containing carbon fiber, so that when lightning strikes the closing member body directly, current is passed through the carbon fiber to the clamp member, opening Can flow to the panel around the part.
- the portion that contacts the panel that forms the outer surface of the fuselage is formed of the same carbon fiber composite material as that of the panel, so that the metal is electrically associated with the carbon fiber composite material such as titanium or CRES. Compared with the case of using, electrical bonding can be ensured at low cost and light weight.
- a complicated shape such as a fastener receiving portion can be formed by casting or machining.
- the abutting surface between the outer peripheral portion of the first layer and the inner peripheral portion of the clamp member, and the abutting surface between the outer peripheral portion of the clamp member and the inner peripheral edge of the opening are tapered surfaces inclined with respect to the direction orthogonal to the surface of the body. It is preferable that By doing in this way, the cut surface of carbon fiber can be faced
- an insulating layer is provided between the first layer formed of the composite material and the second layer formed of the metal material. Thereby, even when a lightning strikes the first layer, current does not reach the second layer, and it is possible to prevent a spark from occurring on the second layer side.
- first and second layers are preferably joined together by pins and / or adhesives.
- the clamp ring is preferably formed of at least a side facing the outer side of the machine body from any one of a titanium alloy, a stainless alloy, and a composite material containing carbon fibers. This is because these materials are electrically related to the composite material used for the closing member main body and are not easily corroded by a potential difference.
- the panel can be formed of a composite material containing carbon fibers.
- the opening in which such a blocking member is provided may have any application and configuration.
- the opening is provided in the main wing constituting the fuselage and is an entrance to a fuel tank in the main wing, arc discharge Since generation
- the surface facing the outside of the airframe in the closing member body is formed of a composite material containing carbon fiber, so that when lightning strikes the closing member body directly, current is clamped through the carbon fiber. It can flow to the panel around the member and the opening.
- the blocking member can be excellent in lightning resistance.
- a complicated shape such as a receiving portion for fixing the closing member main body can be formed at low cost.
- FIG. 1 is a perspective view of an access door (blocking member) 20 provided on a main wing 10 constituting a fuselage of an aircraft to which an opening blocking member according to the present embodiment is applied, as viewed from the inside of the main wing 10.
- the access door 20 is provided on a wing surface panel (panel) 11 that forms the upper or lower surface of the main wing 10 so that maintenance personnel can enter and leave the fuel tank provided in the internal space of the main wing 10. .
- the blade surface panel 11 is formed with an opening 12 that communicates the inside and outside of the main wing 10.
- the opening 12 may have an appropriate shape such as an ellipse, an ellipse, or a circle.
- the access door 20 includes a door main body (closing member main body) 30 disposed on the inner space side of the main wing 10 with respect to the opening 12, a clamp ring (clamp member) 40 disposed on the outer side of the main wing 10, and these It is comprised from the fastener member (fastener) 50 which fastens the door main body 30 and the clamp ring 40. As shown in FIG.
- the door body 30 has a larger outer dimension than the opening 12.
- the door body 30 has an outer surface 31 a that forms a continuous surface with the wing outer surface 11 a of the wing surface panel 11, a plate portion 31 having an outer dimension smaller than the opening 12, and an outer peripheral portion of the plate portion 31. And a flange portion 32 that abuts the periphery of the opening 12 on the inner space side of the main wing 10.
- the flange portion 32 is a receiving surface 32a that abuts the periphery of the opening 12 on the inner space side of the main wing 10, and a receiving portion of the fastener member 50 that is formed at a portion facing the clamp ring 40 inside the abutting surface 32a.
- a plurality of receiving portions 33 are provided along the circumferential direction of the outer peripheral portion of the door main body 30 corresponding to the installation positions of the fastener members 50. Each receiving portion 33 protrudes toward the inner space side of the main wing 10, and a recessed portion 33 a that opens to the side facing the clamp ring 40 is formed.
- the axial part 52a of the fastener main body 52 which comprises the fastener member 50 is accommodated.
- the clamp ring 40 has a ring shape having an outer diameter larger than the inner diameter dimension of the opening 12 and an inner diameter smaller than the inner diameter dimension of the opening 12.
- the clamp ring 40 has a quadrangular cross section, and an outer surface 40a that is the outer side of the main wing 10 forms a surface that is continuous with the outer surface 11a of the wing surface panel 11 and faces the receiving portion 33 of the door body 30. 40b is formed in parallel with the outer surface 40a.
- a through hole 41 that penetrates the outer surface 40 a and the opposing surface 40 b is formed at a position corresponding to the receiving portion 33 of the door body 30.
- the shaft portion 52 a of the fastener member 50 is inserted into each through hole 41.
- a tapered seat surface 42 that accommodates the head portion 52 c of the fastener member 50 is formed on the side facing the outer surface of the main wing 10.
- the clamp ring 40 is trapezoidal in cross section, and tapered surfaces 40c and 40d are formed between the outer surface 40a and the opposing surface 40b. These tapered surfaces 40c and 40d are inclined so that the distance between them gradually increases from the facing surface 40b side toward the outer surface 40a side.
- a contact surface 34 is formed on the outer peripheral portion of the plate portion 31 so as to be in contact with the tapered surface 40 c on the inner peripheral side of the clamp ring 40.
- the contact surface 34 is formed on the tapered surface 40c of the clamp ring 40 so that the outer diameter of the plate portion 31 gradually increases from the outer surface 31a toward the inner surface 31b facing the inner side of the main wing 10. Inclined at a corresponding angle.
- a contact surface 14 is formed on the inner peripheral portion of the opening 12 of the wing surface panel 11 and hits the tapered surface 40d on the outer peripheral side of the clamp ring 40.
- the contact surface 14 is formed to be inclined at an angle corresponding to the tapered surface 40 d of the clamp ring 40.
- Such an access door 20 sandwiches the inner peripheral edge of the opening 12 between the abutting surface 32a of the flange 32 of the door body 30 and the clamp ring 40 when the opening 12 is closed. Then, the fastener body 52 of the fastener member 50 is inserted into the through hole 41 of the clamp ring 40 from the outside of the main wing 10, and the shaft body 52 a is screwed into the nut 51, whereby the door body 30 and the clamp ring 40 are fastened. . In this state, the contact surface 14 of the opening 12 and the tapered surface 40d of the clamp ring 40 abut, and the tapered surface 40c of the clamp ring 40 and the contact surface 34 of the plate portion 31 of the door body 30 abut.
- the door body 30 is configured such that the outer surface 31a of the plate portion 31 is formed of a composite material layer (first layer) 60 made of CFRP using carbon fiber,
- the surface 31b side and the flange portion 32 are formed of a metal material layer (second layer) 61 made of an aluminum alloy or the like.
- the composite material layer 60 and the metal material layer 61 have a laminated structure in which the composite material layer 60 and the metal material layer 61 are integrally joined by an adhesive 62 made of, for example, an insulating epoxy material.
- the composite material layer 60 and the metal material layer 61 may be integrally joined by a pin-shaped fastener (pin) 70, and may be combined with the adhesive 62.
- the fastener 70 may be fastened to the metal material layer 61 by insert or thread groove processing.
- an insulating film (not shown) is formed on the composite material layer 60 by baking glass fibers (insulating material) on the adhesive surface side of the adhesive 62.
- An insulating film (not shown) is formed on the metal material layer 61 by coating an insulating material on the adhesive surface side of the adhesive 62.
- An insulating layer can be formed by the insulating film of the composite material layer 60, the adhesive 62, and the insulating film of the metal material layer 61.
- the outer peripheral end portion of the composite material layer 60 is the contact surface 34 described above. Since the contact surface 34 is an inclined surface, the end portion of the carbon fiber that is provided in the direction along the surface of the main wing 10 and that has conductivity is included in the composite material layer 60 and is exposed to the contact surface 34. .
- the clamp ring 40 is electrically connected to the composite material layer 60 such as titanium alloy and CRES in addition to CFRP (composite material) using carbon fibers similar to the composite material layer 60 on the side facing at least the outer side of the airframe. It is made of a material of the same genus.
- CFRP composite material
- the tapered surfaces 40c and 40d are provided in the direction along the surface of the main wing 10 in the same manner as the contact surface 34, and the ends of the carbon fibers having conductivity. Is exposed.
- the wing surface panel 11 is formed, and the end of the carbon fiber having conductivity is provided in the direction along the surface of the main wing 10.
- the door main body 30, the clamp ring 40, and the opening 12 of the wing surface panel 11 are in contact with the contact surface 34 of the door main body 30 and the tapered surface 40 c of the clamp ring 40, and the tapered surface of the clamp ring 40.
- 40d and the contact surface 14 of the opening part 12 are electrically connected by surface bonding between conductive materials.
- the door body 30 has an outer surface 31a of the plate portion 31 formed of the composite material layer 60, an inner surface 31b side and a flange portion 32 formed of the metal material layer 61, and the composite material layer 60 and the metal material layer. Since 61 is insulated by the insulating layer, the current flowing through the composite material layer 60 does not flow through the metal material layer 61, and arc discharge can be prevented from occurring inside the fuel tank during a lightning strike.
- the contact surface 34 of the door body 30 and the tapered surface 40c of the clamp ring 40, and the tapered surface 40d of the clamp ring 40 and the contact surface 14 of the opening 12 are in contact with each other.
- a large amount of the cut surface of the carbon fiber is exposed on the tapered surface 40 d and the contact surface 14 of the opening 12.
- the contact area between the carbon fibers of the tapered surface 40d of the clamp ring 40 and the contact surface 14 of the opening 12 can be increased, and these can be reliably contacted to ensure electrical conduction.
- the contact surface 34 of the door body 30, the tapered surfaces 40c and 40d of the clamp ring 40, and the contact surface 14 of the opening 12 are, for example, the attaching / detaching direction of the door body 30 and the clamp ring 40, that is, the door body 30 and the wing surface panel. 11, the ends of the carbon fibers exposed on these surfaces may be rubbed and loosened while the door body 30 and the clamp ring 40 are repeatedly attached and detached. On the other hand, by making these surfaces into tapered surfaces, it is possible to prevent the carbon fibers from being loosened.
- the molding is also easier than in the case where it is formed of a composite material. Can be formed.
- the door main body 30 and the clamp ring 40 have been described.
- the fastening structure, the shape of the door main body 30 and the clamp ring 40, and the like are not intended to be limited to those described above. Any other configuration can be used as appropriate. In addition to this, as long as it does not depart from the gist of the present invention, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate.
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Clamps And Clips (AREA)
- Special Wing (AREA)
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Abstract
Description
そして、燃料タンクの内部の点検・保守作業等を行うため、主翼の表面に、開口部が形成されている。通常時においては、この開口部はアクセスドアにより閉塞され、点検・保守作業等を行うときには、アクセスドアを開放する。(例えば、特許文献1参照。)。
ドア本体、クランプリングは、それぞれ開口部よりも大きな外形寸法を有している。ドア本体の外周部と、クランプリングの外周部とで、開口部の周縁部を挟み込んだ状態で、ドア本体とクランプリングとがファスナ部材等により締結されることで、開口部がドア本体により閉塞される。
航空機の機体を炭素繊維複合材料で形成する場合、接触面で電気的ボンディングを確保しようとすると、ドア本体やクランプリングを形成する材料は、炭素繊維複合材料と同種金属と見做せる金属である、チタニウム合金、CRES等に限定されてしまう。しかし、チタニウム合金、CRES(ステンレス合金)ともに、難加工材であり、さらに、チタニウム合金は高価であり、CRESは比重が大きく重量増に繋がるという問題がある。
このようにして閉塞部材本体において機体の外方に臨む面を、炭素繊維を含んだ複合材料により形成することで、閉塞部材本体に雷が直撃した場合に、炭素繊維を通して電流をクランプ部材、開口部周囲のパネルへと流すことができる。
また、閉塞部材本体において、機体の外表面を構成するパネルと接する部分を、パネルと同じ炭素繊維複合材料により形成することで、チタンやCRESのような炭素繊維複合材料と電気的に同属の金属を用いた場合と比べ、安価かつ軽量に、電気的ボンディングを確保することが可能となる。
また、機体の内方に臨む面を、金属材料により形成することで、ファスナの受け部等、複雑な形状も、鋳造や機械加工により形成することができる。
このような第一の層と第二の層は、ピンおよび/または接着剤により一体に接合するのが好ましい。
また、パネルは、炭素繊維を含んだ複合材料により形成することができる。
また、閉塞部材本体において機体の内方に臨む面を金属材料により形成することで、閉塞部材本体を固定するための受け部等、複雑な形状等も低コストで形成することができる。
図1は、本実施の形態における開口部の閉塞部材を適用した航空機の機体を構成する主翼10に設けられたアクセスドア(閉塞部材)20を、主翼10の内側から見た斜視図である。
アクセスドア20は、主翼10の内部空間に設けられた燃料タンク内に整備担当員が出入りするため、主翼10の上側または下側の表面を形成する翼面パネル(パネル)11に設けられている。
受け部33は、ドア本体30の外周部の周方向に沿って、ファスナ部材50の設置位置に対応して複数が設けられている。
各受け部33は、主翼10の内部空間側に向けて突出しており、クランプリング40に対向する側に開口した凹部33aが形成されている。そして、凹部33a内に、ファスナ部材50を構成するナット51を保持するとともに、ファスナ部材50を構成するファスナ本体52の軸部52aを収容する。
クランプリング40には、外表面40a、対向面40bを貫通する貫通孔41が、ドア本体30の受け部33に対応した位置に形成されている。各貫通孔41には、ファスナ部材50の軸部52aが挿通される。各貫通孔41において、主翼10の外表面に対向する側に、ファスナ部材50の頭部52cを収容するテーパ状の座面42が形成されている。
また、翼面パネル11の開口部12の内周部には、クランプリング40の外周側のテーパ面40dに当たる当たり面14が形成されている。本実施形態において、当たり面14は、クランプリング40のテーパ面40dに対応した角度で傾斜して形成されている。
この状態で、開口部12の当たり面14とクランプリング40のテーパ面40dとが突き当たり、クランプリング40のテーパ面40cとドア本体30のプレート部31の当たり面34とが突き当たる。
金属材料層61には、接着剤62による接着面側に絶縁材料が塗装されることによる絶縁膜(図示なし)が形成されている。
これら複合材料層60の絶縁膜、接着剤62、金属材料層61の絶縁膜により、絶縁層を形成することができる。
また、主翼10の開口部12の当たり面14においても、翼面パネル11を形成し、主翼10の表面に沿った方向に設けられて導電性を有する炭素繊維の端部が露出している。
また、ドア本体30は、プレート部31の外表面31aが、複合材料層60により形成され、内表面31b側およびフランジ部32が金属材料層61により形成され、これら複合材料層60と金属材料層61は、絶縁層によって絶縁されているため、複合材料層60を流れる電流が金属材料層61に流れることはなく、落雷時に、燃料タンクの内側でアーク放電が生じるのを抑えることができる。
また、ドア本体30の当たり面34、クランプリング40のテーパ面40c、40d、開口部12の当たり面14は、例えば、ドア本体30、クランプリング40の着脱方向、すなわちドア本体30や翼面パネル11の表面に直交する面内である場合、これらの面に露出した炭素繊維の端部が、ドア本体30やクランプリング40の着脱を繰り返すうちに、擦れてほぐれてしまう可能性がある。これに対し、これらの面をテーパ面とすることで、炭素繊維がほぐれるのを防止することができる。
これ以外にも、本発明の主旨を逸脱しない限り、上記実施の形態で挙げた構成を取捨選択したり、他の構成に適宜変更することが可能である。
Claims (7)
- 航空機の機体の外表面を構成するパネルに形成された開口部の閉塞部材であって、
前記閉塞部材は、
前記パネルの一面側に配置され、前記開口部よりも大きな外径寸法を有して前記開口部を塞ぐ閉塞部材本体と、
前記パネルの他面側に配置され、前記開口部よりも大きな外径寸法を有したリング状のクランプ部材と、
前記閉塞部材本体の外周部と前記クランプ部材の外周部とでパネルを挟み込んだ状態で、前記閉塞部材本体と前記クランプ部材とを締結するファスナと、を備え、
前記閉塞部材本体は、前記機体の外方に臨む面が、炭素繊維を含んだ複合材料により形成され、前記機体の内方に臨む面が、金属材料により形成され、
前記複合材料により形成された第一の層の外周部と前記クランプ部材の内周部とが突き当たり、前記クランプ部材の外周部と前記開口部の内周縁部とが突き当たることで、前記閉塞部材が前記クランプ部材を介して前記パネルに電気的に接続されていることを特徴とする開口部の閉塞部材。 - 前記第一の層の外周部と前記クランプ部材の内周部との突き当たり面、前記クランプ部材の外周部と前記開口部の内周縁部との突き当たり面が、前記機体表面に直交する方向に対して傾斜したテーパ面とされていることを特徴とする請求項1に記載の開口部の閉塞部材。
- 前記閉塞部材本体は、前記複合材料により形成された第一の層と、前記金属材料により形成された第二の層との間に、絶縁層が設けられていることを特徴とする請求項1に記載の開口部の閉塞部材。
- 前記第一の層と前記第二の層とが、ピンおよび/または接着剤により一体に接合されていることを特徴とする請求項3に記載の開口部の閉塞部材。
- 前記クランプ部材が、少なくとも前記機体の外方側に臨む側がチタン合金、ステンレス合金、炭素繊維を含んだ複合材料のいずれかにより形成されていることを特徴とする請求項1に記載の開口部の閉塞部材。
- 前記パネルが、炭素繊維を含んだ複合材料により形成されていることを特徴とする請求項1に記載の開口部の閉塞部材。
- 前記開口部が、前記機体を構成する主翼に設けられ、前記主翼内に収容された燃料タンクへの出入り口であることを特徴とする請求項1に記載の開口部の閉塞部材。
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US13/577,733 US8840068B2 (en) | 2010-02-10 | 2011-02-09 | Closing member for opening |
EP11742025.7A EP2535265B1 (en) | 2010-02-10 | 2011-02-09 | Closure member for opening |
CA2788530A CA2788530C (en) | 2010-02-10 | 2011-02-09 | Closing member for opening |
BR112012019876-9A BR112012019876B1 (pt) | 2010-02-10 | 2011-02-09 | membro de fechamento para uma abertura |
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JP2010027671A JP5478289B2 (ja) | 2010-02-10 | 2010-02-10 | 開口部の閉塞部材、航空機 |
JP2010-027671 | 2010-02-10 |
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US (1) | US8840068B2 (ja) |
EP (1) | EP2535265B1 (ja) |
JP (1) | JP5478289B2 (ja) |
BR (1) | BR112012019876B1 (ja) |
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Cited By (1)
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US11040512B2 (en) | 2017-11-08 | 2021-06-22 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
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US9079656B2 (en) | 2013-02-14 | 2015-07-14 | The Boeing Company | Mistake resistant design for wing fuel tank access door alignment features |
US9718533B2 (en) * | 2014-07-01 | 2017-08-01 | Textron Innovations, Inc. | Fuel tank access door systems and methods |
JP6139582B2 (ja) * | 2015-02-23 | 2017-05-31 | 株式会社Subaru | 航空機用構造体、航空機用構造体の製造方法及び航空機用構造体の設計情報の作成方法 |
WO2018033706A1 (en) * | 2016-08-17 | 2018-02-22 | Rosemont Pharmaceuticals Limited | Stable atorvastatin suspension composition |
GB2600409B (en) * | 2020-10-27 | 2022-11-02 | Airbus Operations Ltd | Fuel tank assemblies |
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- 2010-02-10 JP JP2010027671A patent/JP5478289B2/ja not_active Expired - Fee Related
-
2011
- 2011-02-09 US US13/577,733 patent/US8840068B2/en active Active
- 2011-02-09 WO PCT/JP2011/000714 patent/WO2011099275A1/ja active Application Filing
- 2011-02-09 EP EP11742025.7A patent/EP2535265B1/en not_active Not-in-force
- 2011-02-09 BR BR112012019876-9A patent/BR112012019876B1/pt not_active IP Right Cessation
- 2011-02-09 CA CA2788530A patent/CA2788530C/en active Active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11040512B2 (en) | 2017-11-08 | 2021-06-22 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
US12083766B2 (en) | 2017-11-08 | 2024-09-10 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
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Publication number | Publication date |
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EP2535265B1 (en) | 2016-04-20 |
BR112012019876A2 (pt) | 2016-04-26 |
US20130015294A1 (en) | 2013-01-17 |
BR112012019876B1 (pt) | 2020-12-08 |
JP2011162081A (ja) | 2011-08-25 |
US8840068B2 (en) | 2014-09-23 |
JP5478289B2 (ja) | 2014-04-23 |
CA2788530C (en) | 2014-08-05 |
EP2535265A1 (en) | 2012-12-19 |
EP2535265A4 (en) | 2014-07-16 |
CA2788530A1 (en) | 2011-08-18 |
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