Aircraft landing gear
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0899766
(2004-07-27)
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우선권정보 |
FR-0002673 (2000-03-02) |
발명자
/ 주소 |
- Derrien, Michel
- Parzy, Benjamin
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
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An aircraft landing gear includes a leg having a strut receiving a telescopic rod to slide on a sliding axis, the strut being hinged to an aircraft structure and being capable of pivoting about a pivot axis that is highly offset from the sliding axis. The landing gear further includes a connection s
An aircraft landing gear includes a leg having a strut receiving a telescopic rod to slide on a sliding axis, the strut being hinged to an aircraft structure and being capable of pivoting about a pivot axis that is highly offset from the sliding axis. The landing gear further includes a connection structure essentially formed by two panels connecting two axially separate points of the strut to a common axis structure extending along the strut pivot axis. In the gear-down position, the panels are one above the other, the top panel being connected to the strut via a high attachment which is rigid in twisting, while the bottom panel is connected to the strut via a low attachment which tolerates twisting, thereby enabling the strut to warp to some extent when the aircraft is turning while taxiing.
대표청구항
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1. An aircraft landing gear, comprising:a leg (11) including a strut (12) in which a telescopic shock-absorber rod (13) slides along a sliding axis (Z), the free end of the rod being hinged to a rocker beam (14) carrying a wheel set having multiple axles, said strut being hinged to a structure of th
1. An aircraft landing gear, comprising:a leg (11) including a strut (12) in which a telescopic shock-absorber rod (13) slides along a sliding axis (Z), the free end of the rod being hinged to a rocker beam (14) carrying a wheel set having multiple axles, said strut being hinged to a structure of the aircraft and being capable of being pivoted by an associated connection structure about a substantially horizontal axis (X) that is highly offset from the sliding axis (Z) of the telescopic rod (13) which is vertical in the gear-down position; and wherein the connection structure (100) comprises two panels (101, 102) connecting two axially separated points of the strut (12) to a common axis structure (103) extending along the pivot axis (X) of said strut, in such a manner that in the gear-down position said panels are disposed one above the other, with a top panel (101) which is connected to the strut (12) via a high attachment (105), and with a bottom panel (102) which is connected to the strut (12) via a low attachment (106); and wherein the high and low attachments (105, 106) are provided level with sliding bearing surfaces (21, 22) for the telescopic rod (13) in the strut (12) when the rod is in its pushed-in position corresponding to supporting the aircraft on the ground. 2. The landing gear according to claim 1, wherein the top panel (101) and the bottom panel (102) both extend in respective planes each containing the pivot axis (X) of the strut (12), the plane of the top panel (101) being substantially orthogonal to the sliding axis (Z) of the telescopic rod (13).3. The landing gear according to claim 1, wherein the top and bottom panels (101, 102) are constituted by plane pieces with stiffened margins.4. The landing gear according to claim 1, wherein the common axis structure (103) is a separate part including the pivot bearings (104) enabling the strut (12) to pivot about its pivot axis (X), said separate part being fixed to the top and bottom panels (101, 102) via lugs that are secured thereto and/or to said panels.5. The landing gear according to claim 1, wherein the common axis structure (103) is integral with one of the panels (101).6. The landing gear according to claim 1, wherein the common axis structure (103) includes a panel portion (120) that is fixed to the top panel (101) and/or to the bottom panel (102), said panel portion being coplanar with and extending the associated panel.7. A method of strengthing an aircraft landing gear, said method comprising the steps of:forming a leg (11) to include a strut (12) in which a telescopic shock-absorber rod (13) slides along a sliding axis (Z), a free end of said rod being hinged to a rocker beam (14) carrying a wheel set having multiple axles, said strut being hinged to a structure of said aircraft and being capable of being pivoted by an associated connection structure about a substantially horizontal axis (X) that is highly offset from said sliding axis (Z) of said telescopic rod (13) which is vertical in a gear-down position; and forming said connection structure (100) from two panels (101, 102) which are connected at two axially separated points of said strut (12) to a common axis structure (103) extending along said pivot axis (X) of said strut; orienting said panels (101, 102) in such a manner that in said gear-down position said panels are disposed one above the other, a top panel (101) of said panels being connected to said strut (12) via a high attachment (105), and a bottom panel (102) of said panels being connected to said strut (12) via a low attachment (106); and providing said high and low attachments (105, 106) so as to be level with sliding bearing surfaces (21, 22) for said telescopic rod (13) in said strut (12) when said rod is in its pushed-in position corresponding to supporting said aircraft on the ground.
이 특허에 인용된 특허 (6)
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Dazet Francis,FRX ; Maurin Andre,FRX, Aircraft comprising a landing gear with controlled detachment in the event of an accident.
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Sharples Wilbert (Marietta GA), Aircraft landing gear torque scissors with universal joint and quick disconnect.
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Derrien, Michel; Parzy, Benjamin, Aircraft landing gear with highly offset strut pivot axis.
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Brown Robert B. (Kent WA) Stepien John A. (Renton WA), Body-braced main airplane landing gear.
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James Milton E. (Vashon WA) Stepien John A. (Renton WA), Main landing gear with variable length drag brace.
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Barnoin, Pierre; Mens, Jacques M. N.; Merle, Gilbert, Structural supports and aircraft landing gears including such supports.
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