WO1992005072A1 - Siege d'avion - Google Patents
Siege d'avion Download PDFInfo
- Publication number
- WO1992005072A1 WO1992005072A1 PCT/GB1991/001586 GB9101586W WO9205072A1 WO 1992005072 A1 WO1992005072 A1 WO 1992005072A1 GB 9101586 W GB9101586 W GB 9101586W WO 9205072 A1 WO9205072 A1 WO 9205072A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat
- rigid
- passenger
- frame
- aircraft
- Prior art date
Links
- 238000011068 loading method Methods 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
- B64D11/0619—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
- B64D11/0696—Means for fastening seats to floors, e.g. to floor rails
Definitions
- the present invention relates to aircraft seating.
- the seat design must not only meet new strength requirements but also not allow passenger loads to excee ⁇ those stated in the regulations.
- an aircraft seat comprising a rigid seat frame for securing to the floor of an aircraft, said seat frame supporting a seat sitting portion and a seat back portion, collapsible means for suspending the sitting portion to said rigid frame, energy absorbing strut means of said collapsible means, and means coupled to said collapsible means for securing a passenger in the seat whereby under predetermined conditions of dynamic loading applied to the passenger, said strut means yields to allow the suspended sitting portion of the seat to collapse with respect to the stationarily secured rigid seat frame.
- the energy absorbing strut means collapses the cushion support system of the seat drops into the support frame directing the passenger into a highly cushioned area beneath the seat thus reducing the loading on the passenger.
- the resultant deformation also allows the seat to collapse x ⁇ ithin itself thus providing adequate space for evacuation during an emergency.
- Fig 1 is a side view of a three seater collapsible aircraft seat in an upright position
- Fig 2( . a) is a side view of the same seat as that shown in Fig 1 in a collapsed position and Fig 2(.b) a generalised plan view thereof;
- Fig 3 shows two embodiments of an energy absorbing strut for use with the seat structure shown in Figs I and 2;
- Fig 4 shows two forms of pivotal strut for use with the collapsable seat of Fig 1.
- a seat design is illustrated which meets the criteria of the new regulations referred to above, the seating being provided with an energy absorbing system which allows only minimum forward movement of the front part of the seat when under dynamic stress. In this way the allowable space for egress of the passenger in emergency is maximised.
- FIGs 1 and 2 an aircraft seat for accommodating three passengers is shown having a rigid triangular support structure created between vertical front and sloping rear legs 1 and 2 respectively and a front lateral tube 3.
- the rigid triangular structure is com ⁇ leted bv means of horizontal struts 4.
- the support structure is normally anchored to the floor of an aircraft cabin by means of front and rear leg fittings 5 and 6 engaging a cabin floor track
- a strut 11 is pivotally mounted to a rigid arm 12 which extends normally from each sloping rear leg 2 along the support frame. Each pivotal strut 11 is connected to the rear tube 8 extending along the seat parallel to the front tube 3.
- the seat cushion support system 12 is a flexible diaphragm connected between the front and rear tubes 3 and 8.
- struts S are attached to the rear tube 8 to mount the seat backs, seat arms, and seat back table, as illustrated in Fig 1 and 2, the seat back being formed of upper and lower portions of differing rake with the arm rest mounted beneath the join between the seat back portions as shown.
- Foam seat cushions 13 are assembled on the seat in the usual way.
- the seat will remain stable and the passenger will remain secure in the seat by the seat belts 10'.
- the load exerted through the passenger into the seat belts 10' in an aircraft crash situation for example, is above a predetermined level set by the loading characteristics of the struts 9, it causes the energy absorbing struts 9 to collapse with respect to the rigidly held tube 3.
- the struts 9 collapse towards tube 3 in a controlled manner by the rear tube 8 being allowed to travel forward by pivotal strut 11.
- the energy absorbing struts 9 collapse the cushion support system 12 drops into the seat support structure and between legs 2 directing the passenger into a highly cushioned area and thus reducing the loading on the passenger.
- the resultant deformation allows the seat to collapse within itself thus providing adequate space for evacuation during an emergency.
- the energy absorbing struts 9 can be of a design typically shown in Fig 3. They may comprise, see Fig 3A, a telescopic arrangement wherein a push rod 14 acts against a wedge 15 inserted against the opening of a narrow passageway 16 with respect to the wedge 15 which prevents movement of the rod 14 under normal conditions, but when these are exceeded the wedge 15 is forced down the passageway 16 providing the controlled movement required.
- the push rod 14 may act against an energy absorbing medium M such as gas or rubber, ana be provided with a crumple zone Z.
- the struts II may have one or more pivot points 17 as shown in
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Siège d'avion pourvu d'une structure de support de siège rigide (1, 2, 3, 4) servant à fixer le siège au plancher d'une cabine d'avion. L'assise du siège est pourvue d'étais (9) absorbant l'énergie disposés de chaque côté du siège et reliés à un élément (3) de la structure rigide, lequel élément s'étend le long de la partie frontale de l'assise, et à l'autre extrémité, à une extrémité d'un bras de support (11) monté pivotant sur la structure de support rigide. Celle-ci est construite de manière qu'il y ait un espace libre sous chaque assise. Les ceintures de sécurité (10') attanchant le passager à son siège sont reliées aux étais (9) absorbant l'énergie à l'arrière du siège de sorte que, sous des contraintes dynamiques prédéterminées appliquées au passager, par exemple lors d'un accident d'avion, les étais (9) absorbant l'énergie s'affaissent et le dossier du siège pivote vers l'avant pour pousser le système de support de coussin du siège dans l'espace situé sous le siège en même temps que le passager. Les contraintes agissant sur le passager sont ainsi considérablement réduites et l'affaissement du siège sur lui-même crée un espace adéquat pour l'évacuation des passagers au cours d'une urgence.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9020137.7 | 1990-09-14 | ||
GB909020137A GB9020137D0 (en) | 1990-09-14 | 1990-09-14 | Aircraft seating |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992005072A1 true WO1992005072A1 (fr) | 1992-04-02 |
Family
ID=10682220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1991/001586 WO1992005072A1 (fr) | 1990-09-14 | 1991-09-16 | Siege d'avion |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB9020137D0 (fr) |
WO (1) | WO1992005072A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1190944A1 (fr) * | 2000-09-15 | 2002-03-27 | Britax Aircraft Interiors UK Limited | Siège pour passager |
WO2013181795A1 (fr) * | 2012-06-05 | 2013-12-12 | James Shing Hin Lee | Unité de siège transformable |
WO2015155688A1 (fr) * | 2014-04-07 | 2015-10-15 | Zodiac Seats France | Siège léger |
WO2016128524A1 (fr) * | 2015-02-11 | 2016-08-18 | Composite Designs EU GmbH | Ensemble siège passager d'aéronef léger |
US10696195B2 (en) | 2017-11-15 | 2020-06-30 | Key Safety Systems, Inc. | Seat with energy Absorbing seatback |
WO2021221652A1 (fr) * | 2020-04-30 | 2021-11-04 | Safran Seats Usa Llc | Mécanisme d'arrêt de siège de passager |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2004769A1 (fr) * | 1968-03-26 | 1969-11-28 | Universal Oil Prod Co | |
FR2101129A1 (fr) * | 1970-08-26 | 1972-03-31 | Rignault Jean | |
US4911381A (en) * | 1987-12-28 | 1990-03-27 | Simula, Inc. | Energy-absorbing leg assembly for aircraft passenger seats |
-
1990
- 1990-09-14 GB GB909020137A patent/GB9020137D0/en active Pending
-
1991
- 1991-09-16 WO PCT/GB1991/001586 patent/WO1992005072A1/fr unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2004769A1 (fr) * | 1968-03-26 | 1969-11-28 | Universal Oil Prod Co | |
FR2101129A1 (fr) * | 1970-08-26 | 1972-03-31 | Rignault Jean | |
US4911381A (en) * | 1987-12-28 | 1990-03-27 | Simula, Inc. | Energy-absorbing leg assembly for aircraft passenger seats |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1190944A1 (fr) * | 2000-09-15 | 2002-03-27 | Britax Aircraft Interiors UK Limited | Siège pour passager |
US6565151B2 (en) | 2000-09-15 | 2003-05-20 | Britax Aircraft Interiors Limited | Vehicle passenger seat |
WO2013181795A1 (fr) * | 2012-06-05 | 2013-12-12 | James Shing Hin Lee | Unité de siège transformable |
US9764663B2 (en) | 2012-06-05 | 2017-09-19 | James Shing Hin Lee | Convertible seating unit |
WO2015155688A1 (fr) * | 2014-04-07 | 2015-10-15 | Zodiac Seats France | Siège léger |
WO2016128524A1 (fr) * | 2015-02-11 | 2016-08-18 | Composite Designs EU GmbH | Ensemble siège passager d'aéronef léger |
US11014676B2 (en) | 2015-02-11 | 2021-05-25 | MIRUS Aircraft Seating Ltd. | Lightweight aircraft passenger seat assembly |
US10696195B2 (en) | 2017-11-15 | 2020-06-30 | Key Safety Systems, Inc. | Seat with energy Absorbing seatback |
WO2021221652A1 (fr) * | 2020-04-30 | 2021-11-04 | Safran Seats Usa Llc | Mécanisme d'arrêt de siège de passager |
Also Published As
Publication number | Publication date |
---|---|
GB9020137D0 (en) | 1990-10-24 |
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