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 rotante

Info

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
Application number
IT50457/72A
Other languages
English (en)
Italian (it)
Inventor
Cecil Edward Covington
Joe Dan Puckett
Original Assignee
Textron Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Textron Inc filed Critical Textron Inc
Application granted granted Critical
Publication of IT958039B publication Critical patent/IT958039B/it

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)
IT50457/72A 1971-06-01 1972-05-24 Perfezionamento nei meccanismi di piegatura azionati a motore in particolare per pale di aeromobili ad ala rotante IT958039B (it)

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 (de)
JP (2) JPS5759118B1 (de)
AU (1) AU458368B2 (de)
CA (1) CA963872A (de)
DE (1) DE2224170C2 (de)
FR (1) FR2140108B1 (de)
GB (1) GB1375658A (de)
IT (1) IT958039B (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252504A (en) * 1978-10-10 1981-02-24 Textron, Inc. Helicopter blade folding system
EP0057053A1 (de) * 1981-01-22 1982-08-04 WESTLAND plc Hubschrauber-Rotor
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
US8919692B2 (en) 2009-04-28 2014-12-30 Sikorsky Aircraft Corporation Proximity sensor valve and lock system using same
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)

* Cited by examiner, † Cited by third party
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
DE1260317B (de) * 1962-10-15 1968-02-01 Boeing Co Vorrichtung zum Zusammen- und Auseinanderfalten der Drehfluegel eines Drehfluegelflugzeuges
US3153455A (en) * 1962-10-15 1964-10-20 Boeing Co Folding mechanism
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

Also Published As

Publication number Publication date
GB1375658A (de) 1974-11-27
FR2140108B1 (de) 1977-07-29
JPS5759118B1 (de) 1982-12-13
AU4286972A (en) 1973-12-06
FR2140108A1 (de) 1973-01-12
CA963872A (en) 1975-03-04
US3749515A (en) 1973-07-31
DE2224170C2 (de) 1982-07-29
AU458368B2 (en) 1975-02-27
JPS60280B2 (ja) 1985-01-07
DE2224170A1 (de) 1973-01-04
JPS57114796A (en) 1982-07-16

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