GB811741A - Aircraft landing gear lock mechanism - Google Patents
Aircraft landing gear lock mechanismInfo
- Publication number
- GB811741A GB811741A GB21891/56A GB2189156A GB811741A GB 811741 A GB811741 A GB 811741A GB 21891/56 A GB21891/56 A GB 21891/56A GB 2189156 A GB2189156 A GB 2189156A GB 811741 A GB811741 A GB 811741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinders
- pivoted
- strut
- jack
- undercarriage
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/18—Operating mechanisms
- B64C25/26—Control or locking systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
- Retarders (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
811,741. Aircraft undercarriages. CLEVELAND PNEUMATIC TOOL CO. July 16, 1956 [Aug. 25,1955], No. 21891/56. Class 4. An aircraft landing gear comprises a strut 10 pivoted to the aircraft frame 9, a brace 17 pivoted to the strut at 19 and to the frame at 21 and formed in two sections pivoted at 38 and means for rotating the connection 38 between positions in which its axis is parallel and non- parallel to the pivots 19, 21. In Fig. 1, the strut 10 forms part of a shock absorbing leg, and cylinders 23, 24 are pivoted to the strut and frame respectively, and fit within cylinders 28, 29 so as to be relatively rotatable but not axially movable with respect thereto. Lugs 37 on the cylinders 28, 29 are pivoted at 38. The rod 41 of a jack 39 is ball-jointed to cylinder 29. On retraction from the Fig. 1 position, the jack first rotates cylinder 29 until the axis of pivot 38 is parallel to those of pivots 19, 21. Further movement of the jack retracts the undercarriage as shown in Fig. 2. On extension, the undercarriage lowers until the cylinder 24 abuts a fixed projection 47. Further extension of the jack then rotates cylinders 29 and 28, until pivot 38 is in the Fig. 1 position, locking the undercarriage down. A rotary stop is fitted to cylinders 28 and 29, to limit the rotation thereof to the extremes shown in Figs. 1 and 2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US811741XA | 1955-08-25 | 1955-08-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB811741A true GB811741A (en) | 1959-04-08 |
Family
ID=22162549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21891/56A Expired GB811741A (en) | 1955-08-25 | 1956-07-16 | Aircraft landing gear lock mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB811741A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3042849A1 (en) * | 2015-01-12 | 2016-07-13 | Messier-Dowty Ltd | Aircraft landing gear assembly stop member |
CN112550681A (en) * | 2020-12-18 | 2021-03-26 | 中航飞机起落架有限责任公司 | Undercarriage locking arm connection structure |
-
1956
- 1956-07-16 GB GB21891/56A patent/GB811741A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3042849A1 (en) * | 2015-01-12 | 2016-07-13 | Messier-Dowty Ltd | Aircraft landing gear assembly stop member |
US9994306B2 (en) | 2015-01-12 | 2018-06-12 | Safran Landing Systems Uk Ltd | Aircraft landing gear assembly stop member |
CN112550681A (en) * | 2020-12-18 | 2021-03-26 | 中航飞机起落架有限责任公司 | Undercarriage locking arm connection structure |
CN112550681B (en) * | 2020-12-18 | 2022-06-14 | 中航飞机起落架有限责任公司 | Undercarriage locking arm connection structure |
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