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FR2991292B1 - DEVICE FOR AUTOMATICALLY FOLDING BLADES ON ROTORS OF GIRAVIONS OR AIRCRAFT OF ANY KIND - Google Patents

DEVICE FOR AUTOMATICALLY FOLDING BLADES ON ROTORS OF GIRAVIONS OR AIRCRAFT OF ANY KIND

Info

Publication number
FR2991292B1
FR2991292B1 FR1201591A FR1201591A FR2991292B1 FR 2991292 B1 FR2991292 B1 FR 2991292B1 FR 1201591 A FR1201591 A FR 1201591A FR 1201591 A FR1201591 A FR 1201591A FR 2991292 B1 FR2991292 B1 FR 2991292B1
Authority
FR
France
Prior art keywords
giravions
rotors
aircraft
folding blades
automatically 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 - Fee Related
Application number
FR1201591A
Other languages
French (fr)
Other versions
FR2991292A1 (en
Inventor
Etienne Jean Rampal
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR1201591A priority Critical patent/FR2991292B1/en
Publication of FR2991292A1 publication Critical patent/FR2991292A1/en
Application granted granted Critical
Publication of FR2991292B1 publication Critical patent/FR2991292B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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)
FR1201591A 2012-06-04 2012-06-04 DEVICE FOR AUTOMATICALLY FOLDING BLADES ON ROTORS OF GIRAVIONS OR AIRCRAFT OF ANY KIND Expired - Fee Related FR2991292B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1201591A FR2991292B1 (en) 2012-06-04 2012-06-04 DEVICE FOR AUTOMATICALLY FOLDING BLADES ON ROTORS OF GIRAVIONS OR AIRCRAFT OF ANY KIND

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1201591A FR2991292B1 (en) 2012-06-04 2012-06-04 DEVICE FOR AUTOMATICALLY FOLDING BLADES ON ROTORS OF GIRAVIONS OR AIRCRAFT OF ANY KIND

Publications (2)

Publication Number Publication Date
FR2991292A1 FR2991292A1 (en) 2013-12-06
FR2991292B1 true FR2991292B1 (en) 2014-05-23

Family

ID=46754498

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1201591A Expired - Fee Related FR2991292B1 (en) 2012-06-04 2012-06-04 DEVICE FOR AUTOMATICALLY FOLDING BLADES ON ROTORS OF GIRAVIONS OR AIRCRAFT OF ANY KIND

Country Status (1)

Country Link
FR (1) FR2991292B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107054637B (en) * 2017-05-25 2023-08-15 桂艳春 Folding system of multi-rotor helicopter
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484175A (en) * 1967-10-12 1969-12-16 United Aircraft Corp Means and method of synchronously folding helicopter blades
US4738592A (en) * 1984-09-28 1988-04-19 The Boeing Company Cam assisted blade folding system
US5031858A (en) * 1989-11-20 1991-07-16 Bell Helicopter Textron, Inc. Apparatus and method for folding and locking rotor blades
US20060067822A1 (en) * 2004-09-24 2006-03-30 D Anna Frank P Pitch lock and lag positioner for a rotor blade folding system
EP2555974B1 (en) * 2010-06-15 2015-08-12 Bell Helicopter Textron Inc. Method and apparatus for in-flight blade folding

Also Published As

Publication number Publication date
FR2991292A1 (en) 2013-12-06

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Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 4

ST Notification of lapse

Effective date: 20170228