IT970146B - FOLDING AND LOCKING MECHANISM FOR HELICOPTER BLADE - Google Patents

FOLDING AND LOCKING MECHANISM FOR HELICOPTER BLADE

Info

Publication number
IT970146B
IT970146B IT31208/72A IT3120872A IT970146B IT 970146 B IT970146 B IT 970146B IT 31208/72 A IT31208/72 A IT 31208/72A IT 3120872 A IT3120872 A IT 3120872A IT 970146 B IT970146 B IT 970146B
Authority
IT
Italy
Prior art keywords
folding
locking mechanism
helicopter blade
helicopter
blade
Prior art date
Application number
IT31208/72A
Other languages
Italian (it)
Original Assignee
United Aircraft Corp
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 United Aircraft Corp filed Critical United Aircraft Corp
Application granted granted Critical
Publication of IT970146B publication Critical patent/IT970146B/en

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)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Transmission Devices (AREA)
IT31208/72A 1971-11-02 1972-11-02 FOLDING AND LOCKING MECHANISM FOR HELICOPTER BLADE IT970146B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19488171A 1971-11-02 1971-11-02

Publications (1)

Publication Number Publication Date
IT970146B true IT970146B (en) 1974-04-10

Family

ID=22719237

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31208/72A IT970146B (en) 1971-11-02 1972-11-02 FOLDING AND LOCKING MECHANISM FOR HELICOPTER BLADE

Country Status (7)

Country Link
US (1) US3743441A (en)
JP (1) JPS4857398A (en)
CA (1) CA959812A (en)
DE (1) DE2253026C2 (en)
FR (1) FR2158542B1 (en)
GB (1) GB1368162A (en)
IT (1) IT970146B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631151C2 (en) * 1976-07-10 1983-04-07 Hans 8000 München Leistner Swiveling wings
US5211538A (en) * 1991-11-27 1993-05-18 Bell Helicopter Textron Inc. Method for folding helicopter main rotor blades
FR2758525B1 (en) * 1997-01-17 1999-03-26 Eurocopter France ROTOR WITH FOLDABLE BLADES, FOR AIRCRAFT TURNING WING
ITMI991127A1 (en) * 1998-05-28 2000-11-21 Eurocopter Deutschland SHOVEL FOR A ROTOR WITHOUT HELICOPTER SUPPORT
US6783327B1 (en) 2002-12-12 2004-08-31 Davis Aircraft Products Co., Inc. Helicopter blade folding with blade droop
US7857590B1 (en) * 2006-08-11 2010-12-28 Neal Larry R Folding rotor for a rotorcraft
US8919692B2 (en) 2009-04-28 2014-12-30 Sikorsky Aircraft Corporation Proximity sensor valve and lock system using same
US10611471B2 (en) * 2014-05-02 2020-04-07 Sikorsky Aircraft Corporation Light weight rigid rotor with blade fold capability
WO2016053410A2 (en) * 2014-08-21 2016-04-07 Sikorsky Aircraft Corporation System for shimming blade fold angle about an axis of rotation
US10239605B2 (en) * 2016-09-19 2019-03-26 Bell Helicopter Textron Inc. Chordwise folding and locking of rotor systems
CN107128478B (en) * 2017-05-23 2023-08-04 安徽中科中涣智能装备股份有限公司 Quick unfolding device for folding wing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343610A (en) * 1965-06-29 1967-09-26 Vacca Luigi Mechanical blade locks
US3356155A (en) * 1965-07-29 1967-12-05 Donald L Ferris Blade fold adjustment and lock
US3369611A (en) * 1967-04-27 1968-02-20 Navy Usa Pitch mechanism lock for main helicopter rotor blade
US3438446A (en) * 1967-10-03 1969-04-15 United Aircraft Corp Rotor blade pitch lock
US3484175A (en) * 1967-10-12 1969-12-16 United Aircraft Corp Means and method of synchronously folding helicopter blades

Also Published As

Publication number Publication date
GB1368162A (en) 1974-09-25
CA959812A (en) 1974-12-24
FR2158542B1 (en) 1976-10-29
JPS4857398A (en) 1973-08-11
FR2158542A1 (en) 1973-06-15
US3743441A (en) 1973-07-03
DE2253026C2 (en) 1982-04-08
DE2253026A1 (en) 1973-05-03

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