CA963872A - Powered folding mechanism - Google Patents

Powered folding mechanism

Info

Publication number
CA963872A
CA963872A CA140,737A CA140737A CA963872A CA 963872 A CA963872 A CA 963872A CA 140737 A CA140737 A CA 140737A CA 963872 A CA963872 A CA 963872A
Authority
CA
Canada
Prior art keywords
folding mechanism
powered folding
powered
folding
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA140,737A
Other versions
CA140737S (en
Inventor
Joe D. Puckett
Cecil E. Covington
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textron Inc
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 CA963872A publication Critical patent/CA963872A/en
Expired legal-status Critical Current

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)
CA140,737A 1971-06-01 1972-04-27 Powered folding mechanism Expired CA963872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14882471A 1971-06-01 1971-06-01

Publications (1)

Publication Number Publication Date
CA963872A true CA963872A (en) 1975-03-04

Family

ID=22527551

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,737A Expired CA963872A (en) 1971-06-01 1972-04-27 Powered folding mechanism

Country Status (8)

Country Link
US (1) US3749515A (en)
JP (2) JPS5759118B1 (en)
AU (1) AU458368B2 (en)
CA (1) CA963872A (en)
DE (1) DE2224170C2 (en)
FR (1) FR2140108B1 (en)
GB (1) GB1375658A (en)
IT (1) IT958039B (en)

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 (en) * 1981-01-22 1982-08-04 WESTLAND plc Helicopter rotors
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 (en) * 2002-03-11 2004-05-28 Eurocopter France METHOD AND DEVICE FOR FOLDING-FOLDING THE BLADES OF A ROTOR OF A 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 (en) 2009-04-28 2010-12-09 Sikorsky Aircraft Corporation Proximity sensor valve and lock system using same
ES2367162B1 (en) * 2009-08-04 2012-09-12 Heribert Soler Canela RIGIDIZING DEVICE FOR HELICOPTER ROTORS AND / OR AUTOGIRO.
FR2994417B1 (en) * 2012-08-13 2015-11-06 Etienne Jean Rampal LATCH CONTROL DEVICE FOR FOLDING BLADES OF GIRAVIONS AROUND THEIR ONLY FASTENING PIN ON THE SLEEVE
FR3048953B1 (en) * 2016-03-21 2018-04-06 Arianegroup Sas AIRCRAFT PROPELLER COMPRISING FOLDING BLADES AND VARIABLE SHAFT
US10239605B2 (en) * 2016-09-19 2019-03-26 Bell Helicopter Textron Inc. Chordwise folding and locking of rotor systems
FR3056554B1 (en) * 2016-09-29 2018-08-31 Airbus Helicopters STOPPER OF A BLADE
CN107054637B (en) * 2017-05-25 2023-08-15 桂艳春 Folding system of multi-rotor helicopter
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 (en) * 2020-06-16 2022-12-09 Safran Helicopter Engines PROPULSION ASSEMBLY WITH FOLDING BLADE PROPELLER AND METHOD FOR FOLDING THE BLADE
CN111806682B (en) * 2020-06-19 2023-10-03 中国科学院地理科学与资源研究所 Flying method of unmanned aerial vehicle
CN112591083B (en) * 2020-12-25 2023-02-28 中国直升机设计研究所 Folding collection rectification structure of paddle
US20230067093A1 (en) * 2021-08-24 2023-03-02 Bell Textron Inc. Chord Lock Assembly for a Tiltrotor Aircraft
CN114313250A (en) * 2022-01-04 2022-04-12 广东汇天航空航天科技有限公司 Folding device, screw, rotor module and flight equipment

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
US3153455A (en) * 1962-10-15 1964-10-20 Boeing Co Folding mechanism
DE1260317B (en) * 1962-10-15 1968-02-01 Boeing Co Device for folding the rotary wing of a rotary wing aircraft together and unfolding
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
JPS57114796A (en) 1982-07-16
DE2224170A1 (en) 1973-01-04
JPS60280B2 (en) 1985-01-07
US3749515A (en) 1973-07-31
FR2140108A1 (en) 1973-01-12
JPS5759118B1 (en) 1982-12-13
IT958039B (en) 1973-10-20
GB1375658A (en) 1974-11-27
FR2140108B1 (en) 1977-07-29
AU4286972A (en) 1973-12-06
AU458368B2 (en) 1975-02-27
DE2224170C2 (en) 1982-07-29

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