IL58425A - Yoke for coupling helicopter blades to a mast - Google Patents
Yoke for coupling helicopter blades to a mastInfo
- Publication number
- IL58425A IL58425A IL58425A IL5842579A IL58425A IL 58425 A IL58425 A IL 58425A IL 58425 A IL58425 A IL 58425A IL 5842579 A IL5842579 A IL 5842579A IL 58425 A IL58425 A IL 58425A
- Authority
- IL
- Israel
- Prior art keywords
- mast
- yoke
- helicopter blades
- coupling
- coupling helicopter
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/33—Rotors having flexing arms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Laminated Bodies (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/955,332 US4293276A (en) | 1978-10-27 | 1978-10-27 | Laminated composite rotor yoke |
Publications (1)
Publication Number | Publication Date |
---|---|
IL58425A true IL58425A (en) | 1982-01-31 |
Family
ID=25496683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL58425A IL58425A (en) | 1978-10-27 | 1979-10-10 | Yoke for coupling helicopter blades to a mast |
Country Status (12)
Country | Link |
---|---|
US (1) | US4293276A (de) |
JP (1) | JPS5583698A (de) |
AU (1) | AU528951B2 (de) |
BR (1) | BR7906961A (de) |
CA (1) | CA1102774A (de) |
DE (1) | DE2942519A1 (de) |
ES (1) | ES485421A1 (de) |
FR (1) | FR2439709A1 (de) |
GB (1) | GB2033861B (de) |
IL (1) | IL58425A (de) |
IT (1) | IT1162460B (de) |
MX (1) | MX6195E (de) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1143358B (it) * | 1981-02-05 | 1986-10-22 | Agusta Aeronaut Costr | Mozzo composito di un rotore di elicottero |
US4460531A (en) * | 1982-05-10 | 1984-07-17 | The Boeing Company | Composite fiber reinforced propeller |
US4427340A (en) | 1982-06-24 | 1984-01-24 | Bell Helicopter Textron Inc. | Soft inplane bearingless helicopter rotor |
US4522563A (en) * | 1982-07-06 | 1985-06-11 | Bell Helicopter Textron, Inc. | Elastomeric system for mounting a helicopter rotor |
FR2529860B1 (fr) * | 1982-07-08 | 1987-01-02 | Aerospatiale | Plateau de moyeu, procede de fabrication et moyeu de rotor de giravion equipe de tels plateaux |
US4776076A (en) * | 1982-09-30 | 1988-10-11 | Boeing Company | Method of fabricating a rotor hub of composite material |
US4543040A (en) * | 1982-09-30 | 1985-09-24 | The Boeing Company | Helicopter rotor system |
US4868962A (en) * | 1982-09-30 | 1989-09-26 | The Boeing Company | Method of fabricating a helicopter rotor system |
US4568244A (en) * | 1983-03-22 | 1986-02-04 | United Technologies Corporation | Fiber reinforced/epoxy matrix composite helicopter rotor main hub plate |
US4585393A (en) * | 1983-03-22 | 1986-04-29 | United Technologies Corporation | Fiber reinforced/epoxy matrix composite helicopter rotor yoke |
DE3338654C1 (de) * | 1983-10-25 | 1985-05-30 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Verbindung aus einem Bolzen und einer Schlaufe |
US4860610A (en) * | 1984-12-21 | 1989-08-29 | E. I. Du Pont De Nemours And Company | Wound rotor element and centrifuge fabricated therefrom |
US4675001A (en) * | 1985-07-23 | 1987-06-23 | E. I. Du Pont De Nemours And Company | Centrifuge rotor |
US4701157A (en) * | 1986-08-19 | 1987-10-20 | E. I. Du Pont De Nemours And Company | Laminated arm composite centrifuge rotor |
JP2583259B2 (ja) * | 1988-01-08 | 1997-02-19 | 富士重工業株式会社 | ヘリコプタ用フレックスビーム |
US5059094A (en) * | 1989-10-13 | 1991-10-22 | Bell Helicopter Textron, Inc. | Rotor redundant force retention system for vtol and vstol aircraft |
US6375426B1 (en) * | 1999-09-28 | 2002-04-23 | Bell Helicopter Textron Inc. | Protective edge members for composite flexures |
US6296444B1 (en) * | 1999-10-01 | 2001-10-02 | Bell Helicopter Textron Inc. | Prop rotor hub |
EA200801835A1 (ru) * | 2006-02-24 | 2009-02-27 | Белл Хеликоптер Текстрон, Инк. | Обойма винта вертолёта и способ её изготовления |
US8419375B2 (en) * | 2008-01-31 | 2013-04-16 | Textron Innovations Inc. | Method of making a rotor yoke and rotor yoke thereof |
US9199731B2 (en) | 2009-10-13 | 2015-12-01 | Textron Innovations Inc. | Rotor yoke and method of making the same |
US9073625B1 (en) * | 2010-02-11 | 2015-07-07 | Textron Innovations Inc. | Helicopter rotor yoke |
DE102010039705B4 (de) * | 2010-08-24 | 2020-02-27 | Airbus Operations Gmbh | Strukturelement für ein Luft- und Raumfahrzeug und Verfahren zum Herstellen eines derartigen Strukturelementes |
US9308992B2 (en) | 2012-02-28 | 2016-04-12 | Sikorsky Aircraft Corporation | Helicopter blade retention composite yoke |
US10336445B2 (en) * | 2013-03-12 | 2019-07-02 | Bell Helicopter Textron Inc. | High flapping yoke hub assembly using a cylindrical elastomeric attachment to avoid holes |
US9714086B2 (en) * | 2013-03-13 | 2017-07-25 | Bell Helicopter Textron Inc. | Fiber orientation to allow for automated ply placement with composite rotor yokes |
US9505490B2 (en) * | 2013-03-13 | 2016-11-29 | Bell Helicopter Textron Inc. | Composite rotor system using two race track style cantilevered yokes |
US9505489B2 (en) | 2013-03-13 | 2016-11-29 | Bell Helicopter Textron Inc. | Flexing clevis arrangement bolted joint attachment for flexible rotor hub with high offset and high flapping |
US9074638B2 (en) | 2013-03-14 | 2015-07-07 | Bell Helicopter Textron Inc. | Multilink constant velocity joint |
EP2818407B1 (de) * | 2013-06-24 | 2016-12-21 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Rotorsystem eines Hubschraubers |
US9701403B2 (en) * | 2014-02-18 | 2017-07-11 | Bell Helicopter Textron Inc. | Broad goods composite yoke for rotor system |
US10792896B2 (en) * | 2014-07-14 | 2020-10-06 | Bell Helicopter Textron Inc. | Method for limiting interlaminar fatigue in composite laminate and a component incorporating the same |
US10654567B2 (en) | 2015-03-26 | 2020-05-19 | Bell Helicopter Textron Inc. | Composite yoke fitting for bearing attachment to rotorcraft blade |
US10513324B2 (en) | 2016-02-08 | 2019-12-24 | Bell Helicopter Textron Inc. | Composite rib assembly |
US11142297B2 (en) | 2016-02-08 | 2021-10-12 | Bell Helicopter Textron Inc. | Heating tool |
US10639854B2 (en) | 2016-02-08 | 2020-05-05 | Bell Helicopter Textron Inc. | Composite wing structure and methods of manufacture |
CA3004054C (en) | 2017-05-05 | 2024-02-13 | Laflamme Aero Inc. | Helicopter rotor hub assembly and helicopter including same |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2830669A (en) * | 1955-06-03 | 1958-04-15 | Herman R Klockner | Blade-pitch-regulating means for the rotors of sustaining-rotor-equipped aircraft |
US3228481A (en) * | 1964-04-24 | 1966-01-11 | Bendix Corp | Tie bar bushing |
US3384185A (en) * | 1967-06-02 | 1968-05-21 | Aerojet General Co | Rotor hubs |
FR2041747A1 (de) * | 1969-05-20 | 1971-02-05 | Sud Aviation | |
US3652185A (en) * | 1970-03-13 | 1972-03-28 | Textron Inc | Elastomeric rotor blade mount |
US3804552A (en) * | 1972-07-05 | 1974-04-16 | Textron Inc | Four blade main rotor control power coupling |
US3807896A (en) * | 1972-10-10 | 1974-04-30 | Textron Inc | Concentric tube spring rotor mount |
GB1432117A (en) * | 1973-05-10 | 1976-04-14 | Aerospatiale | Rotor for rotating wing type aircraft |
FR2228663A1 (en) * | 1973-05-10 | 1974-12-06 | Aerospatiale | Rotor for rotating wing aircraft - has yoke connecting rotor arm and star shaped rotor has low weight |
US3880551A (en) * | 1973-11-15 | 1975-04-29 | Boeing Co | Rotary head assembly for rotary wing aircraft |
US3874815A (en) * | 1973-11-15 | 1975-04-01 | Boeing Co | Rotary head assembly for rotary wing aircraft |
GB1526815A (en) * | 1974-11-26 | 1978-10-04 | Messerschmitt Boelkow Blohm | Stress-reducing connecting assembly |
US4008980A (en) * | 1975-06-26 | 1977-02-22 | United Technologies Corporation | Composite helicopter spar and means to alleviate stress concentration |
US4047839A (en) * | 1976-05-28 | 1977-09-13 | United Technologies Corporation | Torque reacting means for the hubs of cross beam rotors |
DE2638148C3 (de) * | 1976-08-25 | 1980-09-18 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Rotor für ein Drehflügelflugzeug |
DE2656296C3 (de) * | 1976-12-11 | 1980-10-16 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Rotor für ein Drehflügelflugzeug |
US4227857A (en) * | 1977-08-19 | 1980-10-14 | Textron, Inc. | Composite flexural yoke for helicopters |
DE2745468A1 (de) * | 1977-10-08 | 1979-04-19 | Messerschmitt Boelkow Blohm | Rotor eines drehfluegelflugzeugs |
-
1978
- 1978-10-27 US US05/955,332 patent/US4293276A/en not_active Expired - Lifetime
-
1979
- 1979-10-10 IL IL58425A patent/IL58425A/xx unknown
- 1979-10-16 AU AU51835/79A patent/AU528951B2/en not_active Ceased
- 1979-10-20 DE DE19792942519 patent/DE2942519A1/de active Granted
- 1979-10-23 IT IT50645/79A patent/IT1162460B/it active
- 1979-10-24 CA CA338,277A patent/CA1102774A/en not_active Expired
- 1979-10-25 GB GB7937073A patent/GB2033861B/en not_active Expired
- 1979-10-26 ES ES485421A patent/ES485421A1/es not_active Expired
- 1979-10-26 BR BR7906961A patent/BR7906961A/pt not_active IP Right Cessation
- 1979-10-26 MX MX798458U patent/MX6195E/es unknown
- 1979-10-27 JP JP13829079A patent/JPS5583698A/ja active Granted
- 1979-10-29 FR FR7926714A patent/FR2439709A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2439709B1 (de) | 1983-12-02 |
AU528951B2 (en) | 1983-05-19 |
JPS63280B2 (de) | 1988-01-06 |
US4293276A (en) | 1981-10-06 |
CA1102774A (en) | 1981-06-09 |
JPS5583698A (en) | 1980-06-24 |
DE2942519A1 (de) | 1980-05-08 |
GB2033861A (en) | 1980-05-29 |
AU5183579A (en) | 1980-05-01 |
IT1162460B (it) | 1987-04-01 |
MX6195E (es) | 1984-12-13 |
IT7950645A0 (it) | 1979-10-23 |
ES485421A1 (es) | 1980-05-16 |
FR2439709A1 (fr) | 1980-05-23 |
BR7906961A (pt) | 1980-06-24 |
DE2942519C2 (de) | 1988-10-13 |
GB2033861B (en) | 1982-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
KB | Patent renewed |