GB684388A - Improvements in the mounting of aircraft landing wheels - Google Patents
Improvements in the mounting of aircraft landing wheelsInfo
- Publication number
- GB684388A GB684388A GB15468/51A GB1546851A GB684388A GB 684388 A GB684388 A GB 684388A GB 15468/51 A GB15468/51 A GB 15468/51A GB 1546851 A GB1546851 A GB 1546851A GB 684388 A GB684388 A GB 684388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axle
- wheels
- aircraft
- support
- shaft
- 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
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/34—Alighting gear characterised by elements which contact the ground or similar surface wheeled type, e.g. multi-wheeled bogies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Handcart (AREA)
- Gear Transmission (AREA)
Abstract
684,388. Aircraft undercarriages. GOODYEAR AIRCRAFT CORPORATION. June 29, 1951. [March 26, 1951] No. 15468/51. Class 4. An aircraft landing gear comprises a strut, an axle support attached to the bottom of the strut, a landing wheel axle mounted slidably in the said support and axially slidable therein, an operating mechanism, also mounted in the said support and connected with the said axle in such manner as to allow it to be moved from an inner position and vice versa, and driving elements extending from the said operating mechanism to a point outside said support and arranged so as to be connected with an outside power source. The invention may be applied to undercarriages having single or double wheels in the embodiment shown in Figs. 2 and 3, applied to two wheels, the undercarriage leg 1 shown in a plan cross-section carries at its lower end a cross head 2 which supports axially slidable wheel axles 3 and 4 each prevented from rotating by a key 6. Each axle is bored at 17 and internally threaded at 15 to receive a transverse operating shaft 8 formed at each end with a threaded portion 14 and a cylindrical extension 16 and having at its centre a worm wheel 9, axial movement of the shaft being prevented by collars 10 secured by nuts 12 within recesses 13 in the head 2. Each axle is slotted at 24 to receive a stud 23 which limits its axial movement. A driving shaft 18, fitted with a worm to mesh with the worm wheel 9, is mounted in bearings 20, 21 and is provided with a connection to a power take-off 22 actuated from the pilot's cockpit. When the undercarriage is extended the axles 3, 4 are driven apart to provide a maximum track for the wheels, but during retraction the power drive 22 is operated to draw the wheels together in order that they may occupy a minimum space within the aircraft structure. In an alternative embodiment Figs. 6-9 (not shown) the inner end of each axle is pivotally connected to a toggle lever in turn connected to pins on a toggle disc rotated by a source of power similar to that employed for the operation of the shaft 18.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US684388XA | 1951-03-26 | 1951-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB684388A true GB684388A (en) | 1952-12-17 |
Family
ID=22082586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15468/51A Expired GB684388A (en) | 1951-03-26 | 1951-06-29 | Improvements in the mounting of aircraft landing wheels |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH300248A (en) |
DE (1) | DE879515C (en) |
FR (1) | FR1039384A (en) |
GB (1) | GB684388A (en) |
NL (1) | NL162932B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2034229A1 (en) * | 1969-02-27 | 1970-12-11 | Snecma | |
US3759468A (en) * | 1971-03-01 | 1973-09-18 | Mc Donnell Douglas Corp | Extendible gear axle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2755041A (en) * | 1954-10-25 | 1956-07-17 | William L Lewis | Aircraft landing gear |
-
1951
- 1951-06-29 GB GB15468/51A patent/GB684388A/en not_active Expired
- 1951-07-04 FR FR1039384D patent/FR1039384A/en not_active Expired
- 1951-07-26 DE DEG6625A patent/DE879515C/en not_active Expired
- 1951-07-26 NL NL162932A patent/NL162932B/en not_active IP Right Cessation
-
1952
- 1952-02-09 CH CH300248D patent/CH300248A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2034229A1 (en) * | 1969-02-27 | 1970-12-11 | Snecma | |
US3759468A (en) * | 1971-03-01 | 1973-09-18 | Mc Donnell Douglas Corp | Extendible gear axle |
Also Published As
Publication number | Publication date |
---|---|
FR1039384A (en) | 1953-10-06 |
DE879515C (en) | 1953-06-15 |
CH300248A (en) | 1954-07-15 |
NL162932B (en) | 1956-10-15 |
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