JP6872942B2 - 複合構造体のためのコンフォーマル隙間嵌め留め具、留め具システム、及び、方法 - Google Patents
複合構造体のためのコンフォーマル隙間嵌め留め具、留め具システム、及び、方法 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
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- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/12—Construction or attachment of skin panels
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/93—Fastener comprising feature for establishing a good electrical connection, e.g. electrostatic discharge or insulation feature
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Wood Science & Technology (AREA)
- Connection Of Plates (AREA)
Description
前記第1端部に設けられたヘッド部と、
前記第2端部に設けられたネジ部と、
前記ヘッド部の開口から、前記ヘッド部及び前記シャフト本体部を通って前記長状シャフトの中心長軸に沿って延び、前記ネジ部に隣接する位置で終結する少なくとも1つの内部供給路と、
前記シャフト本体部の外面及び前記ヘッド部の外面に周方向に互いに離間して形成された複数の溝であって、其々が、第1端部を有し、前記ネジ部に隣接する第1位置から、前記シャフト本体部の前記外面に沿って延びるとともに、前記ヘッド部の前記外面に沿って径方向外方に延びる溝と、
前記シャフト本体部を横切って形成された1つ又は複数の横供給路であって、其々が、前記内部供給路を、前記シャフト本体部の前記外面の少なくとも2つの対向する溝に接続している横供給路と、を含む留め具。
前記複合構造体に形成された1つ又は複数の対応する留め具穴に取り付けるように構成された1つ又は複数の留め具を含み、各留め具は、
ヘッド部を有する第1端部、ネジ部を有する第2端部、及び、前記第1端部と前記第2端部との間に配置されたシャフト本体部、を有する長状シャフトと、
前記ヘッド部の開口から、前記ヘッド部及び前記シャフト本体部を通って前記長状シャフトの中心長軸に沿って延び、前記ネジ部に隣接する位置で終結する少なくとも1つの内部中央供給路と、
前記シャフト本体部の外面及び前記ヘッド部の外面に周方向に互いに離間して形成された複数の溝であって、其々が、前記ネジ部に隣接する第1位置から、前記シャフト本体部の前記外面に沿って延びるとともに、前記ヘッド部の前記外面に沿って径方向外方に延びる溝と、
前記シャフト本体部を横切って形成された1つ又は複数の横供給路であって、其々が、前記内部中央供給路を、前記シャフト本体部の前記外面の少なくとも2つの対向する溝に接続している横供給路と、を含み、前記システムは、さらに、
前記1つ又は複数の対応する留め具穴に取り付けられた前記1つ又は複数の留め具の其々に連結されるように構成された注入具アセンブリと、
前記複合構造体に取り付けられた各留め具内に、前記注入具アセンブリを介して注入されるとともに、各留め具の前記少なくとも1つの内部中央供給路、前記1つ又は複数の横供給路、及び、前記複数の溝を介して、前記留め具の外面と、前記複合構造体の対応する前記留め具穴の内面との間の1つ又は複数の領域に送り且つ溜める伝導性流体と、をさらに含み、
前記伝導性流体が、前記複合構造体の炭素繊維と、前記複合構造体の前記1つ又は複数の対応する留め具穴に取り付けられた前記1つ又は複数の留め具との間に、電気的接触をもたらすことにより、前記留め具システムが前記複合構造体との電気的接触を実現する、留め具システム。
前記複合構造体に形成された1つ又は複数の対応する留め具穴に、1つ又は複数の留め具を取り付け、各留め具は、
ヘッド部を有する第1端部、ネジ部を有する第2端部、及び、これらの間に配置されたシャフト本体部、を有する長状シャフトと、
前記ヘッド部の開口から、前記ヘッド部及び前記シャフト本体部を通って前記長状シャフトの中心長軸に沿って延び、前記ネジ部に隣接する位置で終結する少なくとも1つの内部供給路と、
前記シャフト本体部の外面及び前記ヘッド部の外面に周方向に互いに離間して形成された複数の溝であって、其々が、前記ネジ部に隣接する第1位置から、前記シャフト本体部の前記外面に沿って延びるとともに、前記ヘッド部の前記外面に沿って径方向外方に延びる溝と、
前記シャフト本体部を横切って形成された1つ又は複数の横供給路であって、其々が、前記内部供給路を、前記シャフト本体部の前記外面の少なくとも2つの対向する溝に接続している横供給路と、を含んでおり、
前記1つ又は複数の対応する留め具穴内の所定位置で前記1つ又は複数の留め具を回転させ、
各留め具の前記ヘッド部の前記開口へ、前記少なくとも1つの内部供給路、及び、前記1つ又は複数の横供給路のうちの少なくとも1つを通して、加圧下で伝導性流体を注入し、
各留め具の外面と、前記複合構造体の対応する各留め具穴の内面との間の1つ又は複数の領域に伝導性流体を溜め、
前記1つ又は複数の留め具が複合構造体に取り付けられた状態で前記複合構造体を硬化させ、
前記複合構造体の炭素繊維と、対応する各留め具穴に取り付けられた各留め具との間に電気的接触をもたらすことによって、前記航空機への落雷によって生じる電流エネルギーの電気伝導性及び消散性を得る、方法。
Claims (13)
- 第1端部、第2端部、及び、前記第1端部と前記第2端部との間に設けられたシャフト本体部、を有する長状シャフトと、
前記第1端部に設けられたヘッド部と、
前記第2端部に設けられたネジ部と、
前記ヘッド部の開口から、前記ヘッド部及び前記シャフト本体部を通って前記長状シャフトの中心長軸に沿って延び、前記ネジ部に隣接する位置で終結する少なくとも1つの内部供給路と、
前記シャフト本体部の外面及び前記ヘッド部の外面に周方向に互いに離間して形成された複数の溝であって、其々が、第1端部を有し、前記ネジ部に隣接する第1位置から、前記シャフト本体部の前記外面に沿って延びるとともに、前記ヘッド部の前記外面に沿って径方向外方に延びる溝と、
前記シャフト本体部を横切って形成された1つ又は複数の横供給路であって、其々が、前記内部供給路を、前記シャフト本体部の前記外面の少なくとも2つの対向する溝に接続している横供給路と、を含む留め具。 - 前記シャフト本体部は、実質的に真っ直ぐな輪郭を有する、請求項1に記載の留め具。
- 前記シャフト本体部は、テーパー状の輪郭を有する、請求項1に記載の留め具。
- 前記少なくとも1つの内部供給路、前記1つ又は複数の横供給路、及び、前記複数の溝は、前記留め具が、対応する留め具穴に取り付けられた際に、前記留め具に注入された伝導性流体を、前記留め具の外面と、前記対応する留め具穴の内面との間の1つ又は複数の領域に、送り且つ溜めるように構成されている、請求項1〜3のいずれかに記載の留め具。
- 前記長状シャフトは、前記シャフト本体部を横切って形成された1つ又は複数の横供給路の少なくとも二つの組を有しており、前記少なくとも二組は、互いに離間している、請求項1〜4のいずれかに記載の留め具。
- 各溝は、前記ヘッド部の前記外面に沿って径方向外方に延びるとともに、第2端部で終結しており、前記第2端部は、前記ヘッド部の外縁に隣接する第2位置及び前記ヘッド部の前記外縁に設けられた外縁開口のうちの1つを含む、請求項1〜5のいずれかに記載の留め具。
- 航空機の複合構造体に、前記航空機への落雷によって生じる電流エネルギーのより良好な電気伝導性及び消散性を与える方法であって、
前記複合構造体に形成された1つ又は複数の対応する留め具穴に、1つ又は複数の留め具を取り付け、各留め具は、
ヘッド部を有する第1端部、ネジ部を有する第2端部、及び、これらの間に配置されたシャフト本体部、を有する長状シャフトと、
前記ヘッド部の開口から、前記ヘッド部及び前記シャフト本体部を通って前記長状シャフトの中心長軸に沿って延び、前記ネジ部に隣接する位置で終結する少なくとも1つの内部供給路と、
前記シャフト本体部の外面及び前記ヘッド部の外面に周方向に互いに離間して形成された複数の溝であって、其々が、前記ネジ部に隣接する第1位置から、前記シャフト本体部の前記外面に沿って延びるとともに、前記ヘッド部の前記外面に沿って径方向外方に延びる溝と、
前記シャフト本体部を横切って形成された1つ又は複数の横供給路であって、其々が、前記内部供給路を、前記シャフト本体部の前記外面の少なくとも2つの対向する溝に接続している横供給路と、を含んでおり、
前記1つ又は複数の対応する留め具穴内の所定位置で前記1つ又は複数の留め具を回転させ、
各留め具の前記ヘッド部の前記開口へ、前記少なくとも1つの内部供給路、及び、前記1つ又は複数の横供給路のうちの少なくとも1つを通して、加圧下で伝導性流体を注入し、
各留め具の外面と、前記複合構造体の対応する各留め具穴の内面との間の1つ又は複数の領域に伝導性流体を溜め、
前記1つ又は複数の留め具が複合構造体に取り付けられた状態で前記複合構造体を硬化させ、
前記複合構造体の炭素繊維と、対応する各留め具穴に取り付けられた各留め具との間に電気的接触をもたらすことによって、前記航空機への落雷によって生じる電流エネルギーの電気伝導性及び消散性を得る、方法。 - 前記1つ又は複数の留め具を取り付けるに際し、シャフト本体部が実質的に真っ直ぐな輪郭を有する1つ又は複数の留め具を取り付ける、請求項7に記載の方法。
- 前記1つ又は複数の留め具を取り付けるに際し、シャフト本体部がテーパー状の輪郭を有する1つ又は複数の留め具を取り付ける、請求項7に記載の方法。
- 前記1つ又は複数の留め具を取り付けるに際し、前記ヘッド部の外縁にある外縁開口で終結する複数の溝を其々が有する1つ又は複数の留め具を取り付け、前記伝導性流体を加圧下で注入するに際し、各外縁開口から前記複数の溝沿って前記伝導性流体を注入する、請求項7〜9のいずれかに記載の方法。
- 前記伝導性流体を加圧下で注入するに際し、前記伝導性流体を前記留め具内に注入するための注入具アセンブリを使用し、前記注入具アセンブリは、前記伝導性流体を収容する容器を含み、前記容器は、前記留め具に連結されるように構成されており、前記注入具アセンブリは、前記容器に連結された、前記留め具の前記ヘッド部の前記開口に連結される構成の圧力インジェクタをさらに含み、前記圧力インジェクタは、前記伝導性流体を加圧下で前記留め具内に注入するように構成されている、請求項7〜10のいずれかに記載の方法。
- 前記伝導性流体を加圧下で注入するに際し、電気伝導性を有する導電性材料が混入した樹脂材料を含む前記伝導性流体を注入する、請求項7〜11のいずれかに記載の方法。
- 前記伝導性流体を加圧下で注入するに際し、前記伝導性流体の熱膨張係数が、前記伝導性流体に接触する前記複合構造体の熱膨張係数に実質的に一致するように前記伝導性流体を選択する、請求項7〜12のいずれかに記載の方法。
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