WO1992005072A1 - Siege d'avion - Google Patents

Siege d'avion Download PDF

Info

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
Application number
PCT/GB1991/001586
Other languages
English (en)
Inventor
Leslie James Simpson
Original Assignee
Magerik Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Magerik Limited filed Critical Magerik Limited
Publication of WO1992005072A1 publication Critical patent/WO1992005072A1/fr

Links

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.
PCT/GB1991/001586 1990-09-14 1991-09-16 Siege d'avion WO1992005072A1 (fr)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
US4718719A (en) Energy absorbing aircraft seat frame structure
US3603638A (en) Vehicle seat support structure
US5788185A (en) Aircraft seat having improved user lumbar load characteristics during a crash event
US2523960A (en) Seat construction and vehicle seating arrangement
US5133587A (en) Seat
US4375300A (en) Framing system for aircraft passenger seat
US2722267A (en) Seat spring construction
US6742743B2 (en) Aircraft seat
US9604725B2 (en) Aircraft seat with a single-beam structure and aircraft comprising such a seat
US3747979A (en) Cantilevered seat for motorcoach vehicles or the like
EP0423348B1 (fr) Structure de jambe de siege permettant d'absorber l'energie d'impact
US4229040A (en) Seat support structure
US4913487A (en) Aircraft workstation which is convertible between a flight attendant's seat and a computer terminal
US5447360A (en) Side impact seat back structure
US8226163B1 (en) Aircraft divan
US6767055B1 (en) Vehicle seat frame and belt assembly
US2959207A (en) Seat mountings for aircraft and other conveyances
US20140368012A1 (en) Compact aircraft cabin attendant seat
US4249769A (en) Passive restraint for a vehicle
US7399037B2 (en) Double-spar chassis for aircraft passenger seat
JP2007507318A (ja) リクライニングチェア
US20120139302A1 (en) Airplane passenger seat
US2845111A (en) Vehicle chair
JPH0717313A (ja) 衝撃エネルギーを吸収する座席の脚構造
US3653713A (en) Seating structure

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): GB JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE