WO2024251734A1 - Panel, in particular for a furniture element, in particular a seat unit - Google Patents

Panel, in particular for a furniture element, in particular a seat unit Download PDF

Info

Publication number
WO2024251734A1
WO2024251734A1 PCT/EP2024/065337 EP2024065337W WO2024251734A1 WO 2024251734 A1 WO2024251734 A1 WO 2024251734A1 EP 2024065337 W EP2024065337 W EP 2024065337W WO 2024251734 A1 WO2024251734 A1 WO 2024251734A1
Authority
WO
WIPO (PCT)
Prior art keywords
main panel
panel
furniture element
element according
furniture
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.)
Ceased
Application number
PCT/EP2024/065337
Other languages
French (fr)
Inventor
Gérald COTTA
Laura OLIVAS
Rachel James
Shamini THANAPALASINGAM
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.)
Safran Seats SA
Original Assignee
Safran Seats SA
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 Safran Seats SA filed Critical Safran Seats SA
Priority to EP24735512.6A priority Critical patent/EP4719900A1/en
Publication of WO2024251734A1 publication Critical patent/WO2024251734A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B64D11/0602—Seat modules, i.e. seat systems including furniture separate from the seat itself
    • 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
    • B64D11/0606—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with privacy shells, screens, separators or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2479/00—Furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Definitions

  • TITLE PANEL, ESPECIALLY FOR A PIECE OF FURNITURE, IN PARTICULAR A SEATING UNIT
  • the present invention relates to a panel, in particular for a furniture element, in particular a seat unit.
  • the invention finds a particularly advantageous, but not exclusive, application with structural panels forming furniture elements, in particular privacy shells and/or consoles belonging to seat units, in particular of the "business class” and "first class” type, of an aircraft cabin.
  • a seat unit comprises at least one seat associated with a privacy shell.
  • the privacy shell extends at least partly around the seat, so as to delimit an at least partially enclosed private space around the passenger.
  • the privacy shell is conventionally formed by thermoformed plastic panels or "sandwich" type composite panels, i.e. panels made up of a stack of layers of different materials.
  • Such a type of material has the disadvantage of having a significant mass, which deteriorates the performance of the aircraft in terms of fuel consumption and emission of polluting particles. There is therefore a need to reduce the weight of the furniture elements of the seating units without excessively modifying the manufacturing methods of this type of furniture elements.
  • the invention aims to effectively remedy the aforementioned drawbacks by proposing a piece of furniture, in particular for an aircraft seat unit, comprising at least one main panel, the main panel being made at least from a felt-based material comprising an agglomeration of fibers. non-woven, said fibers being capable of agglomerating under the effect of heat due to their intrinsic property or the addition of a binder.
  • the invention thus configured contributes to the optimization of performance by reducing the overall mass of the aircraft, thereby reducing fuel consumption leading to a reduction in emissions of polluting particles (CO, CO2, NOx, etc.).
  • the felt-based material is shaped by industrial processes of the thermocompression or thermoforming type.
  • the constituent material of the main panel comprises natural fibers made from a material chosen from hemp, linen, wool or bamboo.
  • the constituent material of the main panel comprises mineral fibers and/or fibers made from an aramid material.
  • the constituent material of the main panel comprises fibers made from a plastic material chosen from: polyamide, polyethylene, polyurethane, polyetherimide, or polyethylene terephthalate.
  • the constituent material of the main panel comprises at least one binder, in particular a resin.
  • said furniture element comprises an additional panel fixed on one face of the main panel.
  • the additional panel is made from felt
  • the main panel comprising alternating hollows and flat areas so as to present a wavy shape
  • the additional panel comprising an alternation of hollows and flats so as to present a wavy shape
  • the main panel and the additional panel being arranged back to back in such a way that the flats of the main panel are in contact with the flats of the additional panel and that the hollows of the main panel and the additional panel arranged at a distance from each other delimit cells so as to stiffen the assembly of two panels.
  • said furniture element comprises a reinforcing element, in particular having a rigidity greater than a rigidity of the main panel, fixed on one face of the main panel.
  • the reinforcing element constitutes a connecting interface and/or a contact interface between the main panel and another component of the furniture element.
  • the furniture element comprises a comfort element, in particular made of a flexible material, arranged on one face of the main panel.
  • the main panel comprises a deformed portion extending in projection relative to a face of the main panel, in particular to form an armrest.
  • the main panel comprises at least one hinge constituted by a zone of mechanical weakness, in particular comprising at least one groove.
  • the zone of mechanical weakness is produced by local removal of material in a thickness of the main panel and/or at constant thickness by local deformation of the main panel.
  • the main panel comprises a gripping zone, in particular constituted by an end portion of the main panel, in particular an end portion of the main panel at least partly folded.
  • the main panel comprises a closing device.
  • the closing device comprises an opening made in the main panel, capable of cooperating with a blocking element, in particular having at least in part a trapezoidal shape, a dovetail shape and/or a ball shape.
  • the furniture element is chosen from a console, a shell, a footrest and/or a door.
  • the invention also relates to an aircraft seat unit comprising a furniture element as previously defined.
  • Figure 1 is a perspective view of a seating unit comprising at least one furniture element having a structural panel according to the invention
  • FIG. 2 is a perspective view of a footrest disposed within a seat unit having a panel according to the invention
  • Figure 3 is a perspective view of a trim piece of the seat unit of Figure 1;
  • Figure 4a is a side view of the panel according to a first embodiment of the invention.
  • Figure 4b is a side view of the panel according to a second embodiment of the invention.
  • Figure 5 is a side view of the panel according to a third embodiment of the invention.
  • Figure 6 is a side view of the panel according to a fourth embodiment of the invention.
  • Figure 7 is a side view of a panel according to a fifth embodiment of the invention.
  • Figure 8 is a perspective view of a first embodiment of a door according to the invention.
  • FIG. 9a [Fig. 9b] [Fig. 9c] Figures 9a, 9b, and 9c are front views of the door of Figure 8 according to different embodiments;
  • FIG. 10a [Fig. 10b] Figures 10a and 10b show different groove shapes along a section plane A-A of Figures 9a-9c;
  • Figure 11 is a perspective view of a second embodiment of a door according to the invention.
  • Figure 12 is a detailed perspective view of a closing device according to the invention.
  • FIG. 13a [Fig. 13b] [Fig. 13c] Figures 13a, 13b, and 13c are detailed views of different forms of a locking element of the closing device of Figure 12;
  • FIG. 14a [Fig. 14b] [Fig. 14c] [Fig. 14d] [Fig. 14e]
  • Figures 14a, 14b, 14c, 14d and 14e are schematic representations illustrating different embodiments of a door provided with a closing device according to the invention.
  • Figure 1 is a perspective view of a seating unit 10 comprising at least one furniture element having a main panel 24, in particular a structural panel 24, according to the invention.
  • FIG. 1 shows the seat unit 10 comprising a seat 12 associated with a console 13 extending along one side of the seat 12. Furthermore, a shell 14, also called a privacy shell, extends at least partly around the seat 12 so as to delimit an at least partially enclosed space around the passenger. Such a configuration makes it possible to guarantee the privacy of the passenger seated on the seat 12.
  • the shell 14 constitutes an example of a piece of furniture within the meaning of the invention.
  • the console 13 comprises a housing 19 in which is arranged a footrest 20, also called an ottoman, on which a rear passenger can place his feet.
  • the seat unit 10 may comprise a door 21.
  • the door 21 is mounted to move in translation relative to the shell 14, by means of a translational movement mechanism, for example taking the form of a slide or a carriage capable of moving along a rail.
  • the door 21 is arranged on the side of a circulation corridor of an aircraft cabin in which the seat unit 10 is arranged.
  • the door 21 may be a door of the seat unit 10 providing access to the circulation corridor of the aircraft cabin or a door of a piece of furniture, such as a cupboard, located inside the aircraft cabin.
  • the door 21 In the closed position, the door 21 allows the passenger to isolate himself from the circulation corridor of the aircraft cabin. In the open position, the door 21 allows the passenger to access the circulation corridor of the aircraft cabin.
  • the furniture element comprises the main panel 24.
  • the main panel 24 can be made of a material with felt base, formed by an agglomeration of fibers.
  • the fibers are able to agglomerate under the effect of heat due to their intrinsic property or the addition of a binder.
  • the main panel 24 may be made of a nonwoven material made from natural and/or synthetic fibers. More specifically, the main panel 24 may be obtained by a process of matting and compacting the fibers using heat, pressure and humidity. The main panel 24 is therefore free of weft or warp thread.
  • the furniture element may take the form of the shell 14, the footrest 20, the door 21, a shelf, a storage door and/or any other furniture element suitable for the application.
  • the furniture element may take the form of a covering element covering the shell 14 and/or a false floor, such as a lower part of the footrest 20.
  • the main panel 24 may constitute a structural member of the furniture element. Thus, the main panel 24 may be able to support the loads and contribute to the overall strength and rigidity of the furniture element.
  • the main panel 24 may have a small thickness relative to a length and/or a width of the main panel 24. Consequently, it is possible to consider that the main panel 24 extends essentially at least partly in a plane.
  • the main panel 24 has an internal face 24.1 and an external face 24.2, opposite the internal face 24.1.
  • the internal face 24.1 is, for example, turned towards the seat 12 and the external face 24.2 is turned towards a circulation corridor of the aircraft cabin.
  • the main panel 24 is preferably thermocompressed or thermoformed, that is to say it is preheated before being shaped inside a mold.
  • the main panel 24 may comprise natural fibers, such as, for example, hemp, linen, wool, or bamboo fibers and/or any other natural material suitable for the application.
  • the main panel 24 may be made from a process not requiring a specific binder, the main panel 24 may include a binder providing a bond between the natural fibers.
  • the binder is, for example, an acrylic or phenolic resin.
  • a mass rate of the binder may be between 5% and 40%, preferably between 20% and 25%, of the total mass of the main panel 24.
  • the main panel 24 may comprise mineral fibers, such as glass fibers and/or fibers made of an aramid material, in particular a para-aramid or meta-aramid material.
  • the glass fibers and/or aramid material may be used alone or in combination with the other types of fibers listed in the present description.
  • the main panel 24 may also comprise fibers made of a plastic material.
  • the plastic material may be a thermoplastic or thermosetting material.
  • the fibers are made of a material chosen from: polyamide, also designated by the acronym "PA”, polyethylene also designated by the acronym “PE”, polyurethane also designated by the acronym “PU”, polyetherimide, also designated by the acronym “PEI”, or polyethylene terephthalate, also designated by the acronym "PET”. It is possible to use a material composed entirely of fibers made of a aforementioned plastic material.
  • the plastic fibers of different types can be mixed with each other and/or with natural fibres and/or mineral fibres and/or fibres made from an aramid material.
  • the main panel 24 may comprise a binder providing a bond between the fibers.
  • a binder providing a bond between the fibers.
  • the main panel 24 may comprise a mixture of fibers made of a plastic material and natural fibers. Such a mixture may be made so as to optimize the thermoformability of the main panel 24, if necessary.
  • the main panel 24 comprises carbon fibers, optionally combined with a resin.
  • the carbon fibers may be flame retardant.
  • the resin may be a thermoplastic or thermosetting material.
  • a mass rate of the resin may be between 5% and 40%, preferably between 20% and 25%, of the total mass of the main panel 24.
  • Such carbon fibers can exhibit fire-resistant properties and have high thermal stability, not being easily consumed. When such carbon fibers are exposed to high temperatures, they decompose without flame and form a carbon layer that acts as a thermal insulator, thereby slowing down a spread of fire.
  • Such carbon fibers allow the manufacture of a main panel 24 having structural properties, lightness and thermal resistance.
  • the door 21 comprises the main panel 24 made of a felt-based material.
  • the main panel 24 may comprise a portion 27 extending in projection relative to the main panel 24, in particular the internal face 24.1
  • the portion 27 constitutes a projecting deformation capable of constituting, for example, an armrest for the passenger seated on the seat 12.
  • Figure 2 is a perspective view of the footrest 20 disposed inside the seat unit 10 having the main panel 24 according to the invention.
  • a wall 25 of the housing 19 comprises the main panel 24 made of a felt-based material.
  • Figure 3 is a perspective view of a trim piece of the seat unit 10 according to the invention.
  • the shell 14 comprises a covering part constituted by the main panel 24 made of a felt-based material.
  • Figure 4a is a side view of the main panel 24 according to a first embodiment of the invention.
  • an additional panel 28 is fixed on one face of the main panel 24.
  • the additional panel 28 is fixed on the internal face 24.1 of the main panel 24.
  • the additional panel 28 is not visible from the outside of the seat unit 10, that is to say in particular not visible from the circulation corridor of the aircraft cabin.
  • the additional panel 28 may be made of a felt-based material.
  • the felt-based material may be a material identical to or different from the material of the main panel 24.
  • the additional panel 28 may have a wavy shape so as to stiffen the main panel 24.
  • the additional panel 28 has an alternation of hollows 30 and flats 29.
  • the hollows 30 come into contact with a face of the main panel 24 while the flats 29 are projecting and therefore at a distance from the face of the main panel 24.
  • the additional panel 28 covers at least 80%, preferably all of the area of the face of the main panel 24.
  • the main panel 24 comprises an alternation of hollows 30 and flats 29 so as to have a wavy shape.
  • the additional panel 28 also made from felt comprises an alternation of hollows 30 and flats 29 so as to have a wavy shape.
  • the main panel 24 and the additional panel 28 are arranged in such a way that the flats 29 of the main panel 24 are in contact with the flats 29 of the additional panel 28.
  • Figure 5 is a side view of the main panel 24 according to a second embodiment of the invention.
  • a reinforcing element 33 is fixed to one face of the main panel 24. More specifically, the reinforcing element 33 is located in specific areas of the main panel 24 in order to provide localized reinforcement of such specific areas.
  • the reinforcing element 33 is made of a rigid material, such as plastic and/or a composite material.
  • the reinforcing element reinforcement 33 has a stiffness greater than a stiffness of the main panel 24.
  • the local reinforcement element 33 is fixed on the internal face 24.1 of the main panel 24.
  • the local reinforcement element 33 is not visible from the outside of the seat unit 10.
  • the local reinforcing element 33 may consist of a panel of small dimensions compared to the dimensions of the main panel 24.
  • the local reinforcing element 33 may be a flat panel, as shown on the left in FIG. 5, or a corrugated panel, as shown on the right in FIG. 5.
  • the local reinforcement element 33 may be a panel following a curvature of the main panel 24.
  • the local reinforcing element 33 may, for example, be arranged behind the deformed portion 27 of the main panel 24 forming an armrest.
  • Figure 6 is a side view of the main panel 24 according to a third embodiment of the invention.
  • the reinforcing element 33 constitutes a connecting interface and/or a contact interface between the main panel 24 and another piece of furniture and/or with a component of such a piece of furniture.
  • the reinforcing element 33 has at least: a connecting part 34.1, intended to be superimposed with the main panel 24, and a junction part 34.2, intended not to be superimposed on the main panel 24.
  • the connecting portion 34.1 may be fixed to a portion of the main panel 24 by gluing, riveting and/or any other means suitable for the application.
  • the joining part 34.2 may comprise means of fixing with the other furniture element and/or with the component of such a furniture element, such as, for example, openings for passage of a fixing member or an integration of fixing means by snap-fastening, screwing, riveting and/or other.
  • the reinforcing element 33 can also take the form of a reinforcing tube made of metal, in particular aluminum and/or a composite material.
  • Figure 7 is a side view of the main panel 24 according to a fourth embodiment of the invention.
  • a comfort element 37 is arranged on the main panel 24.
  • the comfort element 37 may be made of a flexible material, such as, for example, foam, a rubber material and/or an elastomer material.
  • the comfort element 37 may also comprise several layers of different materials (among those mentioned above) and not just a single material.
  • One of the layers of the complex of materials of the comfort element 37 may be high-density foam which may or may not be perforated.
  • the comfort element 37 is capable of being arranged on a face of the main panel 24 facing the passenger, in particular on the internal face 24.1 of the main panel 24.
  • the comfort element 37 can in particular be arranged on a lateral face of the shell 14, so that the passenger can rest part of his body on the comfort element 37.
  • the comfort element 37 is capable of being arranged on a face of the main panel 24 facing a circulation corridor of the aircraft cabin.
  • the comfort element 37 may have a function of covering all or part of the main panel 24.
  • the comfort element 37 is a finishing layer fixed to all or part of the main panel 24 by gluing and/or any other means adapted to the application.
  • the comfort element 37 as a finishing layer can be removably fixed to the main panel 24. Such an arrangement makes it possible to ensure easy changing of the finishing layer as required.
  • the comfort element 37 may be of the fabric, suede, leather, “imitation” leather type and/or any other material making it possible to provide an appearance finish to the main panel 24.
  • Figure 8 is a perspective view of a first embodiment of the door 21 according to the invention.
  • the door 21 comprises at least one main panel 24 provided with a hinge 31.
  • the hinge 31 is constituted by a zone of mechanical weakness 35, capable of allowing localized folding of the main panel 24.
  • a passenger can, by applying a force, in particular a force perpendicular to the plane of the door 21, move the sliding door 21 in rotation around the hinge 31 so as to free access to the circulation corridor of the aircraft cabin.
  • the mechanical weakness zone 35 extends along at least a portion of the height of the door 21 measured along a vertical direction. Preferably, the mechanical weakness zone 35 extends along the entire height of the door 21.
  • the zone of mechanical weakness 35 may be a groove 36, made on a part of the thickness of the main panel 24.
  • Figures 9a, 9b, and 9c are front views of the door 21 of Figure 8 according to different embodiments.
  • the groove 36 may be continuous.
  • the groove 36 may be discontinuous.
  • the mechanical weakness zone 35 may comprise a plurality of grooves 36, in particular arranged parallel to each other. Such an arrangement makes it possible to obtain a distribution of the forces when opening the door 21.
  • Figures 10a and 10b show different shapes of the groove 26 along a section plane A-A of Figures 9a-9c.
  • the groove 36 may have a section in the shape of a “V”, a “U” or a “C rotated 90°”.
  • the groove 36 having a “V” and “U” shape may also have rounded corners.
  • the groove 36 is produced by local removal of material in a thickness of the main panel 24.
  • the main panel 24 has a reduced thickness at the location of the groove 36 relative to the overall thickness of the main panel 24.
  • the groove 36 is made with a constant thickness relative to the rest of the main panel 24.
  • the main panel 24 has the same thickness at the location of the groove 36 as in the rest of the main panel 24.
  • the groove 36 can be obtained by a local deformation of the main panel 24.
  • FIG 11 is a perspective view of a second embodiment of the door 21 provided with a closing device 40 according to the invention, presented in a detailed perspective view in Figure 12.
  • the door 21 comprises at least one main panel 24 which may comprise a gripping zone 38, forming for example a handle, intended for a passenger or a flight attendant.
  • the gripping zone 38 is constituted, for example, by an end portion of the main panel 24.
  • the gripping zone 38 of the main panel 24 may in particular have a reduced width compared to the rest of the main panel 24.
  • the gripping area 38 may be bent at least partially such that at least a portion of the gripping area 38 forms a non-zero angle relative to the remainder of the main panel 24.
  • the gripping area 38 may extend projecting from an edge of the main panel 24.
  • a closing device 40 is provided in order to ensure that the door 21 is kept in the closed state.
  • the closing device 40 may comprise an opening 41, in particular made in the main panel 24, in particular near or inside the gripping zone 38.
  • the opening 41 is a through opening.
  • the opening 41 is intended to cooperate with a blocking element 43.
  • the blocking element 43 is capable of being fixed to a fixed element 45 of the aircraft cabin, for example a wall of the aircraft cabin or a wall of a piece of furniture, such as the seat unit 10.
  • Figures 13a, 13b, and 13c are detailed views of different shapes of the blocking element 43 of the closing device 40 according to the invention.
  • the blocking element 43 comprises a stud 44.
  • the stud 44 may have a trapezoidal shape, in particular with a small side located opposite a face of the fixed element 45 on which the blocking element 43 is fixed.
  • the pad 44 may have a dovetail shape.
  • the pad 44 may have a ball shape.
  • the pad 44 may have any other shape suitable for the application.
  • the blocking element 43 is inserted inside the corresponding opening 41 of the closing device 40.
  • the passenger and/or the flight attendant can grasp the gripping area 38 and pull so as to disengage the blocking element 43 from the opening 41.
  • the door 21 may comprise a hinge 31 as in the previous embodiment, so as to fold the door 21 around the hinge in order to open the door 21.
  • Figures 14a, 14b, 14c, 14d and 14e are schematic representations illustrating different embodiments of the door 21 provided with the closing device 40 according to the invention.
  • the door 21 comprises only at least one main panel 24.
  • the door 21 comprises at least one main panel 24 and a reinforcement at the hinge 31.
  • the reinforcement at the hinge 31 may consist of the additional panel 28 and/or the reinforcement element 33, as described previously.
  • the door 21 comprises at least one main panel 24, one additional panel 28 and/or one reinforcing element 33.
  • the additional panel 28 may be fixed to the internal face 24.1 of the main panel 24.
  • the reinforcing element 33 may be fixed to the internal face 24.1 of the main panel 24.
  • the door 21 comprises at least one main panel 24, an additional panel 28 and/or a reinforcing element 33.
  • the additional panel 28 can be located at the level of the closing device 40.
  • the reinforcing element 33 can be located at the level of the closing device 40.
  • the door 21 comprises at least one main panel 24, an additional panel 28 and/or a reinforcing element 33.
  • the additional panel 28 may be located at the level of the closing device 40 and surrounding the gripping zone 38 in order to stiffen it locally.
  • the reinforcing element 33 may be located at the level of the closing device 40 and surrounding the gripping zone 38 in order to stiffen it locally.
  • the invention also relates to a seat unit comprising a furniture element according to the invention.
  • the present invention has been described in relation to a seat unit 10. However, it finds application with any piece of furniture comprising at least one main panel made at least from a felt-based material.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Textile Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The present invention relates to a furniture element, in particular for an aircraft seat unit (10), comprising at least one main panel (24) at least made of a felt-based material comprising an agglomeration of non-woven fibres.

Description

DESCRIPTION DESCRIPTION

TITRE : PANNEAU, NOTAMMENT POUR UN ÉLÉMENT DE MOBILIER, EN PARTICULIER D'UNE UNITÉ DE SIÈGETITLE: PANEL, ESPECIALLY FOR A PIECE OF FURNITURE, IN PARTICULAR A SEATING UNIT

[0001] La présente invention porte sur un panneau, notamment pour un élément de mobilier, en particulier d'une unité de siège. L'invention trouve une application particulièrement avantageuse, mais non exclusive, avec les panneaux structurels formant des éléments de mobiliers, notamment des coques d'intimité et/ou des consoles appartenant à des unités de sièges, en particulier de type "classe affaires" et "première classe", d'une cabine d'avion. [0001] The present invention relates to a panel, in particular for a furniture element, in particular a seat unit. The invention finds a particularly advantageous, but not exclusive, application with structural panels forming furniture elements, in particular privacy shells and/or consoles belonging to seat units, in particular of the "business class" and "first class" type, of an aircraft cabin.

[0002] De façon connue en soi, une unité de siège comporte au moins un siège associé à une coque d'intimité. La coque d'intimité s'étend au moins en partie autour du siège, de manière à délimiter un espace privatif au moins partiellement clos autour du passager. Une telle configuration permet de garantir l'intimité du passager installé sur le siège. [0002] In a manner known per se, a seat unit comprises at least one seat associated with a privacy shell. The privacy shell extends at least partly around the seat, so as to delimit an at least partially enclosed private space around the passenger. Such a configuration makes it possible to guarantee the privacy of the passenger seated on the seat.

[0003] La coque d'intimité est classiquement formée par des panneaux plastiques thermoformés ou des panneaux composites de type "sandwich", c’est- à-dire des panneaux constitués par un empilement de couches de différents matériaux. [0003] The privacy shell is conventionally formed by thermoformed plastic panels or "sandwich" type composite panels, i.e. panels made up of a stack of layers of different materials.

[0004] Un tel type de matériaux présente l'inconvénient d'avoir une masse importante détériorant les performances de l'avion en termes de consommation de carburant et d'émission de particules polluantes. Il existe donc le besoin de réduire le poids des éléments de mobilier des unités de sièges sans modifier de façon excessive les méthodes de fabrication de ce type d’éléments de mobilier. [0004] Such a type of material has the disadvantage of having a significant mass, which deteriorates the performance of the aircraft in terms of fuel consumption and emission of polluting particles. There is therefore a need to reduce the weight of the furniture elements of the seating units without excessively modifying the manufacturing methods of this type of furniture elements.

[0005] L'invention vise à remédier efficacement aux inconvénients précités en proposant un élément de mobilier, notamment pour une unité de siège d'avion, comportant au moins un panneau principal, le panneau principal étant constitué au moins dans un matériau à base de feutre comportant une agglomération de fibres non tissées, lesdites fibres étant aptes à s'agglomérer sous l'effet de la chaleur du fait de leur propriété intrinsèque ou de l'ajout d'un liant. [0005] The invention aims to effectively remedy the aforementioned drawbacks by proposing a piece of furniture, in particular for an aircraft seat unit, comprising at least one main panel, the main panel being made at least from a felt-based material comprising an agglomeration of fibers. non-woven, said fibers being capable of agglomerating under the effect of heat due to their intrinsic property or the addition of a binder.

[0006] L'invention ainsi configurée contribue à l'optimisation des performances par la baisse de la masse globale de l'avion, réduisant ainsi la consommation de carburant entraînant une réduction des émissions de particules polluantes (CO, CO2, NOx ... ). [0006] The invention thus configured contributes to the optimization of performance by reducing the overall mass of the aircraft, thereby reducing fuel consumption leading to a reduction in emissions of polluting particles (CO, CO2, NOx, etc.).

[0007] Selon une réalisation de l'invention, le matériau à base de feutre est mis en forme par des processus industriels du type thermocompression ou thermoformage. [0007] According to one embodiment of the invention, the felt-based material is shaped by industrial processes of the thermocompression or thermoforming type.

[0008] Selon une réalisation de l'invention, le matériau constitutif du panneau principal comporte des fibres naturelles réalisées dans un matériau choisi parmi du chanvre, du lin, de la laine ou du bambou. [0008] According to one embodiment of the invention, the constituent material of the main panel comprises natural fibers made from a material chosen from hemp, linen, wool or bamboo.

[0009] Selon une réalisation de l'invention, le matériau constitutif du panneau principal comporte des fibres minérales et/ou des fibres réalisées dans un matériau aramide. [0009] According to one embodiment of the invention, the constituent material of the main panel comprises mineral fibers and/or fibers made from an aramid material.

[0010] Selon une réalisation de l'invention, le matériau constitutif du panneau principal comporte des fibres réalisées dans un matériau plastique choisi parmi: le polyamide, le polyéthylène, le polyuréthane, le polyétherimide, ou le polytéréphtalate d'éthylène. [0010] According to one embodiment of the invention, the constituent material of the main panel comprises fibers made from a plastic material chosen from: polyamide, polyethylene, polyurethane, polyetherimide, or polyethylene terephthalate.

[0011] Selon une réalisation de l'invention, le matériau constitutif du panneau principal comporte au moins un liant, notamment une résine. [0011] According to one embodiment of the invention, the constituent material of the main panel comprises at least one binder, in particular a resin.

[0012] Selon une réalisation de l'invention, ledit élément de mobilier comporte un panneau additionnel fixé sur une face du panneau principal. [0012] According to one embodiment of the invention, said furniture element comprises an additional panel fixed on one face of the main panel.

[0013] Selon une réalisation de l'invention, le panneau additionnel est réalisé à base de feutre, [0013] According to one embodiment of the invention, the additional panel is made from felt,

- le panneau principal comportant une alternance de creux et de plats de façon à présenter une forme ondulée, - le panneau additionnel comportant une alternance de creux et de plats de façon à présenter une forme ondulée, - the main panel comprising alternating hollows and flat areas so as to present a wavy shape, - the additional panel comprising an alternation of hollows and flats so as to present a wavy shape,

- le panneau principal et le panneau additionnel étant disposés dos à dos de telle façon que les plats du panneau principal sont en contact avec les plats du panneau additionnel et que les creux du panneau principal et du panneau additionnel disposés à distance les uns des autres délimitent des alvéoles de façon à rigidifier l'ensemble de deux panneaux. - the main panel and the additional panel being arranged back to back in such a way that the flats of the main panel are in contact with the flats of the additional panel and that the hollows of the main panel and the additional panel arranged at a distance from each other delimit cells so as to stiffen the assembly of two panels.

[0014] Selon une réalisation de l'invention, ledit élément de mobilier comporte un élément de renforcement, notamment présentant une rigidité supérieure à une rigidité du panneau principal, fixé sur une face du panneau principal. [0014] According to one embodiment of the invention, said furniture element comprises a reinforcing element, in particular having a rigidity greater than a rigidity of the main panel, fixed on one face of the main panel.

[0015] Selon une réalisation de l'invention, l'élément de renforcement constitue une interface de liaison et/ou une interface de contact entre le panneau principal et un autre composant de l’élément de mobilier. [0015] According to one embodiment of the invention, the reinforcing element constitutes a connecting interface and/or a contact interface between the main panel and another component of the furniture element.

[0016] Selon une réalisation de l'invention, l'élément de mobilier comporte un élément de confort, notamment réalisé dans un matériau souple, disposé sur une face du panneau principal. [0016] According to one embodiment of the invention, the furniture element comprises a comfort element, in particular made of a flexible material, arranged on one face of the main panel.

[0017] Selon une réalisation de l'invention, le panneau principal comporte une portion déformée s'étendant en saillie par rapport à une face du panneau principal, notamment pour former un accoudoir. [0017] According to one embodiment of the invention, the main panel comprises a deformed portion extending in projection relative to a face of the main panel, in particular to form an armrest.

[0018] Selon une réalisation de l'invention, le panneau principal comporte au moins une charnière constituée par une zone de faiblesse mécanique, notamment comportant au moins une gorge. [0018] According to one embodiment of the invention, the main panel comprises at least one hinge constituted by a zone of mechanical weakness, in particular comprising at least one groove.

[0019] Selon une réalisation de l'invention, la zone de faiblesse mécanique est réalisée par retrait local de matière dans une épaisseur du panneau principal et/ou à épaisseur constante par déformation locale du panneau principal. [0019] According to one embodiment of the invention, the zone of mechanical weakness is produced by local removal of material in a thickness of the main panel and/or at constant thickness by local deformation of the main panel.

[0020] Selon une réalisation de l'invention, le panneau principal comporte une zone de préhension, notamment constituée par une portion d'extrémité du panneau principal, en particulier une portion d'extrémité du panneau principal au moins en partie repliée. [0021] Selon une réalisation de l'invention, le panneau principal comporte un dispositif de fermeture. [0020] According to one embodiment of the invention, the main panel comprises a gripping zone, in particular constituted by an end portion of the main panel, in particular an end portion of the main panel at least partly folded. [0021] According to one embodiment of the invention, the main panel comprises a closing device.

[0022] Selon une réalisation de l'invention, le dispositif de fermeture comporte une ouverture réalisée dans le panneau principal, apte à coopérer avec un élément de blocage, notamment ayant au moins en partie une forme trapézoïdale, une forme de queue d'aronde et/ou une forme de boule. [0022] According to one embodiment of the invention, the closing device comprises an opening made in the main panel, capable of cooperating with a blocking element, in particular having at least in part a trapezoidal shape, a dovetail shape and/or a ball shape.

[0023] Selon une réalisation de l'invention, l'élément de mobilier est choisi parmi une console, une coque, un repose-pieds et/ou une porte. [0023] According to one embodiment of the invention, the furniture element is chosen from a console, a shell, a footrest and/or a door.

[0024] L'invention a également pour objet une unité de siège d'avion comportant un élément de mobilier tel que précédemment défini. [0024] The invention also relates to an aircraft seat unit comprising a furniture element as previously defined.

[0025] La présente invention sera mieux comprise et d’autres caractéristiques et avantages apparaîtront encore à la lecture de la description détaillée qui suit comprenant des modes de réalisation donnés à titre illustratif en référence avec les figures annexées, présentées à titre d’exemples non limitatifs, qui pourront servir à compléter la compréhension de la présente invention et l’exposé de sa réalisation et, le cas échéant, contribuer à sa définition, sur lesquelles: [0025] The present invention will be better understood and other characteristics and advantages will become apparent upon reading the detailed description which follows, comprising embodiments given for illustrative purposes with reference to the appended figures, presented as non-limiting examples, which may serve to complete the understanding of the present invention and the description of its embodiment and, where appropriate, contribute to its definition, in which:

[0026] [Fig. 1] La figure 1 est une vue en perspective d'une unité de siège comportant au moins un élément de mobilier ayant un panneau structurel selon l'invention ; [0026] [Fig. 1] Figure 1 is a perspective view of a seating unit comprising at least one furniture element having a structural panel according to the invention;

[0027] [Fig. 2] La figure 2 est une vue en perspective d'un repose-pieds disposé à l'intérieur d'une unité de siège ayant un panneau selon l'invention ; [0027] [Fig. 2] Fig. 2 is a perspective view of a footrest disposed within a seat unit having a panel according to the invention;

[0028] [Fig. 3] La figure 3 est une vue en perspective d'une pièce d’habillage de l’unité de siège de la figure 1 ; [0028] [Fig. 3] Figure 3 is a perspective view of a trim piece of the seat unit of Figure 1;

[0029] [Fig. 4a] La figure 4a est une vue de côté du panneau selon un premier mode de réalisation de l'invention ; [0029] [Fig. 4a] Figure 4a is a side view of the panel according to a first embodiment of the invention;

[0030] [Fig. 4b] La figure 4b est une vue de côté du panneau selon un deuxième mode de réalisation de l'invention ; [0031] [Fig. 5] La figure 5 est une vue de côté du panneau selon un troisième mode de réalisation de l'invention ; [0030] [Fig. 4b] Figure 4b is a side view of the panel according to a second embodiment of the invention; [0031] [Fig. 5] Figure 5 is a side view of the panel according to a third embodiment of the invention;

[0032] [Fig. 6] La figure 6 est une vue de côté du panneau selon un quatrième mode de réalisation de l'invention ; [0032] [Fig. 6] Figure 6 is a side view of the panel according to a fourth embodiment of the invention;

[0033] [Fig. 7] La figure 7 est une vue de côté d'un panneau selon un cinquième mode de réalisation de l'invention ; [0033] [Fig. 7] Figure 7 is a side view of a panel according to a fifth embodiment of the invention;

[0034] [Fig. 8] La figure 8 est une vue en perspective d’un premier mode de réalisation d'une porte selon l'invention ; [0034] [Fig. 8] Figure 8 is a perspective view of a first embodiment of a door according to the invention;

[0035] [Fig. 9a] [Fig. 9b] [Fig. 9c] Les figures 9a, 9b, et 9c sont des vues de face de la porte de la figure 8 selon différents modes de réalisation ; [0035] [Fig. 9a] [Fig. 9b] [Fig. 9c] Figures 9a, 9b, and 9c are front views of the door of Figure 8 according to different embodiments;

[0036] [Fig. 10a] [Fig. 10b] Les figures 10a et 10b montrent différentes formes de gorge suivant un plan de coupe A-A des figures 9a-9c ; [0036] [Fig. 10a] [Fig. 10b] Figures 10a and 10b show different groove shapes along a section plane A-A of Figures 9a-9c;

[0037] [Fig. 11] La figure 11 est une vue en perspective d’un deuxième mode de réalisation d'une porte selon l'invention ; [0037] [Fig. 11] Figure 11 is a perspective view of a second embodiment of a door according to the invention;

[0038] [Fig. 12] La figure 12 est une vue en perspective détaillée d'un dispositif de fermeture selon l'invention; [0038] [Fig. 12] Figure 12 is a detailed perspective view of a closing device according to the invention;

[0039] [Fig. 13a] [Fig. 13b] [Fig. 13c] Les figures 13a, 13b, et 13c sont des vues de détail de différentes formes d'un élément de blocage du dispositif de fermeture de la figure 12 ; et [0039] [Fig. 13a] [Fig. 13b] [Fig. 13c] Figures 13a, 13b, and 13c are detailed views of different forms of a locking element of the closing device of Figure 12; and

[0040] [Fig. 14a] [Fig. 14b] [Fig. 14c] [Fig. 14d] [Fig. 14e] Les figures 14a, 14b, 14c, 14d et 14e sont des représentations schématiques illustrant différents modes de réalisation d'une porte munie d'un dispositif de fermeture selon l'invention. [0040] [Fig. 14a] [Fig. 14b] [Fig. 14c] [Fig. 14d] [Fig. 14e] Figures 14a, 14b, 14c, 14d and 14e are schematic representations illustrating different embodiments of a door provided with a closing device according to the invention.

[0041] Il est à noter que les éléments structurels et/ou fonctionnels communs aux différents modes de réalisation présentent les mêmes références. Ainsi, sauf mention contraire, de tels éléments disposent de propriétés structurelles, dimensionnelles et matérielles identiques. [0042] La figure 1 est une vue en perspective d'une unité de siège 10 comportant au moins un élément de mobilier ayant un panneau principal 24, notamment un panneau structurel 24, selon l'invention. [0041] It should be noted that the structural and/or functional elements common to the different embodiments have the same references. Thus, unless otherwise stated, such elements have identical structural, dimensional and material properties. [0042] Figure 1 is a perspective view of a seating unit 10 comprising at least one furniture element having a main panel 24, in particular a structural panel 24, according to the invention.

[0043] Plus particulièrement, la figure 1 montre l’unité de siège 10 comportant un siège 12 associé à une console 13 s'étendant suivant un côté du siège 12. En outre, une coque 14, également dénommée coque d'intimité, s'étend au moins en partie autour du siège 12 de manière à délimiter un espace au moins partiellement clos autour du passager. Une telle configuration permet de garantir l'intimité du passager assis sur le siège 12. [0043] More particularly, FIG. 1 shows the seat unit 10 comprising a seat 12 associated with a console 13 extending along one side of the seat 12. Furthermore, a shell 14, also called a privacy shell, extends at least partly around the seat 12 so as to delimit an at least partially enclosed space around the passenger. Such a configuration makes it possible to guarantee the privacy of the passenger seated on the seat 12.

[0044] La coque 14 constitue un exemple d’élément de mobilier au sens de l’invention. [0044] The shell 14 constitutes an example of a piece of furniture within the meaning of the invention.

[0045] La console 13 comporte un logement 19 dans lequel est disposé un repose-pieds 20, également dénommé ottoman, sur lequel un passager arrière peut poser ses pieds. [0045] The console 13 comprises a housing 19 in which is arranged a footrest 20, also called an ottoman, on which a rear passenger can place his feet.

[0046] L’unité de siège 10 peut comporter une porte 21. En particulier, la porte 21 est montée mobile en translation par rapport à la coque 14, au moyen d'un mécanisme de déplacement en translation, par exemple prenant la forme d'une glissière ou d'un chariot apte à se déplacer le long d'un rail. [0046] The seat unit 10 may comprise a door 21. In particular, the door 21 is mounted to move in translation relative to the shell 14, by means of a translational movement mechanism, for example taking the form of a slide or a carriage capable of moving along a rail.

[0047] La porte 21 est disposée du côté d'un couloir de circulation d’une cabine d'avion dans laquelle est agencé l’unité de siège 10. [0047] The door 21 is arranged on the side of a circulation corridor of an aircraft cabin in which the seat unit 10 is arranged.

[0048] La porte 21 peut être une porte de l’unité de siège 10 donnant accès au couloir de circulation de la cabine d'avion ou une porte d’un élément de mobilier, tel qu’un placard, situé à l'intérieur de la cabine d'avion. [0048] The door 21 may be a door of the seat unit 10 providing access to the circulation corridor of the aircraft cabin or a door of a piece of furniture, such as a cupboard, located inside the aircraft cabin.

[0049] En position fermée, la porte 21 permet au passager de s'isoler par rapport au couloir de circulation de la cabine d'avion. En position ouverte, la porte 21 permet au passager d'accéder au couloir de circulation de la cabine d'avion. [0049] In the closed position, the door 21 allows the passenger to isolate himself from the circulation corridor of the aircraft cabin. In the open position, the door 21 allows the passenger to access the circulation corridor of the aircraft cabin.

[0050] Selon l’invention, l’élément de mobilier comporte le panneau principal 24. En particulier, le panneau principal 24 peut être réalisé dans un matériau à base de feutre, formé par une agglomération de fibres. Les fibres sont aptes à s'agglomérer sous l'effet de la chaleur du fait de leur propriété intrinsèque ou de l'ajout d'un liant. [0050] According to the invention, the furniture element comprises the main panel 24. In particular, the main panel 24 can be made of a material with felt base, formed by an agglomeration of fibers. The fibers are able to agglomerate under the effect of heat due to their intrinsic property or the addition of a binder.

[0051] Le panneau principal 24 peut être réalisé dans un matériau non tissé fabriqué à partir de fibres naturelles et/ou synthétiques. Plus spécifiquement, le panneau principal 24 peut être obtenu par un procédé de matage et de compactage des fibres à l'aide de chaleur, de pression et d'humidité. Le panneau principal 24 est donc dépourvu de fil de trame ou de fil chaîne. [0051] The main panel 24 may be made of a nonwoven material made from natural and/or synthetic fibers. More specifically, the main panel 24 may be obtained by a process of matting and compacting the fibers using heat, pressure and humidity. The main panel 24 is therefore free of weft or warp thread.

[0052] L'élément de mobilier peut prendre la forme de la coque 14, du repose- pieds 20, de la porte 21 , d'une tablette, d'une porte de rangement et/ou de tout autre élément de mobilier adapté à l'application. [0052] The furniture element may take the form of the shell 14, the footrest 20, the door 21, a shelf, a storage door and/or any other furniture element suitable for the application.

[0053] De plus, l'élément de mobilier peut prendre la forme d’un élément d’habillage venant habiller la coque 14 et/ou un faux plancher, telle qu’une partie inférieure du repose-pieds 20 [0053] Furthermore, the furniture element may take the form of a covering element covering the shell 14 and/or a false floor, such as a lower part of the footrest 20.

[0054] Le panneau principal 24 peut constituer un organe structurel de l'élément de mobilier. Ainsi, le panneau principal 24 peut être apte à supporter les charges et de contribuer à la résistance et à la rigidité globale de l'élément de mobilier. [0054] The main panel 24 may constitute a structural member of the furniture element. Thus, the main panel 24 may be able to support the loads and contribute to the overall strength and rigidity of the furniture element.

[0055] Le panneau principal 24 peut présenter une faible épaisseur par rapport à une longueur et/ou une largeur du panneau principal 24. En conséquence, il est possible de considérer que le panneau principal 24 s'étend essentiellement au moins en partie dans un plan. [0055] The main panel 24 may have a small thickness relative to a length and/or a width of the main panel 24. Consequently, it is possible to consider that the main panel 24 extends essentially at least partly in a plane.

[0056] Comme cela est visible sur la figure 4a, le panneau principal 24 présente une face interne 24.1 et une face externe 24.2, opposée à la face interne 24.1. [0056] As can be seen in FIG. 4a, the main panel 24 has an internal face 24.1 and an external face 24.2, opposite the internal face 24.1.

[0057] Dans l’exemple de réalisation de la porte 21 , la face interne 24.1 est, par exemple, tournée vers le siège 12 et la face externe 24.2 est tournée vers un couloir de circulation de la cabine d'avion. [0058] Le panneau principal 24 est, de préférence, thermocomprimé ou thermoformé, c’est-à-dire qu'il est préalablement chauffé avant d’être mis en forme à l'intérieur d'un moule. [0057] In the exemplary embodiment of the door 21, the internal face 24.1 is, for example, turned towards the seat 12 and the external face 24.2 is turned towards a circulation corridor of the aircraft cabin. [0058] The main panel 24 is preferably thermocompressed or thermoformed, that is to say it is preheated before being shaped inside a mold.

[0059] Le panneau principal 24 peut comporter des fibres naturelles, telles que, par exemple, des fibres de chanvre, lin, laine, ou bambou et/ou tout autre matériau naturel adaptée à l'application. [0059] The main panel 24 may comprise natural fibers, such as, for example, hemp, linen, wool, or bamboo fibers and/or any other natural material suitable for the application.

[0060] Bien que le panneau principal 24 puisse être réalisé à partir d’un procédé ne nécessitant pas de liant spécifique, le panneau principal 24 peut comporter un liant assurant une liaison entre les fibres naturelles. Le liant est, par exemple, une résine acrylique ou phénolique. [0060] Although the main panel 24 may be made from a process not requiring a specific binder, the main panel 24 may include a binder providing a bond between the natural fibers. The binder is, for example, an acrylic or phenolic resin.

[0061] En particulier, un taux en masse du liant peut être compris entre 5% et 40%, de préférence entre 20% et 25%, de la masse totale du panneau principal 24. [0061] In particular, a mass rate of the binder may be between 5% and 40%, preferably between 20% and 25%, of the total mass of the main panel 24.

[0062] Suivant un autre mode de réalisation, le panneau principal 24 peut comporter des fibres minérales, telles que des fibres de verre et/ou des fibres réalisées dans un matériau aramide, notamment un matériau para-aramide ou meta-aramide. Les fibres de verre et/ou en matériau aramide peuvent être utilisées seules ou en combinaison avec les autres types de fibres listées dans la présente description. [0062] According to another embodiment, the main panel 24 may comprise mineral fibers, such as glass fibers and/or fibers made of an aramid material, in particular a para-aramid or meta-aramid material. The glass fibers and/or aramid material may be used alone or in combination with the other types of fibers listed in the present description.

[0063] Suivant un autre mode de réalisation, le panneau principal 24 peut également comporter des fibres réalisées dans un matériau plastique. Le matériau plastique peut être un matériau thermoplastique ou thermodurcissable. Avantageusement, les fibres sont réalisées dans un matériau choisi parmi: le polyamide, également désigné par l'acronyme "PA", le polyéthylène également désigné par l'acronyme "PE", le polyuréthane désigné également par l'acronyme "PU", le polyétherimide, également désigné par l’acronyme "PEI", ou le polytéréphtalate d'éthylène, également désigné par l’acronyme "PET". Il est possible d'utiliser un matériau composé intégralement de fibres réalisées dans un matériau plastique précité. En variante, les fibres plastiques de différents types peuvent être mélangées entre elles et/ou avec des fibres naturelles et/ou des fibres minérales et/ou des fibres réalisées dans un matériau aramide. [0063] According to another embodiment, the main panel 24 may also comprise fibers made of a plastic material. The plastic material may be a thermoplastic or thermosetting material. Advantageously, the fibers are made of a material chosen from: polyamide, also designated by the acronym "PA", polyethylene also designated by the acronym "PE", polyurethane also designated by the acronym "PU", polyetherimide, also designated by the acronym "PEI", or polyethylene terephthalate, also designated by the acronym "PET". It is possible to use a material composed entirely of fibers made of a aforementioned plastic material. Alternatively, the plastic fibers of different types can be mixed with each other and/or with natural fibres and/or mineral fibres and/or fibres made from an aramid material.

[0064] Dans le cas d'un matériau comportant des fibres en plastique, le panneau principal 24 peut comporter un liant assurant une liaison entre les fibres. Toutefois, il peut ne pas être nécessaire d'utiliser un liant dans la mesure où les fibres en plastique vont se lier entre elles lorsqu'elles seront chauffées. [0064] In the case of a material comprising plastic fibers, the main panel 24 may comprise a binder providing a bond between the fibers. However, it may not be necessary to use a binder since the plastic fibers will bond together when heated.

[0065] En variante, le panneau principal 24 peut comporter un mélange de fibres réalisées dans un matériau plastique et de fibres naturelles. Un tel mélange peut être réalisée de façon à optimiser la thermoformabilité du panneau principal 24, si nécessaire. [0065] Alternatively, the main panel 24 may comprise a mixture of fibers made of a plastic material and natural fibers. Such a mixture may be made so as to optimize the thermoformability of the main panel 24, if necessary.

[0066] Suivant un autre mode de réalisation, le panneau principal 24 comporte des fibres de carbone, combinées éventuellement avec une résine. Les fibres en carbone peuvent être ignifuges. La résine peut être un matériau thermoplastique ou thermodurcissable. [0066] According to another embodiment, the main panel 24 comprises carbon fibers, optionally combined with a resin. The carbon fibers may be flame retardant. The resin may be a thermoplastic or thermosetting material.

[0067] En particulier, un taux en masse de la résine peut être compris entre 5% et 40%, de préférence entre 20% et 25%, de la masse totale du panneau principal 24. [0067] In particular, a mass rate of the resin may be between 5% and 40%, preferably between 20% and 25%, of the total mass of the main panel 24.

[0068] De telles fibres en carbone peuvent présenter des propriétés de résistance au feu et possèdent une stabilité thermique élevée, ne se consumant pas facilement. Lorsque de telles fibres en carbone sont exposées à des températures élevées, elles se décomposent sans flammes et forment une couche de carbone qui agit comme un isolant thermique, ralentissant ainsi une propagation du feu. [0068] Such carbon fibers can exhibit fire-resistant properties and have high thermal stability, not being easily consumed. When such carbon fibers are exposed to high temperatures, they decompose without flame and form a carbon layer that acts as a thermal insulator, thereby slowing down a spread of fire.

[0069] De telles fibres en carbone permettent la fabrication d'un panneau principal 24 ayant des propriétés structurelles, de légèreté et de résistance thermique. [0069] Such carbon fibers allow the manufacture of a main panel 24 having structural properties, lightness and thermal resistance.

[0070] Quel que soit le matériau choisi pour les fibres, à savoir des fibres réalisées dans un matériau plastique et/ou fibres naturelles, au moins une partie des fibres peut être constituée de matériaux recyclés. [0071] Dans le mode de réalisation de la figure 1 , la porte 21 comporte le panneau principal 24 réalisé dans un matériau à base de feutre. Le panneau principal 24 peut comporter une portion 27 s'étendant en saillie par rapport au panneau principal 24, notamment la face interne 24.1 La portion 27 constitue une déformation en saille apte à constituer, par exemple, un accoudoir pour le passager assis sur le siège 12. [0070] Regardless of the material chosen for the fibers, namely fibers made from a plastic material and/or natural fibers, at least part of the fibers may be made from recycled materials. [0071] In the embodiment of FIG. 1, the door 21 comprises the main panel 24 made of a felt-based material. The main panel 24 may comprise a portion 27 extending in projection relative to the main panel 24, in particular the internal face 24.1 The portion 27 constitutes a projecting deformation capable of constituting, for example, an armrest for the passenger seated on the seat 12.

[0072] La figure 2 est une vue en perspective du repose-pieds 20 disposé à l'intérieur de l’unité de siège 10 ayant le panneau principal 24 selon l'invention. [0072] Figure 2 is a perspective view of the footrest 20 disposed inside the seat unit 10 having the main panel 24 according to the invention.

[0073] Plus particulièrement, dans le mode de réalisation de la figure 2, une paroi 25 du logement 19 comporte le panneau principal 24 réalisé dans un matériau à base de feutre. [0073] More particularly, in the embodiment of FIG. 2, a wall 25 of the housing 19 comprises the main panel 24 made of a felt-based material.

[0074] La figure 3 est une vue en perspective d'une pièce d’habillage de l’unité de siège 10 selon l’invention. [0074] Figure 3 is a perspective view of a trim piece of the seat unit 10 according to the invention.

[0075] Plus particulièrement, dans le mode de réalisation de la figure 3, la coque 14 comporte une pièce d'habillage constituée par le panneau principal 24 réalisé dans un matériau à base de feutre. [0075] More particularly, in the embodiment of FIG. 3, the shell 14 comprises a covering part constituted by the main panel 24 made of a felt-based material.

[0076] La figure 4a est une vue de côté du panneau principal 24 selon un premier mode de réalisation de l'invention. [0076] Figure 4a is a side view of the main panel 24 according to a first embodiment of the invention.

[0077] Plus particulièrement, un panneau additionnel 28 est fixé sur une face du panneau principal 24. De préférence, le panneau additionnel 28 est fixé sur la face interne 24.1 du panneau principal 24. Ainsi, le panneau additionnel 28 n’est pas visible depuis l'extérieur de l'unité de siège 10, c’est-à-dire notamment non visible depuis le couloir de circulation de la cabine d'avion. [0077] More particularly, an additional panel 28 is fixed on one face of the main panel 24. Preferably, the additional panel 28 is fixed on the internal face 24.1 of the main panel 24. Thus, the additional panel 28 is not visible from the outside of the seat unit 10, that is to say in particular not visible from the circulation corridor of the aircraft cabin.

[0078] Le panneau additionnel 28 peut être réalisé dans un matériau à base de feutre. Le matériau à base de feutre peut être un matériau identique ou différent du matériau du panneau principal 24. [0079] Selon un exemple de réalisation, tel que présenté à la figure 4a, le panneau additionnel 28 peut présenter une forme ondulée de façon à rigidifier le panneau principal 24. [0078] The additional panel 28 may be made of a felt-based material. The felt-based material may be a material identical to or different from the material of the main panel 24. [0079] According to an exemplary embodiment, as presented in FIG. 4a, the additional panel 28 may have a wavy shape so as to stiffen the main panel 24.

[0080] A cet effet, le panneau additionnel 28 présente une alternance de creux 30 et de plats 29. Dans une telle configuration, les creux 30 viennent en contact avec une face du panneau principal 24 alors que les plats 29 sont en saillie et donc à distance de face du panneau principal 24. De préférence, le panneau additionnel 28 recouvre au moins 80%, de préférence la totalité, de l'aire de la face du panneau principal 24. [0080] For this purpose, the additional panel 28 has an alternation of hollows 30 and flats 29. In such a configuration, the hollows 30 come into contact with a face of the main panel 24 while the flats 29 are projecting and therefore at a distance from the face of the main panel 24. Preferably, the additional panel 28 covers at least 80%, preferably all of the area of the face of the main panel 24.

[0081] Dans le mode de réalisation de la figure 4b, le panneau principal 24 comporte une alternance de creux 30 et de plats 29 de façon à présenter une forme ondulée. Le panneau additionnel 28 réalisé également à base de feutre comporte une alternance de creux 30 et de plats 29 de façon à présenter une forme ondulée. [0081] In the embodiment of Figure 4b, the main panel 24 comprises an alternation of hollows 30 and flats 29 so as to have a wavy shape. The additional panel 28 also made from felt comprises an alternation of hollows 30 and flats 29 so as to have a wavy shape.

[0082] Le panneau principal 24 et le panneau additionnel 28 sont disposés de telle façon que les plats 29 du panneau principal 24 sont en contact avec les plats 29 du panneau additionnel 28. Les creux 30 du panneau principal 24 et du panneau additionnel 28 disposés à distance les uns des autres délimitent des alvéoles 32 de façon à rigidifier l'ensemble des deux panneaux 24, 28. [0082] The main panel 24 and the additional panel 28 are arranged in such a way that the flats 29 of the main panel 24 are in contact with the flats 29 of the additional panel 28. The hollows 30 of the main panel 24 and of the additional panel 28 arranged at a distance from each other delimit cells 32 so as to stiffen the assembly of the two panels 24, 28.

[0083] La figure 5 est une vue de côté du panneau principal 24 selon un deuxième mode de réalisation de l'invention. [0083] Figure 5 is a side view of the main panel 24 according to a second embodiment of the invention.

[0084] Plus particulièrement, dans le mode de réalisation de la figure 5, un élément de renforcement 33 est fixé sur une face du panneau principal 24. Plus spécifiquement, l’élément de renforcement 33 est localisé en des zones spécifiques du panneau principal 24 afin d’assurer un renforcement localisé de telles zones spécifiques. [0084] More particularly, in the embodiment of FIG. 5, a reinforcing element 33 is fixed to one face of the main panel 24. More specifically, the reinforcing element 33 is located in specific areas of the main panel 24 in order to provide localized reinforcement of such specific areas.

[0085] L'élément de renforcement 33 est réalisé dans un matériau rigide, tel que du plastique et/ou un matériau composite. Notamment, l’élément de renforcement 33 présente une rigidité supérieure à une rigidité du panneau principal 24. [0085] The reinforcing element 33 is made of a rigid material, such as plastic and/or a composite material. In particular, the reinforcing element reinforcement 33 has a stiffness greater than a stiffness of the main panel 24.

[0086] De préférence, l'élément de renforcement local 33 est fixé sur la face interne 24.1 du panneau principal 24. Ainsi, l'élément de renforcement local 33 n’est pas visible depuis l'extérieur de l'unité de siège 10. [0086] Preferably, the local reinforcement element 33 is fixed on the internal face 24.1 of the main panel 24. Thus, the local reinforcement element 33 is not visible from the outside of the seat unit 10.

[0087] L'élément de renforcement local 33 peut être constitué par un panneau de petite dimension comparativement aux dimensions du panneau principal 24. L'élément de renforcement local 33 peut être un panneau plan, tel que représenté à gauche sur la figure 5, ou un panneau ondulé, tel que représenté à droite sur la figure 5. [0087] The local reinforcing element 33 may consist of a panel of small dimensions compared to the dimensions of the main panel 24. The local reinforcing element 33 may be a flat panel, as shown on the left in FIG. 5, or a corrugated panel, as shown on the right in FIG. 5.

[0088] Alternativement ou en complément, l'élément de renforcement local 33 peut être un panneau suivant une courbure du panneau principal 24. [0088] Alternatively or in addition, the local reinforcement element 33 may be a panel following a curvature of the main panel 24.

[0089] L'élément de renforcement local 33 peut, par exemple, être disposé derrière la portion déformée 27 du panneau principal 24 formant un accoudoir. [0089] The local reinforcing element 33 may, for example, be arranged behind the deformed portion 27 of the main panel 24 forming an armrest.

[0090] La figure 6 est une vue de côté du panneau principal 24 selon un troisième mode de réalisation de l'invention. [0090] Figure 6 is a side view of the main panel 24 according to a third embodiment of the invention.

[0091] Plus particulièrement, dans le mode de réalisation de la figure 6, l'élément de renforcement 33 constitue une interface de liaison et/ou une interface de contact entre le panneau principal 24 et un autre élément de mobilier et/ou avec un composant d’un tel élément de mobilier. [0091] More particularly, in the embodiment of FIG. 6, the reinforcing element 33 constitutes a connecting interface and/or a contact interface between the main panel 24 and another piece of furniture and/or with a component of such a piece of furniture.

[0092] L'élément de renforcement 33 présente au moins : une partie de liaison 34.1 , destinée à être superposée avec le panneau principal 24, et une partie de jonction 34.2, destinée à ne pas être superposée du panneau principal 24. [0092] The reinforcing element 33 has at least: a connecting part 34.1, intended to be superimposed with the main panel 24, and a junction part 34.2, intended not to be superimposed on the main panel 24.

[0093] La partie de liaison 34.1 peut être fixée à une portion du panneau principal 24 par collage, rivetage et/ou tout autre moyen adapté à l'application. [0094] La partie de jonction 34.2 peut comporter des moyens de fixation avec l’autre élément de mobilier et/ou avec le composant d’un tel élément de mobilier, tel que, par exemple, des ouvertures de passage d'un organe de fixation ou une intégration de moyen de fixation par encliquetage, vissage, rivetage et/ou autre. [0093] The connecting portion 34.1 may be fixed to a portion of the main panel 24 by gluing, riveting and/or any other means suitable for the application. [0094] The joining part 34.2 may comprise means of fixing with the other furniture element and/or with the component of such a furniture element, such as, for example, openings for passage of a fixing member or an integration of fixing means by snap-fastening, screwing, riveting and/or other.

[0095] L'élément de renforcement 33 peut également prendre une forme d'un tube de renforcement réalisé en métal, notamment en aluminium et/ou dans un matériau composite. [0095] The reinforcing element 33 can also take the form of a reinforcing tube made of metal, in particular aluminum and/or a composite material.

[0096] La figure 7 est une vue de côté du panneau principal 24 selon un quatrième mode de réalisation de l'invention. [0096] Figure 7 is a side view of the main panel 24 according to a fourth embodiment of the invention.

[0097] Plus particulièrement, dans le mode de réalisation de la figure 7, un élément de confort 37 est disposé sur le panneau principal 24. [0097] More particularly, in the embodiment of FIG. 7, a comfort element 37 is arranged on the main panel 24.

[0098] L'élément de confort 37 peut être réalisé dans un matériau souple, comme, par exemple, de la mousse, un matériau en caoutchouc et/ou un matériau en élastomère. L'élément de confort 37 peut également comprendre plusieurs couches de matières différentes (parmi celles précitées) et pas uniquement une seule matière. Une des couches du complexe de matières de l'élément de confort 37 peut être de la mousse à haute densité qui peut être perforée ou non. [0098] The comfort element 37 may be made of a flexible material, such as, for example, foam, a rubber material and/or an elastomer material. The comfort element 37 may also comprise several layers of different materials (among those mentioned above) and not just a single material. One of the layers of the complex of materials of the comfort element 37 may be high-density foam which may or may not be perforated.

[0099] Selon un mode particulier de réalisation, l'élément de confort 37 est susceptible d’être disposé sur une face du panneau principal 24 tournée vers le passager, notamment sur la face interne 24.1 du panneau principal 24. Ainsi, agencé, l'élément de confort 37 peut notamment être disposé sur une face latérale de la coque 14, de sorte que le passager peut appuyer une partie de son corps sur l'élément de confort 37. [0099] According to a particular embodiment, the comfort element 37 is capable of being arranged on a face of the main panel 24 facing the passenger, in particular on the internal face 24.1 of the main panel 24. Thus, arranged, the comfort element 37 can in particular be arranged on a lateral face of the shell 14, so that the passenger can rest part of his body on the comfort element 37.

[00100] Selon un autre mode particulier de réalisation, l'élément de confort 37 est susceptible d’être disposé sur une face du panneau principal 24 tournée vers un couloir de circulation de la cabine d'avion. [00100] According to another particular embodiment, the comfort element 37 is capable of being arranged on a face of the main panel 24 facing a circulation corridor of the aircraft cabin.

[00101] Alternativement ou en complément, l'élément de confort 37 peut avoir une fonction de revêtement de tout ou partie du panneau principal 24. [00102] A cet effet, l'élément de confort 37 est une couche de finition fixée à tout ou partie du panneau principal 24 par collage et/ou tout autre moyen adapté à l'application. En particulier, l'élément de confort 37 en tant que couche de finition peut être fixée de façon amovible au panneau principal 24. Une telle disposition permet d’assurer un changement aisé de la couche de finition en fonction des besoins. [00101] Alternatively or in addition, the comfort element 37 may have a function of covering all or part of the main panel 24. [00102] For this purpose, the comfort element 37 is a finishing layer fixed to all or part of the main panel 24 by gluing and/or any other means adapted to the application. In particular, the comfort element 37 as a finishing layer can be removably fixed to the main panel 24. Such an arrangement makes it possible to ensure easy changing of the finishing layer as required.

[00103] Notamment, l'élément de confort 37 peut être de type tissus, suédine, cuir, « simili » cuir et/ou tout autre matériau permettant d’assurer une finition d’aspect au panneau principal 24. [00103] In particular, the comfort element 37 may be of the fabric, suede, leather, “imitation” leather type and/or any other material making it possible to provide an appearance finish to the main panel 24.

[00104] La figure 8 est une vue en perspective d’un premier mode de réalisation de la porte 21 selon l'invention. [00104] Figure 8 is a perspective view of a first embodiment of the door 21 according to the invention.

[00105] Plus particulièrement, dans le mode de réalisation de la figure 8, la porte 21 comporte au moins un panneau principal 24 muni d'une charnière 31 . [00105] More particularly, in the embodiment of FIG. 8, the door 21 comprises at least one main panel 24 provided with a hinge 31.

[00106] En particulier, la charnière 31 est constituée par une zone de faiblesse mécanique 35, apte à permettre un pliage localisé du panneau principal 24. Ainsi, en cas de situation d’urgence et/ou lorsque le mécanisme de déplacement de la porte 21 est dysfonctionnel, un passager peut, en appliquant un effort, notamment un effort perpendiculaire au plan de la porte 21 , déplacer en rotation la porte coulissante 21 autour de la charnière 31 de façon à libérer l'accès au couloir de circulation de la cabine d'avion. [00106] In particular, the hinge 31 is constituted by a zone of mechanical weakness 35, capable of allowing localized folding of the main panel 24. Thus, in the event of an emergency situation and/or when the mechanism for moving the door 21 is dysfunctional, a passenger can, by applying a force, in particular a force perpendicular to the plane of the door 21, move the sliding door 21 in rotation around the hinge 31 so as to free access to the circulation corridor of the aircraft cabin.

[00107] En utilisation normale de la porte 21 , c’est-à-dire lorsqu'aucun effort important n'est appliqué sur la porte 21 , la charnière 31 ne fléchit pas. [00107] In normal use of the door 21, that is to say when no significant force is applied to the door 21, the hinge 31 does not flex.

[00108] La zone de faiblesse mécanique 35 s'étend suivant au moins une partie de la hauteur de la porte 21 mesurée suivant une direction verticale. De préférence, la zone de faiblesse mécanique 35 s'étend suivant toute la hauteur de la porte 21 . [00108] The mechanical weakness zone 35 extends along at least a portion of the height of the door 21 measured along a vertical direction. Preferably, the mechanical weakness zone 35 extends along the entire height of the door 21.

[00109] Selon un mode particulier de réalisation, la zone de faiblesse mécanique 35 peut être une gorge 36, réalisée sur une partie de l’épaisseur du panneau principal 24. [00110] Les figures 9a, 9b, et 9c sont des vues de face de la porte 21 de la figure 8 selon différents modes de réalisation. [00109] According to a particular embodiment, the zone of mechanical weakness 35 may be a groove 36, made on a part of the thickness of the main panel 24. [00110] Figures 9a, 9b, and 9c are front views of the door 21 of Figure 8 according to different embodiments.

[00111] Plus particulièrement, dans le mode de réalisation de la figure 9a, la gorge 36 peut être continu. [00111] More particularly, in the embodiment of FIG. 9a, the groove 36 may be continuous.

[00112] Alternativement, dans le mode de réalisation de la figure 9b, la gorge 36 peut être discontinue. [00112] Alternatively, in the embodiment of Figure 9b, the groove 36 may be discontinuous.

[00113] Enfin, dans le mode de réalisation de la figure 9c, la zone de faiblesse mécanique 35 peut comporter une pluralité de gorges 36, notamment agencées parallèles entre elles. Une telle disposition permet d'obtenir une répartition des efforts lors de l'ouverture de la porte 21. [00113] Finally, in the embodiment of FIG. 9c, the mechanical weakness zone 35 may comprise a plurality of grooves 36, in particular arranged parallel to each other. Such an arrangement makes it possible to obtain a distribution of the forces when opening the door 21.

[00114] Les figures 10a et 10b montrent différentes formes de la gorge 26 suivant un plan de coupe A-A des figures 9a-9c. [00114] Figures 10a and 10b show different shapes of the groove 26 along a section plane A-A of Figures 9a-9c.

[00115] Plus particulièrement, dans le mode de réalisation des figures 10a et 10b, la gorge 36 peut présenter une section en forme de « V », de « U » ou de « C pivoté de 90° ». En particulier, la gorge 36 ayant une forme en « V » et en « U » peut également avoir des coins arrondis. [00115] More particularly, in the embodiment of FIGS. 10a and 10b, the groove 36 may have a section in the shape of a “V”, a “U” or a “C rotated 90°”. In particular, the groove 36 having a “V” and “U” shape may also have rounded corners.

[00116] Dans les modes de réalisation de la figure 10a, la gorge 36 est réalisée par retrait local de matière dans une épaisseur du panneau principal 24. Dans une telle confirmation, le panneau principal 24 présente une épaisseur réduite à l'endroit de la gorge 36 par rapport à l'épaisseur globale du panneau principal 24. [00116] In the embodiments of FIG. 10a, the groove 36 is produced by local removal of material in a thickness of the main panel 24. In such a confirmation, the main panel 24 has a reduced thickness at the location of the groove 36 relative to the overall thickness of the main panel 24.

[00117] Dans les modes de réalisation de la figure 10b, la gorge 36 est réalisée à épaisseur constante par rapport au reste du panneau principal 24. Dans une telle confirmation, le panneau principal 24 présente la même épaisseur à l'endroit de la gorge 36 que dans le reste du panneau principal 24. Dans ce cas, la gorge 36 peut être obtenue par une déformation locale du panneau principal 24. [00117] In the embodiments of FIG. 10b, the groove 36 is made with a constant thickness relative to the rest of the main panel 24. In such a confirmation, the main panel 24 has the same thickness at the location of the groove 36 as in the rest of the main panel 24. In this case, the groove 36 can be obtained by a local deformation of the main panel 24.

[00118] La figure 11 est une vue en perspective d’un deuxième mode de réalisation de la porte 21 munie d'un dispositif de fermeture 40 selon l'invention, présenté selon une vue en perspective détaillée en figure 12. [00119] Plus particulièrement, dans le mode de réalisation des figures 11 et 12, la porte 21 comprend au moins un panneau principal 24 pouvant comprendre une zone de préhension 38, formant par exemple une poignée, à destination d’un passager ou d’un personnel de bord. [00118] Figure 11 is a perspective view of a second embodiment of the door 21 provided with a closing device 40 according to the invention, presented in a detailed perspective view in Figure 12. [00119] More particularly, in the embodiment of FIGS. 11 and 12, the door 21 comprises at least one main panel 24 which may comprise a gripping zone 38, forming for example a handle, intended for a passenger or a flight attendant.

[00120] La zone de préhension 38 est constituée, par exemple, par une portion d'extrémité du panneau principal 24. La zone de préhension 38 du panneau principal 24 peut notamment présenter une largeur réduite par rapport au reste du panneau principal 24. [00120] The gripping zone 38 is constituted, for example, by an end portion of the main panel 24. The gripping zone 38 of the main panel 24 may in particular have a reduced width compared to the rest of the main panel 24.

[00121] De plus, la zone de préhension 38 peut être pliée au moins en partie de sorte qu'au moins une partie de la zone de préhension 38 forme un angle non nul par rapport au reste du panneau principal 24. [00121] Additionally, the gripping area 38 may be bent at least partially such that at least a portion of the gripping area 38 forms a non-zero angle relative to the remainder of the main panel 24.

[00122] Par ailleurs, la zone de préhension 38 peut s'étendre en saillie depuis un bord du panneau principal 24. [00122] Furthermore, the gripping area 38 may extend projecting from an edge of the main panel 24.

[00123] Par ailleurs, un dispositif de fermeture 40 est prévu afin d’assurer un maintien à l'état fermé de la porte 21. Spécifiquement, le dispositif de fermeture 40 peut comporter une ouverture 41 , notamment réalisée dans le panneau principal 24, en particulier à proximité ou à l'intérieur de la zone de préhension 38. Préférentiellement, l'ouverture 41 est traversante. [00123] Furthermore, a closing device 40 is provided in order to ensure that the door 21 is kept in the closed state. Specifically, the closing device 40 may comprise an opening 41, in particular made in the main panel 24, in particular near or inside the gripping zone 38. Preferably, the opening 41 is a through opening.

[00124] L’ouverture 41 est destinée à coopérer avec un élément de blocage 43. Selon un mode de réalisation, l'élément de blocage 43 est apte à être fixé sur un élément fixe 45 de la cabine d'avion, par exemple une paroi de la cabine d'avion ou une paroi d’un élément de mobilier, tel que l'unité de siège 10. [00124] The opening 41 is intended to cooperate with a blocking element 43. According to one embodiment, the blocking element 43 is capable of being fixed to a fixed element 45 of the aircraft cabin, for example a wall of the aircraft cabin or a wall of a piece of furniture, such as the seat unit 10.

[00125] Les figures 13a, 13b, et 13c sont des vues de détail de différentes formes de l’élément de blocage 43 du dispositif de fermeture 40 selon l'invention. [00125] Figures 13a, 13b, and 13c are detailed views of different shapes of the blocking element 43 of the closing device 40 according to the invention.

[00126] Selon les diverses formes de réalisation présentées, l'élément de blocage 43 comporte un plot 44. [00127] Dans le mode de réalisation de la figure 13a, le plot 44 peut avoir une forme trapézoïdale, notamment avec un petit côté situé à l'opposé d'une face de l’élément fixe 45 sur laquelle est fixé l'élément de blocage 43. [00126] According to the various embodiments presented, the blocking element 43 comprises a stud 44. [00127] In the embodiment of FIG. 13a, the stud 44 may have a trapezoidal shape, in particular with a small side located opposite a face of the fixed element 45 on which the blocking element 43 is fixed.

[00128] Dans le mode de réalisation de la figure 13b, le plot 44 peut avoir une forme de queue d'aronde. [00128] In the embodiment of Figure 13b, the pad 44 may have a dovetail shape.

[00129] Dans le mode de réalisation de la figure 13c, le plot 44 peut avoir une forme de boule. [00129] In the embodiment of Figure 13c, the pad 44 may have a ball shape.

[00130] Alternativement, le plot 44 peut avoir toute autre forme adaptée à l’application. [00130] Alternatively, the pad 44 may have any other shape suitable for the application.

[00131] Lorsque la porte 21 est à l'état fermé, l'élément de blocage 43 est inséré à l'intérieur de l'ouverture 41 correspondante du dispositif de fermeture 40. Afin d'ouvrir la porte 21 , le passager et/ou le personnel de bord peut saisir la zone de préhension 38 et tirer de façon à désengager l'élément de blocage 43 par rapport à l'ouverture 41 . [00131] When the door 21 is in the closed state, the blocking element 43 is inserted inside the corresponding opening 41 of the closing device 40. In order to open the door 21, the passenger and/or the flight attendant can grasp the gripping area 38 and pull so as to disengage the blocking element 43 from the opening 41.

[00132] La porte 21 peut comporter une charnière 31 comme dans le mode de réalisation précédent, de façon à plier la porte 21 autour de la charnière afin d'ouvrir la porte 21 . [00132] The door 21 may comprise a hinge 31 as in the previous embodiment, so as to fold the door 21 around the hinge in order to open the door 21.

[00133] Les figures 14a, 14b, 14c, 14d et 14e sont des représentations schématiques illustrant différents modes de réalisation de la porte 21 munie du dispositif de fermeture 40 selon l'invention. [00133] Figures 14a, 14b, 14c, 14d and 14e are schematic representations illustrating different embodiments of the door 21 provided with the closing device 40 according to the invention.

[00134] Plus particulièrement, dans le mode de réalisation de la figure 14a, la porte 21 comporte uniquement au moins un panneau principal 24. [00134] More particularly, in the embodiment of FIG. 14a, the door 21 comprises only at least one main panel 24.

[00135] Par ailleurs, dans le mode de réalisation de la figure 14b, la porte 21 comporte au moins un panneau principal 24 et un renfort au niveau de la charnière 31. Le renfort au niveau de la charnière 31 peut être constitué par le panneau additionnel 28 et/ou ou l’élément de renforcement 33, tel que décrit précédemment. [00136] De plus, dans le mode de réalisation de la figure 14c, la porte 21 comporte au moins un panneau principal 24, un panneau additionnel 28 et/ou un élément de renforcement 33. Le panneau additionnel 28 peut être fixé sur la face interne 24.1 du panneau principal 24. De façon analogue, en complément ou alternativement, l’élément de renforcement 33 peut être fixé sur la face interne 24.1 du panneau principal 24. [00135] Furthermore, in the embodiment of FIG. 14b, the door 21 comprises at least one main panel 24 and a reinforcement at the hinge 31. The reinforcement at the hinge 31 may consist of the additional panel 28 and/or the reinforcement element 33, as described previously. [00136] Furthermore, in the embodiment of FIG. 14c, the door 21 comprises at least one main panel 24, one additional panel 28 and/or one reinforcing element 33. The additional panel 28 may be fixed to the internal face 24.1 of the main panel 24. Similarly, in addition or alternatively, the reinforcing element 33 may be fixed to the internal face 24.1 of the main panel 24.

[00137] Selon un autre mode de réalisation présenté à la figure 14d, la porte 21 comporte au moins un panneau principal 24, un panneau additionnel 28 et/ou un élément de renforcement 33. Le panneau additionnel 28 peut être situé au niveau du dispositif de fermeture 40. De façon analogue, en complément ou alternativement, l’élément de renforcement 33 peut être situé au niveau du dispositif de fermeture 40. [00137] According to another embodiment presented in FIG. 14d, the door 21 comprises at least one main panel 24, an additional panel 28 and/or a reinforcing element 33. The additional panel 28 can be located at the level of the closing device 40. Similarly, in addition or alternatively, the reinforcing element 33 can be located at the level of the closing device 40.

[00138] Enfin, dans le mode de réalisation de la figure 14e, la porte 21 comporte au moins un panneau principal 24, un panneau additionnel 28 et/ou un élément de renforcement 33. Le panneau additionnel 28 peut être situé au niveau du dispositif de fermeture 40 et entourant la zone de préhension 38 afin de la rigidifier localement. De façon analogue, en complément ou alternativement, l’élément de renforcement 33 peut être situé au niveau du dispositif de fermeture 40 et entourant la zone de préhension 38 afin de la rigidifier localement. [00138] Finally, in the embodiment of FIG. 14e, the door 21 comprises at least one main panel 24, an additional panel 28 and/or a reinforcing element 33. The additional panel 28 may be located at the level of the closing device 40 and surrounding the gripping zone 38 in order to stiffen it locally. Similarly, in addition or alternatively, the reinforcing element 33 may be located at the level of the closing device 40 and surrounding the gripping zone 38 in order to stiffen it locally.

[00139] L'invention a également pour objet une unité de siège comportant un élément de mobilier selon l'invention. [00139] The invention also relates to a seat unit comprising a furniture element according to the invention.

[00140] La présente invention a été décrite en relation avec une unité de siège 10. Toutefois, elle trouve une application avec tout élément de mobilier comportant au moins un panneau principal réalisé au moins dans un matériau à base de feutre. [00140] The present invention has been described in relation to a seat unit 10. However, it finds application with any piece of furniture comprising at least one main panel made at least from a felt-based material.

[00141] Bien entendu, les différentes caractéristiques, variantes et/ou formes de réalisation de la présente invention peuvent être associées les unes avec les autres selon diverses combinaisons dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres. [00142] En outre, l'invention n'est pas limitée aux modes de réalisation décrits précédemment et fournis uniquement à titre d'exemple. Elle englobe diverses modifications, formes alternatives et autres variantes que pourra envisager l'homme du métier dans le cadre de la présente invention et notamment toutes combinaisons des différents modes de fonctionnement décrits précédemment, pouvant être pris séparément ou en association. [00141] Of course, the various features, variants and/or embodiments of the present invention may be combined with each other in various combinations to the extent that they are not incompatible or mutually exclusive. [00142] Furthermore, the invention is not limited to the embodiments described above and provided solely as examples. It encompasses various modifications, alternative forms and other variants that may be envisaged by those skilled in the art within the scope of the present invention and in particular any combinations of the different operating modes described above, which may be taken separately or in combination.

Claims

REVENDICATIONS 1. Elément de mobilier, notamment pour une unité de siège d'avion (10), comportant au moins un panneau principal (24), caractérisé en ce que le panneau principal (24) est constitué au moins dans un matériau à base de feutre comportant une agglomération de fibres non tissées, lesdites fibres étant aptes à s'agglomérer sous l'effet de la chaleur du fait de leur propriété intrinsèque ou de l'ajout d'un liant. 1. Furniture element, in particular for an aircraft seat unit (10), comprising at least one main panel (24), characterized in that the main panel (24) is made at least from a felt-based material comprising an agglomeration of non-woven fibers, said fibers being capable of agglomerating under the effect of heat due to their intrinsic property or the addition of a binder. 2. Elément de mobilier selon la revendication 1 , caractérisé en ce que le matériau à base de feutre est mis en forme par des processus industriels du type thermocompression ou thermoformage. 2. Furniture element according to claim 1, characterized in that the felt-based material is shaped by industrial processes of the thermocompression or thermoforming type. 3. Elément de mobilier selon la revendication 1 ou 2, caractérisé en ce que le matériau constitutif du panneau principal (24) comporte des fibres naturelles réalisées dans un matériau choisi parmi du chanvre, du lin, de la laine ou du bambou. 3. Furniture element according to claim 1 or 2, characterized in that the material constituting the main panel (24) comprises natural fibers made from a material chosen from hemp, linen, wool or bamboo. 4. Elément de mobilier selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le matériau constitutif du panneau principal (24) comporte des fibres minérales et/ou des fibres réalisées dans un matériau aramide. 4. Furniture element according to any one of claims 1 to 3, characterized in that the constituent material of the main panel (24) comprises mineral fibers and/or fibers made from an aramid material. 5. Elément selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le matériau constitutif du panneau principal (24) comporte des fibres réalisées dans un matériau plastique choisi parmi: le polyamide, le polyéthylène, le polyuréthane, le polyétherimide, ou le polytéréphtalate d'éthylène. 5. Element according to any one of claims 1 to 4, characterized in that the constituent material of the main panel (24) comprises fibers made from a plastic material chosen from: polyamide, polyethylene, polyurethane, polyetherimide, or polyethylene terephthalate. 6. Elément de mobilier selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le matériau constitutif du panneau principal (24) comporte au moins un liant, notamment une résine. 6. Furniture element according to any one of claims 1 to 5, characterized in that the material constituting the main panel (24) comprises at least one binder, in particular a resin. 7. Elément de mobilier selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un panneau additionnel (28) fixé sur une face du panneau principal (24). 7. Furniture element according to any one of the preceding claims, characterized in that it comprises an additional panel (28) fixed on one face of the main panel (24). 8. Elément de mobilier selon la revendication 7, caractérisé en ce que le panneau additionnel (28) est réalisé à base de feutre, 8. Furniture element according to claim 7, characterized in that the additional panel (28) is made from felt, - le panneau principal (24) comportant une alternance de creux (30) et de plats (29) de façon à présenter une forme ondulée, - the main panel (24) comprising an alternation of hollows (30) and flats (29) so as to present a wavy shape, - le panneau additionnel (28) comportant une alternance de creux (30) et de plats (29) de façon à présenter une forme ondulée, - the additional panel (28) comprising an alternation of hollows (30) and flats (29) so as to present a wavy shape, - le panneau principal (24) et le panneau additionnel (28) étant disposés dos à dos de telle façon que les plats (29) du panneau principal (24) sont en contact avec les plats (29) du panneau additionnel (28) et que les creux (30) du panneau principal (24) et du panneau additionnel (28) disposés à distance les uns des autres délimitent des alvéoles (32) de façon à rigidifier l'ensemble de deux panneaux (24, 28). - the main panel (24) and the additional panel (28) being arranged back to back in such a way that the flats (29) of the main panel (24) are in contact with the flats (29) of the additional panel (28) and that the hollows (30) of the main panel (24) and of the additional panel (28) arranged at a distance from each other delimit cells (32) so as to stiffen the assembly of two panels (24, 28). 9. Elément de mobilier selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un élément de renforcement (33), notamment présentant une rigidité supérieure à une rigidité du panneau principal (24), fixé sur une face du panneau principal (24). 9. Furniture element according to any one of the preceding claims, characterized in that it comprises a reinforcing element (33), in particular having a rigidity greater than a rigidity of the main panel (24), fixed on one face of the main panel (24). 10. Elément de mobilier selon la revendication 9, caractérisé en ce que l'élément de renforcement (33) constitue une interface de liaison et/ou une interface de contact entre le panneau principal (24) et un autre composant de l’élément de mobilier. 10. Furniture element according to claim 9, characterized in that the reinforcing element (33) constitutes a connecting interface and/or a contact interface between the main panel (24) and another component of the furniture element. 11. Elément de mobilier selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un élément de confort (37), notamment réalisé dans un matériau souple, disposé sur une face du panneau principal (24). 11. Furniture element according to any one of the preceding claims, characterized in that it comprises a comfort element (37), in particular made of a flexible material, arranged on one face of the main panel (24). 12. Élément de mobilier selon l’une quelconque des revendications précédentes, caractérisé en ce que le panneau principal (24) comporte une portion déformée (27) s'étendant en saillie par rapport à une face du panneau principal (24), notamment pour former un accoudoir. 12. Furniture element according to any one of the preceding claims, characterized in that the main panel (24) comprises a deformed portion (27) extending in projection relative to one face of the main panel (24), in particular to form an armrest. 13. Élément de mobilier selon l’une quelconque des revendications précédentes, caractérisé en ce que le panneau principal (24) comporte au moins une charnière (31 ) constituée par une zone de faiblesse mécanique (35), notamment comportant au moins une gorge (36). 13. Furniture element according to any one of the preceding claims, characterized in that the main panel (24) comprises at least one hinge. (31) consisting of a zone of mechanical weakness (35), in particular comprising at least one groove (36). 14. Élément de mobilier selon la revendications 13, caractérisé en ce que la zone de faiblesse mécanique (35) est réalisée par retrait local de matière dans une épaisseur du panneau principal (24) et/ou à épaisseur constante par déformation locale du panneau principal (24). 14. Furniture element according to claim 13, characterized in that the zone of mechanical weakness (35) is produced by local removal of material in a thickness of the main panel (24) and/or at constant thickness by local deformation of the main panel (24). 15. Elément de mobilier selon l'une quelconque des revendications précédentes, caractérisé en ce que le panneau principal (24) comporte une zone de préhension (38), notamment constituée par une portion d'extrémité du panneau principal (24), en particulier une portion d'extrémité du panneau principal (24) au moins en partie repliée. 15. Furniture element according to any one of the preceding claims, characterized in that the main panel (24) comprises a gripping zone (38), in particular constituted by an end portion of the main panel (24), in particular an end portion of the main panel (24) at least partly folded. 16. Elément de mobilier selon l'une quelconque des revendications précédentes, caractérisé en ce que le panneau principal (24) comporte un dispositif de fermeture (40). 16. Furniture element according to any one of the preceding claims, characterized in that the main panel (24) comprises a closing device (40). 17. Elément de mobilier selon la revendication 16, caractérisé en ce que le dispositif de fermeture (40) comporte une ouverture (41 ) réalisée dans le panneau principal (24), apte à coopérer avec un élément de blocage (43), notamment ayant au moins en partie une forme trapézoïdale, une forme de queue d'aronde et/ou une forme de boule. 17. Furniture element according to claim 16, characterized in that the closing device (40) comprises an opening (41) made in the main panel (24), capable of cooperating with a blocking element (43), in particular having at least partly a trapezoidal shape, a dovetail shape and/or a ball shape. 18. Elément de mobilier selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est choisi parmi une console (13), une coque (14), un repose-pieds (20) et/ou une porte (21 ). 18. Furniture element according to any one of the preceding claims, characterized in that it is chosen from a console (13), a shell (14), a footrest (20) and/or a door (21). 19. Unité de siège d'avion (10) comportant un élément de mobilier tel que défini selon l'une quelconque des revendications précédentes. 19. Aircraft seat unit (10) comprising a furniture element as defined according to any one of the preceding claims.
PCT/EP2024/065337 2023-06-05 2024-06-04 Panel, in particular for a furniture element, in particular a seat unit Ceased WO2024251734A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP24735512.6A EP4719900A1 (en) 2023-06-05 2024-06-04 Panel, in particular for a furniture element, in particular a seat unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2305592A FR3149301A1 (en) 2023-06-05 2023-06-05 PANEL, ESPECIALLY FOR A PIECE OF FURNITURE, IN PARTICULAR A SEATING UNIT
FRFR2305592 2023-06-05

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WO2024251734A1 true WO2024251734A1 (en) 2024-12-12

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PCT/EP2024/065337 Ceased WO2024251734A1 (en) 2023-06-05 2024-06-04 Panel, in particular for a furniture element, in particular a seat unit

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EP (1) EP4719900A1 (en)
FR (1) FR3149301A1 (en)
WO (1) WO2024251734A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006077342A (en) * 2004-09-08 2006-03-23 Toray Ind Inc Aircraft interior materials
EP2821226B1 (en) * 2012-03-02 2018-12-26 Avic Composite Corporation Ltd. Composite material containing plant fibre fabrics and preparation method thereof
EP2945800B1 (en) * 2013-01-15 2019-11-27 Arkema France Multilayer composite composition its manufacturing process and article obtained thereof
WO2020039147A1 (en) * 2018-08-22 2020-02-27 Hutchinson 3d thermoformed element
EP3995358A1 (en) * 2020-11-04 2022-05-11 ALSTOM Transport Technologies Cover for seat, associated seat and vehicle comprising such a seat
WO2022238248A1 (en) * 2021-05-12 2022-11-17 Safran Seats Seat unit equipped with a noise attenuation panel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006077342A (en) * 2004-09-08 2006-03-23 Toray Ind Inc Aircraft interior materials
EP2821226B1 (en) * 2012-03-02 2018-12-26 Avic Composite Corporation Ltd. Composite material containing plant fibre fabrics and preparation method thereof
EP2945800B1 (en) * 2013-01-15 2019-11-27 Arkema France Multilayer composite composition its manufacturing process and article obtained thereof
WO2020039147A1 (en) * 2018-08-22 2020-02-27 Hutchinson 3d thermoformed element
EP3995358A1 (en) * 2020-11-04 2022-05-11 ALSTOM Transport Technologies Cover for seat, associated seat and vehicle comprising such a seat
WO2022238248A1 (en) * 2021-05-12 2022-11-17 Safran Seats Seat unit equipped with a noise attenuation panel

Also Published As

Publication number Publication date
EP4719900A1 (en) 2026-04-08
FR3149301A1 (en) 2024-12-06

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