JPS57144197A - Helicopter - Google Patents
HelicopterInfo
- Publication number
- JPS57144197A JPS57144197A JP57007735A JP773582A JPS57144197A JP S57144197 A JPS57144197 A JP S57144197A JP 57007735 A JP57007735 A JP 57007735A JP 773582 A JP773582 A JP 773582A JP S57144197 A JPS57144197 A JP S57144197A
- Authority
- JP
- Japan
- Prior art keywords
- 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.)
- Pending
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)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8101871 | 1981-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57144197A true JPS57144197A (en) | 1982-09-06 |
Family
ID=10519126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57007735A Pending JPS57144197A (en) | 1981-01-22 | 1982-01-22 | Helicopter |
Country Status (3)
Country | Link |
---|---|
US (1) | US4436483A (ja) |
EP (1) | EP0057053A1 (ja) |
JP (1) | JPS57144197A (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3272187D1 (en) * | 1981-11-19 | 1986-08-28 | Westland Plc | Helicopter rotors |
US5031858A (en) * | 1989-11-20 | 1991-07-16 | Bell Helicopter Textron, Inc. | Apparatus and method for folding and locking rotor blades |
EP0600797A1 (fr) * | 1992-12-03 | 1994-06-08 | Lucas France S.A. | Dispositif de verrouillage des pales du rotor d'un hélicoptère à l'encontre d'un battement |
GB9323439D0 (en) * | 1993-11-13 | 1994-01-05 | Coats Ltd J & P | Method for making thread |
FR2742726B1 (fr) * | 1995-12-22 | 1998-02-20 | Eurocopter France | Dispositif de repliage d'une pale d'un rotor de giravion |
US5868351A (en) * | 1996-05-23 | 1999-02-09 | Bell Helicopter Textron Inc. | Rotor blade stowing system |
FR2750948B1 (fr) * | 1996-07-12 | 1998-10-30 | Eurocopter France | Dispositif de blocage, au moins en pas, des pales d'un rotor |
FR2758525B1 (fr) | 1997-01-17 | 1999-03-26 | Eurocopter France | Rotor a pales repliables, pour voilure tournante d'aeronef |
FR2765550B1 (fr) * | 1997-07-07 | 1999-10-01 | Eurocopter France | Dispositif de blocage en pas des pales d'un rotor principal de giravion |
FR2836889B1 (fr) | 2002-03-11 | 2004-05-28 | Eurocopter France | Procede et dispositif de repliage-depliage des pales d'un rotor de giravion |
US6783327B1 (en) * | 2002-12-12 | 2004-08-31 | Davis Aircraft Products Co., Inc. | Helicopter blade folding with blade droop |
US6860450B2 (en) * | 2002-12-23 | 2005-03-01 | The Boeing Company | Apparatus and method for folding helicopter rotor blades for storage and transport of helicopter |
US20060067822A1 (en) * | 2004-09-24 | 2006-03-30 | D Anna Frank P | Pitch lock and lag positioner for a rotor blade folding system |
US20060120873A1 (en) * | 2004-12-03 | 2006-06-08 | Sikorsky Aircraft Corporation | Damper positioner for a rotor blade folding system |
FR2890936B1 (fr) | 2005-09-19 | 2009-04-24 | Eurocopter France | Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion |
US7798442B2 (en) * | 2006-03-17 | 2010-09-21 | Sikorsky Aircraft Corporation | Rotor assemblies having automatic blade folding systems |
US7857590B1 (en) | 2006-08-11 | 2010-12-28 | Neal Larry R | Folding rotor for a rotorcraft |
US7530790B2 (en) * | 2006-09-20 | 2009-05-12 | Sikorsky Aircraft Corporation | Rotor blade folding system |
US8038394B2 (en) * | 2008-01-16 | 2011-10-18 | Sikorsky Aircraft Corporation | System and method of damping a 1P motion |
WO2010141132A2 (en) | 2009-04-28 | 2010-12-09 | Sikorsky Aircraft Corporation | Proximity sensor valve and lock system using same |
US9108727B2 (en) | 2010-06-16 | 2015-08-18 | Sikorsky Aircraft Corporation | Blade fold system monitoring |
WO2015133980A1 (en) * | 2014-03-03 | 2015-09-11 | Sikorsky Aircraft Corporation | Single actuator blade fold linkage |
US11235858B2 (en) | 2014-12-02 | 2022-02-01 | Textron Innovations Inc. | Blade fold mechanism |
US10336447B2 (en) * | 2014-12-02 | 2019-07-02 | Bell Helicopter Textron Inc. | Folding proprotor gimbal lock and blade lock mechanism |
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1163681B (de) * | 1960-01-16 | 1964-02-20 | Boeing Co | Zum Beiklappen eines Drehfluegels dienende Einrichtung |
US3187818A (en) * | 1964-12-31 | 1965-06-08 | Boeing Co | Blade folding mechanism |
US3749515A (en) * | 1971-06-01 | 1973-07-31 | Textron Inc | Powered folding mechanism |
-
1982
- 1982-01-07 EP EP82300083A patent/EP0057053A1/en not_active Withdrawn
- 1982-01-08 US US06/338,103 patent/US4436483A/en not_active Expired - Fee Related
- 1982-01-22 JP JP57007735A patent/JPS57144197A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0057053A1 (en) | 1982-08-04 |
US4436483A (en) | 1984-03-13 |
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