CA959812A - Helicopter blade folding and locking mechanism - Google Patents

Helicopter blade folding and locking mechanism

Info

Publication number
CA959812A
CA959812A CA148,363A CA148363A CA959812A CA 959812 A CA959812 A CA 959812A CA 148363 A CA148363 A CA 148363A CA 959812 A CA959812 A CA 959812A
Authority
CA
Canada
Prior art keywords
locking mechanism
helicopter blade
blade folding
folding
helicopter
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
CA148,363A
Other languages
English (en)
Other versions
CA148363S (en
Inventor
Donald L. Ferris
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.)
Raytheon Technologies Corp
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 CA959812A publication Critical patent/CA959812A/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)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Transmission Devices (AREA)
  • Pivots And Pivotal Connections (AREA)
CA148,363A 1971-11-02 1972-07-31 Helicopter blade folding and locking mechanism Expired CA959812A (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
CA959812A true CA959812A (en) 1974-12-24

Family

ID=22719237

Family Applications (1)

Application Number Title Priority Date Filing Date
CA148,363A Expired CA959812A (en) 1971-11-02 1972-07-31 Helicopter blade folding and locking mechanism

Country Status (7)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631151C2 (de) * 1976-07-10 1983-04-07 Hans 8000 München Leistner Verschwenkbare Tragflügel
US5211538A (en) * 1991-11-27 1993-05-18 Bell Helicopter Textron Inc. Method for folding helicopter main rotor blades
FR2758525B1 (fr) 1997-01-17 1999-03-26 Eurocopter France Rotor a pales repliables, pour voilure tournante d'aeronef
ITMI991127A1 (it) * 1998-05-28 2000-11-21 Eurocopter Deutschland Pala per un rotore privo di supporto di un elicottero
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
WO2010141132A2 (fr) 2009-04-28 2010-12-09 Sikorsky Aircraft Corporation Valve de détecteur de proximité et système de verrouillage utilisant celle-ci
WO2015168496A1 (fr) * 2014-05-02 2015-11-05 Sikorsky Aircraft Corporation Rotor rigide léger avec capacité de repli de pale
US10301015B2 (en) * 2014-08-21 2019-05-28 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 (zh) * 2017-05-23 2023-08-04 安徽中科中涣智能装备股份有限公司 一种折叠机翼的快速展开装置

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
JPS4857398A (fr) 1973-08-11
FR2158542A1 (fr) 1973-06-15
GB1368162A (en) 1974-09-25
FR2158542B1 (fr) 1976-10-29
IT970146B (it) 1974-04-10
US3743441A (en) 1973-07-03
DE2253026A1 (de) 1973-05-03
DE2253026C2 (de) 1982-04-08

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