GB1287099A - Improvements in or relating to aircraft ground-wheel steering mechanisms - Google Patents
Improvements in or relating to aircraft ground-wheel steering mechanismsInfo
- Publication number
- GB1287099A GB1287099A GB5950768A GB5950768A GB1287099A GB 1287099 A GB1287099 A GB 1287099A GB 5950768 A GB5950768 A GB 5950768A GB 5950768 A GB5950768 A GB 5950768A GB 1287099 A GB1287099 A GB 1287099A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rack
- pinion
- recess
- steering
- detents
- 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
- B64C25/50—Steerable undercarriages; Shimmy-damping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
Abstract
1287099 Steering aircraft ground wheels HAWKER SIDDELEY DYNAMICS Ltd 15 Dec 1969 [13 Dec 1968] 59507/68 Heading B7H An aircraft ground wheel e.g. nosewheel, steering mechanism includes a rack-and-pinion assembly in which the pinion has around a minor portion of its periphery so that when the pinion 1 runs out of mesh with the rack 4 castoring is possible, provision being made to lock the rack in the position, in either direction of steering, at which it ceases to be in driving engagement with the pinion. As shown the rack 4, connected to power pistons 5, 5a is movable to the left or right by its engagement with teeth 11 of the rotatable pinion 1. At the position at which the rack and pinion run out of mesh during steering a recess 16 is provided in the rack housing. The rack is provided with a pair of detents 6, 6a co-operable with the recess to lock the rack at that position. The detents are biased by springs such as to oppose any tendency for them to enter the recess, pressure being exerted, to oppose this bias, during rotation of the pinion, by cut-aways 17 and a cam surface 19 on the pinion acting on the head of a detent as the rack moves. Once engaged in the recess, a detent is retained therein by the cam surface 19 until the pinion returns to re-engage with the rack. The rack is constructed in two halves bolted together. In modifications (not shown), the detents and co-operating cam are arranged away from the plane of rotation of the teeth 11 and the cam is separate from the gear, and the rack is a one-piece part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5950768A GB1287099A (en) | 1968-12-13 | 1968-12-13 | Improvements in or relating to aircraft ground-wheel steering mechanisms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5950768A GB1287099A (en) | 1968-12-13 | 1968-12-13 | Improvements in or relating to aircraft ground-wheel steering mechanisms |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1287099A true GB1287099A (en) | 1972-08-31 |
Family
ID=10483884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5950768A Expired GB1287099A (en) | 1968-12-13 | 1968-12-13 | Improvements in or relating to aircraft ground-wheel steering mechanisms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1287099A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2568218A1 (en) * | 1984-07-30 | 1986-01-31 | Messier Hispano Bugatti Sa | AIRCRAFT AIRCRAFT LIFT WITH RELEASE AND AUTOMATIC SAFETY CLUTCH |
EP2366623A3 (en) * | 2010-03-05 | 2014-01-01 | Goodrich Corporation | Landing gear steering systems |
US8944368B2 (en) | 2010-01-26 | 2015-02-03 | Airbus Operations Limited | Aircraft steering actuator |
-
1968
- 1968-12-13 GB GB5950768A patent/GB1287099A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2568218A1 (en) * | 1984-07-30 | 1986-01-31 | Messier Hispano Bugatti Sa | AIRCRAFT AIRCRAFT LIFT WITH RELEASE AND AUTOMATIC SAFETY CLUTCH |
US4610411A (en) * | 1984-07-30 | 1986-09-09 | Messier-Hispano-Bugatti (S.A.) | Steerable aircraft landing gear having automatic safety declutching and enclutching |
US8944368B2 (en) | 2010-01-26 | 2015-02-03 | Airbus Operations Limited | Aircraft steering actuator |
EP2366623A3 (en) * | 2010-03-05 | 2014-01-01 | Goodrich Corporation | Landing gear steering systems |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |