IT958039B - Perfezionamento nei meccanismi di piegatura azionati a motore in particolare per pale di aeromobili ad ala rotante - Google Patents
Perfezionamento nei meccanismi di piegatura azionati a motore in particolare per pale di aeromobili ad ala rotanteInfo
- Publication number
- IT958039B IT958039B IT50457/72A IT5045772A IT958039B IT 958039 B IT958039 B IT 958039B IT 50457/72 A IT50457/72 A IT 50457/72A IT 5045772 A IT5045772 A IT 5045772A IT 958039 B IT958039 B IT 958039B
- Authority
- IT
- Italy
- Prior art keywords
- blades
- improvement
- motor
- wing aircraft
- rotating wing
- 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
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C27/50—Blades foldable to facilitate stowage of aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14882471A | 1971-06-01 | 1971-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT958039B true IT958039B (it) | 1973-10-20 |
Family
ID=22527551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT50457/72A IT958039B (it) | 1971-06-01 | 1972-05-24 | Perfezionamento nei meccanismi di piegatura azionati a motore in particolare per pale di aeromobili ad ala rotante |
Country Status (8)
Country | Link |
---|---|
US (1) | US3749515A (fr) |
JP (2) | JPS5759118B1 (fr) |
AU (1) | AU458368B2 (fr) |
CA (1) | CA963872A (fr) |
DE (1) | DE2224170C2 (fr) |
FR (1) | FR2140108B1 (fr) |
GB (1) | GB1375658A (fr) |
IT (1) | IT958039B (fr) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4252504A (en) * | 1978-10-10 | 1981-02-24 | Textron, Inc. | Helicopter blade folding system |
EP0057053A1 (fr) * | 1981-01-22 | 1982-08-04 | WESTLAND plc | Rotor d'hélicoptère |
DE3272187D1 (en) * | 1981-11-19 | 1986-08-28 | Westland Plc | Helicopter rotors |
US4738592A (en) * | 1984-09-28 | 1988-04-19 | The Boeing Company | Cam assisted blade folding system |
GB2168794B (en) * | 1984-10-01 | 1987-12-23 | Commw Of Australia | Wing or fin deploying mechanism |
US5031858A (en) * | 1989-11-20 | 1991-07-16 | Bell Helicopter Textron, Inc. | Apparatus and method for folding and locking rotor blades |
US5211538A (en) * | 1991-11-27 | 1993-05-18 | Bell Helicopter Textron Inc. | Method for folding helicopter main rotor blades |
US5868351A (en) * | 1996-05-23 | 1999-02-09 | Bell Helicopter Textron Inc. | Rotor blade stowing system |
FR2836889B1 (fr) * | 2002-03-11 | 2004-05-28 | Eurocopter France | Procede et dispositif de repliage-depliage des pales d'un rotor de giravion |
US20060067822A1 (en) * | 2004-09-24 | 2006-03-30 | D Anna Frank P | Pitch lock and lag positioner for a rotor blade folding system |
US7530790B2 (en) * | 2006-09-20 | 2009-05-12 | Sikorsky Aircraft Corporation | Rotor blade folding system |
WO2010141132A2 (fr) | 2009-04-28 | 2010-12-09 | Sikorsky Aircraft Corporation | Valve de détecteur de proximité et système de verrouillage utilisant celle-ci |
ES2367162B1 (es) * | 2009-08-04 | 2012-09-12 | Heribert Soler Canela | Dispositivo rigidizador de palas de rotor de helicóptero y/o autogiro. |
FR2994417B1 (fr) * | 2012-08-13 | 2015-11-06 | Etienne Jean Rampal | Dispositif de commande de verrou pour pales repliables de giravions autour de leur seule broche d'attache sur leur manchon |
FR3048953B1 (fr) * | 2016-03-21 | 2018-04-06 | Arianegroup Sas | Helice d'aeronef comprenant des pales pliables et a calage variable |
US10239605B2 (en) * | 2016-09-19 | 2019-03-26 | Bell Helicopter Textron Inc. | Chordwise folding and locking of rotor systems |
FR3056554B1 (fr) * | 2016-09-29 | 2018-08-31 | Airbus Helicopters | Butee d'une pale |
CN107054637B (zh) * | 2017-05-25 | 2023-08-15 | 桂艳春 | 一种多旋翼直升机折叠系统 |
US10787244B2 (en) * | 2018-06-19 | 2020-09-29 | Bell Helicopter Textron Inc. | Semi-automatic rotor blade fold mechanism |
US10933986B2 (en) * | 2018-06-22 | 2021-03-02 | Bell Helicopter Textron Inc. | Blade fold method and apparatus for a tilt rotor hub |
US10773793B2 (en) * | 2018-08-05 | 2020-09-15 | Textron Innovations Inc. | Rotor blade locking assembly |
FR3111325B1 (fr) * | 2020-06-16 | 2022-12-09 | Safran Helicopter Engines | Ensemble propulsif a helice a pales repliables et procede de repliement des pales |
CN111806682B (zh) * | 2020-06-19 | 2023-10-03 | 中国科学院地理科学与资源研究所 | 无人机复飞方法 |
CN112591083B (zh) * | 2020-12-25 | 2023-02-28 | 中国直升机设计研究所 | 一种桨叶折叠收藏整流结构 |
US20230067093A1 (en) * | 2021-08-24 | 2023-03-02 | Bell Textron Inc. | Chord Lock Assembly for a Tiltrotor Aircraft |
CN114313250A (zh) * | 2022-01-04 | 2022-04-12 | 广东汇天航空航天科技有限公司 | 折叠装置、螺旋桨、旋翼模组及飞行设备 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2815820A (en) * | 1955-04-19 | 1957-12-10 | Gyrodyne Company Of America In | Power folding rotor blade system for rotary wing aircraft |
GB852841A (en) * | 1957-12-10 | 1960-11-02 | Westland Aircraft Ltd | Improvements in or relating to rotary wing aircraft |
US3153455A (en) * | 1962-10-15 | 1964-10-20 | Boeing Co | Folding mechanism |
DE1260317B (de) * | 1962-10-15 | 1968-02-01 | Boeing Co | Vorrichtung zum Zusammen- und Auseinanderfalten der Drehfluegel eines Drehfluegelflugzeuges |
US3247907A (en) * | 1963-09-18 | 1966-04-26 | Boeing Co | Blade folding mechanism for rotary wing aircraft |
US3187818A (en) * | 1964-12-31 | 1965-06-08 | Boeing Co | Blade folding mechanism |
US3356155A (en) * | 1965-07-29 | 1967-12-05 | Donald L Ferris | Blade fold adjustment and lock |
US3438447A (en) * | 1967-10-12 | 1969-04-15 | United Aircraft Corp | Dual linear output and dual rotary output actuator with redundant drive |
US3612444A (en) * | 1969-11-10 | 1971-10-12 | Ryan Aeronautical Co | Controlled circulation stowable rotor for v/stol aircraft |
-
1971
- 1971-06-01 US US00148824A patent/US3749515A/en not_active Expired - Lifetime
-
1972
- 1972-04-27 CA CA140,737A patent/CA963872A/en not_active Expired
- 1972-05-18 DE DE2224170A patent/DE2224170C2/de not_active Expired
- 1972-05-24 IT IT50457/72A patent/IT958039B/it active
- 1972-05-30 AU AU42869/72A patent/AU458368B2/en not_active Expired
- 1972-05-31 GB GB2541872A patent/GB1375658A/en not_active Expired
- 1972-05-31 FR FR7219456A patent/FR2140108B1/fr not_active Expired
- 1972-06-01 JP JP47053906A patent/JPS5759118B1/ja active Pending
-
1981
- 1981-09-24 JP JP56149662A patent/JPS60280B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA963872A (en) | 1975-03-04 |
JPS57114796A (en) | 1982-07-16 |
DE2224170A1 (de) | 1973-01-04 |
JPS60280B2 (ja) | 1985-01-07 |
US3749515A (en) | 1973-07-31 |
FR2140108A1 (fr) | 1973-01-12 |
JPS5759118B1 (fr) | 1982-12-13 |
GB1375658A (fr) | 1974-11-27 |
FR2140108B1 (fr) | 1977-07-29 |
AU4286972A (en) | 1973-12-06 |
AU458368B2 (en) | 1975-02-27 |
DE2224170C2 (de) | 1982-07-29 |
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