JPS4857398A - - Google Patents
Info
- Publication number
- JPS4857398A JPS4857398A JP47107057A JP10705772A JPS4857398A JP S4857398 A JPS4857398 A JP S4857398A JP 47107057 A JP47107057 A JP 47107057A JP 10705772 A JP10705772 A JP 10705772A JP S4857398 A JPS4857398 A JP S4857398A
- Authority
- JP
- Japan
- 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)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Pivots And Pivotal Connections (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19488171A | 1971-11-02 | 1971-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4857398A true JPS4857398A (ja) | 1973-08-11 |
Family
ID=22719237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47107057A Pending JPS4857398A (ja) | 1971-11-02 | 1972-10-25 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3743441A (ja) |
| JP (1) | JPS4857398A (ja) |
| CA (1) | CA959812A (ja) |
| DE (1) | DE2253026C2 (ja) |
| FR (1) | FR2158542B1 (ja) |
| GB (1) | GB1368162A (ja) |
| IT (1) | IT970146B (ja) |
Families Citing this family (11)
| 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 |
| 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 (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)
| 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 |
-
1971
- 1971-11-02 US US00194881A patent/US3743441A/en not_active Expired - Lifetime
-
1972
- 1972-07-31 CA CA148,363A patent/CA959812A/en not_active Expired
- 1972-10-06 GB GB4620072A patent/GB1368162A/en not_active Expired
- 1972-10-25 JP JP47107057A patent/JPS4857398A/ja active Pending
- 1972-10-26 FR FR7239086A patent/FR2158542B1/fr not_active Expired
- 1972-10-28 DE DE2253026A patent/DE2253026C2/de not_active Expired
- 1972-11-02 IT IT31208/72A patent/IT970146B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1368162A (en) | 1974-09-25 |
| CA959812A (en) | 1974-12-24 |
| IT970146B (it) | 1974-04-10 |
| FR2158542B1 (ja) | 1976-10-29 |
| FR2158542A1 (ja) | 1973-06-15 |
| US3743441A (en) | 1973-07-03 |
| DE2253026C2 (de) | 1982-04-08 |
| DE2253026A1 (de) | 1973-05-03 |