FR2510512A1 - SLIDE FOR ADJUSTING SEATS, ESPECIALLY AIRCRAFT SEATS - Google Patents

SLIDE FOR ADJUSTING SEATS, ESPECIALLY AIRCRAFT SEATS Download PDF

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Publication number
FR2510512A1
FR2510512A1 FR8213330A FR8213330A FR2510512A1 FR 2510512 A1 FR2510512 A1 FR 2510512A1 FR 8213330 A FR8213330 A FR 8213330A FR 8213330 A FR8213330 A FR 8213330A FR 2510512 A1 FR2510512 A1 FR 2510512A1
Authority
FR
France
Prior art keywords
slide
seat
seats
shear
metal
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.)
Withdrawn
Application number
FR8213330A
Other languages
French (fr)
Inventor
Raymond Charles Houghton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bristol Composite Materials Engineering Ltd
Original Assignee
Bristol Composite Materials Engineering Ltd
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 Bristol Composite Materials Engineering Ltd filed Critical Bristol Composite Materials Engineering Ltd
Publication of FR2510512A1 publication Critical patent/FR2510512A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4242—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42736—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the whole seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D33/00—Seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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
    • B64D11/0689—Arrangements of seats, or adaptations or details specially adapted for aircraft seats specially adapted for pilots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
    • F16F7/127—Vibration-dampers; Shock-absorbers using plastic deformation of members by a blade element cutting or tearing into a quantity of material; Pultrusion of a filling material

Abstract

ENSEMBLE POUR SIEGE D'AERONEF PRESENTANT UN OU PLUSIEURS ORGANES DE MAINTIEN 2 POUVANT VENIR EN CONTACT AVEC LE SIEGE EN COULISSANT SUR UNE GLISSIERE. LA GLISSIERE PRESENTE DES GARNITURES INTERNE ET EXTERNE 7, 8 SEPAREES PAR DES MOYENS DE MONTAGE A RUPTURE PAR CISAILLEMENT 6 DE MANIERE QUE LORS D'UN CHOC BRUSQUE, PAR EXEMPLE AU COURS D'UN ECRASEMENT DE L'AERONEF, LA MATIERE A RUPTURE PAR CISAILLEMENT 6 SE ROMPE ET QUE LA GARNITURE EXTERNE 8 FASSE PARTIE DU SUPPORT VENANT EN CONTACT AVEC LES TUBES DE MAINTIEN 2.AIRCRAFT SEAT ASSEMBLY HAVING ONE OR MORE HOLDING ORGANS 2 WHICH MAY COME INTO CONTACT WITH THE SEAT BY SLIDING ON A SLIDE. THE SLIDE HAS INTERNAL AND EXTERNAL TRIMS 7, 8 SEPARATED BY SHEAR-BREAKING MOUNTING MEANS 6 SO THAT DURING AN EMERGENCY SHOCK, FOR EXAMPLE DURING AN AIRCRAFT CRUSH, THE MATERIAL BREAKED BY SHEAR 6 BREAKS AND THE EXTERNAL TRIM 8 FASTS PART OF THE SUPPORT COMING INTO CONTACT WITH THE HOLDING TUBES 2.

Description

La présente invention concerne des organes deThe present invention relates to

support et plus particulièrement des glissières.  support and more particularly slides.

On connaît bien des glissières pour le support de la charge d'un objet glissant le long d'un tube ou d'une barre et pour pallier aux frictions ainsi engendrées De telles glissières dépendent pour leur fonctionnement de la symétrie du tube car toute distorsion de ce dernier provoque  Slides are well known for supporting the load of an object sliding along a tube or a bar and to compensate for the frictions thus generated. Such slides depend for their operation on the symmetry of the tube because any distortion of the latter causes

un pincement de la glissière sur le tube.  a pinch of the slide on the tube.

On utilise des glissières dans des sièges réglables d'aéronefs,  Sliders are used in adjustable aircraft seats,

par exemple d'aéronefs à voilure tournante ou hélicoptères.  for example rotary-wing aircraft or helicopters.

Le siège est retenu et guidé par des glissières pouvant coulisser, de manière réglable, sur des tubes parallèles Lors de dislocations violentes, par exemple si l'aéronef s'écrase au sol, les tubes portant le siège peuvent se déformer et faire que la glissière pince le tube, ce qui empêche que le choc causé au pilote soit dissipé par la course du siège  The seat is retained and guided by slides which can slide, in an adjustable manner, on parallel tubes During violent dislocations, for example if the aircraft crashes on the ground, the tubes carrying the seat can deform and cause the slide pinches the tube, preventing the shock caused to the pilot from being dissipated by the seat stroke

sur une distance d'atténuation de chocs.  over a shock attenuation distance.

Une alternative aux glissières est constituée par un support monté dans un logement sphérique, mais il est vraisemblable que cela ajoute du poids au Système et nécessite un cockpit plus volumineux La présente invention  An alternative to the slides is a support mounted in a spherical housing, but it is likely that this adds weight to the System and requires a larger cockpit The present invention

se rapporte à des glissières qui surmontent ou diminuent cer-  refers to slides that surmount or decrease certain

tains des inconvénients ci-dessus.some of the above drawbacks.

Ainsi, la glissière conforme à la présente invention peut être fixée sur un organe fixe ou mobile comprenant des garnitures annulaires internes et externes écarté 3 l'une de  Thus, the slide according to the present invention can be fixed on a fixed or mobile member comprising internal and external annular linings separated 3 one of

l'autre par une matière de montage à rupture par cisaillemen-l.  the other by a shear-breaking mounting material.

En usage normal, par exemple sur un siège d'hélicop-  In normal use, for example on a helicopter seat

tère, la glissière agit en tant que support habituel avec la garniture interne venant en prise avec les tubes de maintien du siège Lors d'un cisaillement tel que celui produit par l'écrasement de l'hélicoptère, la matière de montage prévue entre les garnitures internes et externes peut se rompre de telle manière que la garniture externe fasse partie du  tère, the slide acts as a usual support with the internal lining coming into engagement with the tubes of support of the seat During a shearing such as that produced by the crushing of the helicopter, the mounting material provided between the linings internal and external can rupture so that the external lining is part of the

support venant en prise avec les tubes de maintien.  support engaging the holding tubes.

La matière de montage à rupture par cisaillement comprend de préférence, une matière polymère qui est fabriquée pour présenter des propriétés d'arrachement ou de cisaillement appropriées, et on utilise par exemple, du polyuréthane ou du fluorosilicium La force nécessaire pour arracher ou cisailler la matière de montage est prévue pour convenir à l'application particulière envisagée. Les garnitures internes sont de préférence réalisées à partir d'un métal tel qu'un métal auto-lubrifiant par exemple du bronze au phosphore Les garnitures externes sont également de préférence réalisées à partir d'une matière auto-lubrifiante telle que celle connue sous le nom de Delrin ou d'Acétile qui présente un point de fusion remarquablement élevé En variante, les faces de glissement du support peuvent être lubrifiées par de l'huile, de la  The shear failure mounting material preferably comprises a polymeric material which is manufactured to exhibit suitable tearing or shearing properties, and polyurethane or fluorosilicon is used, for example, the force required to tear or shear the material mounting is provided to suit the particular application being considered. The internal linings are preferably made from a metal such as a self-lubricating metal, for example phosphor bronze. The external linings are also preferably made from a self-lubricating material such as that known under the name of Delrin or Acetile which has a remarkably high melting point As a variant, the sliding faces of the support can be lubricated with oil,

graisse ou toute matière appropriée.  grease or any suitable material.

L'invention comprend également un ensemble formant siège pouvant être utilisé dans un aéronef, et qui comprend un siège et un ou plusieurs organes de maintien, par exemple des tubes, le siège pouvant venir en prise avec les organes de maintien en coulissant sur une glissière comme  The invention also includes a seat assembly which can be used in an aircraft, and which comprises a seat and one or more holding members, for example tubes, the seat which can engage the holding members by sliding on a slide. as

cela a été indiqué ci-dessus.this has been indicated above.

Diverses autres caractéristique de l'invention  Various other features of the invention

ressortent d'ailleurs de la description détaillée qui suit.  moreover emerge from the detailed description which follows.

Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple non limitatif, au dessin  An embodiment of the object of the invention is shown, by way of nonlimiting example, in the drawing

annexé.Annex.

La fig 1 est une vue latérale schématique d'un  Fig 1 is a schematic side view of a

siège de pilote d'hélicoptère.helicopter pilot seat.

Les fig 2 et 3 sont des coupes verticales du support à rupture par cisaillement du siège, avant et après  Figs 2 and 3 are vertical sections of the seat support by shearing of the seat, before and after

le cisaillement.shear.

Le siège 1 du pilote est fixé à deux tubes de maintien 2 cylindriques et inclinés par l'intermédiaire de supports supérieur et inférieur 3 prévus sur chaque tube 2 Le siège l est normalement réglable par le pilote sur une distance limitée Le siège peut se déplacer davantage vers le bas à l'extérieur des limites normales de réglage A, et ce déplacement est indiqué par des lignes en traits interrompus Ce déplacement ne serait utilisé par exemple qu'au cours d'un écrasement de l'hélicoptère et il sert de trajet d'atténuation de choc D (fig 1) Le trajet d'atténuation de choc est contrôlé à une charge constante pour donner un effet amortisseur. Le support 3 comprend une boîte 4 fixée par une barre métallique 5 au siège 1 du pilote, la botte 4 entourant une monture flexible 6 placée en sandwich entre des garnitures interne et externe 7 et 8 Le tube de maintien 2 est en contact glissant avec la garniture interne 7 et le  The pilot's seat 1 is fixed to two cylindrical holding tubes 2 and inclined by means of upper and lower supports 3 provided on each tube 2 The seat l is normally adjustable by the pilot over a limited distance The seat can move more down outside the normal adjustment limits A, and this movement is indicated by dashed lines This movement would be used for example only during a helicopter crash and it serves as a route d 'shock attenuation D (fig 1) The shock attenuation path is controlled at a constant load to give a damping effect. The support 3 comprises a box 4 fixed by a metal bar 5 to the seat 1 of the pilot, the boot 4 surrounding a flexible frame 6 sandwiched between internal and external linings 7 and 8 The holding tube 2 is in sliding contact with the internal trim 7 and the

support 3 La monture flexible 6 permet au support 3 d'ef-  support 3 The flexible mount 6 allows the support 3 to ef-

fectuer un faible mouvement angulaire autour du tube central 2 (fig 2) Les garnitures sont fabriquées à partir  make a slight angular movement around the central tube 2 (fig 2) The linings are made from

d'un métal auto-lubrifiant.of a self-lubricating metal.

Dans des conditions de cisaillement extrêmes, par exemple si l'hélicoptère s'écrase au sol et que les tubes de maintien fléchissent, la monture flexible 6 est prévue pour se cisailler et se séparer de la garniture interne 7 des supports de manière à permettre à la garniture externe 8 d'agir en tant que support pour le siège 1 sur le tube de maintien 2 et de dépasser le point de fléchissement 9 afin de tirer avantage du trajet d'atténuation de choc Cet  Under extreme shear conditions, for example if the helicopter crashes to the ground and the holding tubes flex, the flexible mount 6 is provided to shear and separate from the internal lining 7 of the supports so as to allow the external lining 8 to act as a support for the seat 1 on the retaining tube 2 and to exceed the point of deflection 9 in order to take advantage of the shock attenuation path Cet

état est illustré à la fig 3.state is illustrated in fig 3.

Claims (5)

REVENDICATIONS 1 Glissière pouvant être fixée à un organe fixe ou mobile et comprenant des -garnitures annulaires internes et externes écartos; l'une de l'autre par une matière de montage à rupture par cisaillement. 2 Glissière selon la revendication 1, caractérisée en ce que la matière de montage à rupture par cisaillement comporte une matière polymère I 3 Glissière selon la revendication 2, caractérisée en ce que la matière polymère est un polyuréthane ou un fluorosilicium. 4 Glissière selon l'une des revendicatior 51 à 3, caractérisée en ce que les garnitures internes sont fabriquées  1 Slide that can be fixed to a fixed or mobile member and comprising internal and external annular trimmings; from each other by a shear rupture mounting material. 2 slide according to claim 1, characterized in that the shear rupture mounting material comprises a polymeric material. I 3 slide according to claim 2, characterized in that the polymeric material is a polyurethane or a fluorosilicon. 4 Slide according to one of claims 51 to 3, characterized in that the internal linings are produced à partir d'un métal.from a metal. 5 Glissière selon la revendication 4, caractérisée  5 slide according to claim 4, characterized en ce que le métal est un métal auto-lubrifiant.  in that the metal is a self-lubricating metal. 6 Glissière selon la revendication 5, caractérisée  6 slide according to claim 5, characterized en ce que le métal auto-lubrifiant est du bronze au phosphore.  in that the self-lubricating metal is phosphor bronze. 7 Glissière selon l'une des revendications 1 à 6,  7 slide according to one of claims 1 to 6, caractérisée en ce que les garnitures externes sont fabriquées  characterized in that the external fittings are produced à partir d'une matière auto-lubrifiante.  from a self-lubricating material. 8 Glissière pouvant être utilisée dans un aéronef comprenant un siège et un ou plusieurs organes de maintien pour le siège, le siège pouvant venir en contact avec les organes de maintien en coulissant sur une glissière réalisée  8 Slide which can be used in an aircraft comprising a seat and one or more holding members for the seat, the seat being able to come into contact with the holding members by sliding on a slide made selon l'une des revendications 1 à 7.  according to one of claims 1 to 7.
FR8213330A 1981-07-31 1982-07-30 SLIDE FOR ADJUSTING SEATS, ESPECIALLY AIRCRAFT SEATS Withdrawn FR2510512A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8123531 1981-07-31

Publications (1)

Publication Number Publication Date
FR2510512A1 true FR2510512A1 (en) 1983-02-04

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FR8213330A Withdrawn FR2510512A1 (en) 1981-07-31 1982-07-30 SLIDE FOR ADJUSTING SEATS, ESPECIALLY AIRCRAFT SEATS

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FR (1) FR2510512A1 (en)
GB (1) GB2105014A (en)
IT (1) IT1148394B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679573A2 (en) * 1994-04-26 1995-11-02 Israel Aircraft Industries, Ltd. Vehicle seat
WO2013153201A1 (en) * 2012-04-13 2013-10-17 Rheinmetall Man Military Vehicles Gmbh Mine-safe seat device
ITBG20130024A1 (en) * 2013-08-29 2015-03-01 Marco Boncompagni ANTI-SHOCK PLATFORM FOR SEATS OF PASSENGERS OF MEANS OF TRANSPORT

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632406A (en) * 1981-01-15 1986-12-30 Avaa International Corp. Apparatus in which an annular ring is carried within a groove about one member for slidably engaging the cylindrical surface of another member
RU2611326C1 (en) * 2016-03-10 2017-02-21 Открытое акционерное общество "Научно-производственное предприятие "Звезда" имени академика Г.И. Северина" Energy-absorbing seat for aircraft

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459063A (en) * 1966-09-03 1969-08-05 Toyota Motor Co Ltd Collapsible steering column assembly
FR2374554A1 (en) * 1976-12-20 1978-07-13 Nadella COLLAPSABLE TRANSMISSION
FR2418359A1 (en) * 1978-02-27 1979-09-21 Bertea Corp AIRCRAFT RUDDER ELEMENTS ACTION DEVICE WITH A FRANGIBLE TRIM
US4211151A (en) * 1977-05-26 1980-07-08 United Technologies Corporation Jam proof piston

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459063A (en) * 1966-09-03 1969-08-05 Toyota Motor Co Ltd Collapsible steering column assembly
FR2374554A1 (en) * 1976-12-20 1978-07-13 Nadella COLLAPSABLE TRANSMISSION
US4211151A (en) * 1977-05-26 1980-07-08 United Technologies Corporation Jam proof piston
FR2418359A1 (en) * 1978-02-27 1979-09-21 Bertea Corp AIRCRAFT RUDDER ELEMENTS ACTION DEVICE WITH A FRANGIBLE TRIM

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679573A2 (en) * 1994-04-26 1995-11-02 Israel Aircraft Industries, Ltd. Vehicle seat
EP0679573A3 (en) * 1994-04-26 1995-12-27 Israel Aircraft Ind Ltd Vehicle seat.
US5676336A (en) * 1994-04-26 1997-10-14 Israel Aircraft Industries Ltd. Vehicle seat
WO2013153201A1 (en) * 2012-04-13 2013-10-17 Rheinmetall Man Military Vehicles Gmbh Mine-safe seat device
ITBG20130024A1 (en) * 2013-08-29 2015-03-01 Marco Boncompagni ANTI-SHOCK PLATFORM FOR SEATS OF PASSENGERS OF MEANS OF TRANSPORT

Also Published As

Publication number Publication date
GB2105014A (en) 1983-03-16
IT8248890A0 (en) 1982-07-27
IT1148394B (en) 1986-12-03

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