• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    To simplify the connection of a door (22) to the outer casing of an aircraft cell (10), it is proposed to arrange the door in a portion (18) of the outer casing having sides (19). ) inclined relative to the global plane of symmetry (14) of the aircraft cell (10), as is the case with the front and rear spikes of conventional aircraft, and in various portions of the fuselage-integrated aircraft and flying wings. Thus, the door can be configured to move in rectilinear translation from one to the other of its extreme open and closed positions.
    公开号:FR3046133A1
    申请号:FR1563248
    申请日:2015-12-23
    公开日:2017-06-30
    发明作者:Olivier Cazals；De La Sagne Jaime Genty
    申请人:Airbus Operations SAS；
    IPC主号:
    专利说明:

    AIRCRAFT CELL COMPRISING A DOOR OPENING IN TRANSLATION
    STRAIGHT
    DESCRIPTION
    TECHNICAL AREA
    The present invention relates to the field of aircraft doors, allowing access to passengers or the loading of luggage or goods. The invention applies equally to conventional type aircraft and aircraft type said "fuselage integrated", in which the doors are integrated into the fuselage, and flying wings, in which the doors are integrated with the wing.
    Consequently, the invention generally relates to an aircraft cell comprising an outer envelope provided with a door, the outer envelope can therefore be the fuselage of a conventional aircraft or fuselage integrated, or the wing of a flying wing.
    STATE OF THE PRIOR ART
    Various types of mechanisms are known for connecting an aircraft door to the outer casing of an aircraft cell.
    Such a door can indeed open by pivoting downwards or upwards, in which case specific means generally heavy must be provided to counter the weight of the door, either when closing it, or for the keeping the door in the open position. This type of door is used for many conventional aircraft and is also the type of preferred door for flying wings and integrated fuselage aircraft, such as the aircraft 10, illustrated schematically in FIGS. 1 and 2 on which the aircraft is respectively viewed from above and below, and which thus comprises three doors 12 on each side of its vertical plane of symmetry 14. For the record, a fuselage-integrated aircraft (in English "Blended Wing Body" or BWB) is an aircraft of which the cell incorporates the features of conventional fuselages and flying wings in a hybrid configuration, in which the fuselage fully integrates into the wing, which is therefore thick, with no clear distinction from the fuselage and the fuselage connection area. wing.
    In other known configurations, the door opens horizontally, in which case the opening mechanism generally involves a combination of rotational and translational movements or several rotations along different axes.
    In all cases, the mechanisms for opening the aircraft doors are relatively complex and heavy.
    DISCLOSURE OF THE INVENTION The invention aims in particular to provide a simple, economical and effective solution to this problem.
    It proposes for this purpose an aircraft cell, comprising: an outer envelope having at least one longitudinal portion, the width of which is reduced in a longitudinal direction of the aircraft cell, and provided with at least one opening; door, and - connecting means connecting the door to the outer casing and configured to move the door between two extreme positions, namely a closed position, in which the door closes the opening, and an open position, wherein the door is horizontally offset from the opening so that the door covers a region of the outer casing adjacent to the opening.
    According to the invention, the connecting means are configured so that the movement of the door from one to the other of the two extreme positions is a rectilinear translation in a direction of displacement.
    The variable width conformation of the longitudinal portion of the outer envelope makes it possible to configure a periphery of the opening so that, when the door is in the closed position, the periphery of the opening does not intercept any straight line. parallel to the direction of travel and passing through any point on the door.
    Thus, the door can move from the closed position to the open position, and vice versa, following a simple rectilinear trajectory, without being blocked by the periphery of the opening of the outer envelope.
    The type of trajectory followed by the door between its two extreme positions allows the use of particularly simple connecting means. The invention thus makes it possible in particular to avoid the use of complex articulation devices implementing combinations of rotations and translations.
    Preferably, the aircraft cell has a vertical plane of global symmetry.
    Preferably, the direction of displacement is a horizontal direction parallel to the vertical plane of global symmetry.
    Preferably, the door has an outer surface which is part of the longitudinal portion of the outer envelope in the closed position, and which has a first lateral edge extending in a first plane parallel to the vertical plane of global symmetry, and a second side edge arranged so that the movement of the door from the closed position to the open position is oriented in a direction from the second side edge to the first side edge.
    Preferably, the outer surface of the door further has a lower edge and an upper edge each connecting the first side edge to the second side edge.
    Preferably, the second lateral edge extends in a second plane forming with the first plane an angle of between 60 degrees and 120 degrees.
    Preferably, the second plane is orthogonal to the direction of displacement.
    Preferably, the aircraft cell further comprises a first support structure extending inside the aircraft cell from the outer envelope, parallel to the second plane, the door has a second structure of support extending inside the aircraft cell from the second side edge, parallel to the second plane, and the second bearing structure is applied against the first support structure in the closed position.
    Preferably, the first and second bearing structures comprise at least a first locking device opposing a movement of the door in a first direction orthogonal to the foreground.
    Preferably, the aircraft cell further comprises at least one support extending inside the aircraft cell, from the first support structure and parallel to the direction of displacement, and on which is fixed at least a part of the connecting means.
    Preferably, the aircraft cell further comprises at least one lock operable between a locking state, in which the lock opposes a displacement of the door in the direction of movement, and an unlocking state, in which the lock allows the door to move.
    Preferably, the connecting means are formed of one or more slides guiding the movement of the door between the closed position and the open position.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood, and other details, advantages and characteristics thereof will appear on reading the following description given by way of non-limiting example and with reference to the appended drawings in which: FIGS. 1 and 2, already described, are diagrammatic views, respectively from above and from below, of an integrated fuselage airframe of a known type; Figure 3 is a schematic perspective view of a front fuselage integrated aircraft cell part according to a preferred embodiment of the invention, illustrating a door of this front part; Figures 4 and 5 are partial schematic partial half views of the front part of the aircraft fuselage integrated cell of Figure 3, respectively showing the door in closed and open position; FIGS. 6 and 7 are diagrammatic side views, respectively from the outside and from the inside, of the front part of the fuselage-integrated aircraft cell of FIG. 3; FIGS. 8 and 9 are partial schematic half-views of the front part of the fuselage-integrated aircraft cell of FIG. 3, in section along the horizontal plane VIII-VIII of FIGS. 6 and 7, respectively illustrating the door in position closed and open.
    In all of these figures, identical references may designate identical or similar elements. DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT The invention proposes to take advantage of the inclination of the outer envelope of an aircraft cell relative to the overall vertical plane of symmetry thereof to provide an improved configuration of the aircraft. aircraft door. Such an inclination of the outer envelope is in fact at the front and rear tips of conventional aircraft, and in various portions of the fuselage integrated aircraft and flying wings. Depending on the case, the term "outer envelope" can thus designate the fuselage and / or the wing of an aircraft.
    The aircraft cell 10 illustrated in FIGS. 3 to 9 by way of example is an integrated fuselage airplane cell having a vertical plane of global symmetry 14. By "global" plane of symmetry, it should be understood that the outer envelope of the cell has a generally symmetrical shape with respect to this vertical plane, regardless of differences in detail that may exist between one side and the other of the outer envelope, for example with regard to the number and the conformation of the doors. In addition, the aircraft cell 10 has a longitudinal axis 16 defined as being the intersection of the vertical plane of global symmetry 14 with a main floor 17 of the cell, intended to accommodate passengers and / or goods.
    In the present description, the direction X is the longitudinal direction of the aircraft cell, which corresponds to a direction of advance of the aircraft in flight and which is parallel to the longitudinal axis 16, the direction Z is the direction vertical, orthogonal to the main floor 17A, and the Y direction is the transverse direction, orthogonal to both X and Z directions, and which therefore defines with the longitudinal axis 16 a horizontal plane.
    FIGS. 3-7 show more particularly a front part of the aircraft cell 10, the outer envelope of which comprises a longitudinal portion 18 whose width W decreases progressively from rear to front along the axis longitudinal 16 (see in Figure 4 the half-width W / 2). Therefore, in plan view as in Figures 4 and 5, the sides 19 of the longitudinal portion 18 of the aircraft cell are inclined relative to the vertical plane of global symmetry 14. In addition, the longitudinal portion 18 of the outer casing has an opening 20 for the passage of passengers or the loading / unloading of luggage or cargo.
    The aircraft cell 10 further comprises a door 22 movable between a closed position (FIGS. 4, 6 and 8), in which the door closes the opening 20, and an open position (FIGS. 3, 5, 7). 9), in which the door 22 is horizontally offset from the opening 20 so that the door covers a region 24 of the outer casing next to the opening 20. In the open position, the door 22 is thus spaced from the opening 20 so as to allow the passage of people, luggage and / or goods through the opening.
    According to a feature of the invention, the movement of the door 22 from the closed position to the open position is a rectilinear translation in a direction of travel 26.
    The variable width conformation of the longitudinal portion 18 makes it possible to configure a frame of the opening 20 such that, when the door is in the closed position, the frame does not intercept any straight line parallel to the direction of movement. 26 and passing through any point on the door.
    Thus, the door 22 can move from the closed position to the open position, and vice versa, following a simple rectilinear trajectory, without being blocked by the frame of the opening 20.
    The door 22 is connected to the external structure by connecting means, which are for example formed of two slides 28A and 28B integral with the outer casing and respectively guiding the movement of two slides 29A, 29B secured to the door between the position closure and the open position thereof (Figures 3 and 7).
    Alternatively, the connecting means may be formed of articulated arms, or any other type of mechanism for causing a displacement of the door 22 in rectilinear translation.
    In addition, the slide 28A is for example housed in a space below the floor 17A of the cell, while the slide 28B is for example housed in an upper storage space 17B (Figure 7).
    In the preferred embodiment of the invention, the displacement direction 26 is a horizontal direction parallel to the vertical plane of global symmetry 14, that is to say a direction substantially parallel to the longitudinal axis 26 (FIG. 7).
    The horizontal nature of the direction of movement 26 makes it possible in particular to prevent the displacement of the door from being disturbed by the weight of the latter, and thus to avoid the use of the complex and heavy means usually used to counter this type of movement. disruptions.
    The character parallel to the vertical plane of global symmetry 14 of the direction of travel 26 offers numerous advantages which will be detailed below.
    As a variant, the displacement direction 26 may nevertheless take other orientations without departing from the scope of the present invention, by means of an adaptation of the shape of the opening 20. Thus, the displacement direction 26 may be a horizontal direction inclined by relative to the vertical plane of global symmetry 14, or even a direction orthogonal to the vertical plane of global symmetry 14, which may especially be advantageous when the sides of the longitudinal portion 18 form a relatively high angle with the vertical plane of global symmetry 14. displacement direction 26 may also not be horizontal, without departing from the scope of the invention.
    In all cases, the rectilinear trajectory followed by the door 22 between its two extreme positions allows the use of particularly simple connecting means. The invention thus makes it possible in particular to avoid the use of complex articulation devices using several rotations or a combination of rotations and translations. In general, the door 22 has an outer surface 30 which fits into the longitudinal portion 18 of the outer casing when the door is in the closed position.
    This outer surface 30 has two opposite lateral edges, namely a first lateral edge 32 and a second lateral edge 34. In the terminology of the invention, the movement of the door from the closed position to the open position is oriented in a direction from the second lateral edge 34 to the first lateral edge 32 (that is, strictly speaking, a direction from a centroid of the second lateral edge 34 to a centroid of the first lateral edge 32) .
    Thus, in the illustrated example, the movement of the door 22 from the closed position to the open position is oriented towards the front of the aircraft cell, so that the first lateral edge 32 is a front edge. while the second lateral edge 34 is a trailing edge.
    The configuration of the door 22 is compatible with the use of cover plates or other systems of seals, especially at the level of the first lateral edge 32.
    In the preferred embodiment of the invention, the first lateral edge 32 extends in a first plane PI parallel to the vertical plane of global symmetry 14. The orientation of the first plane PI parallel to the vertical plane of global symmetry 14 provides aerodynamic performance advantages of the airframe 10. This is particularly the case when the airframe is an airframe with a fuselage or a flying wing, because airflow around the outer envelope of aircraft of these types follows lines that extend in planes parallel to their vertical plane of global symmetry, following the profile of the outer envelope.
    Consequently, the positioning of the first lateral edge 32 of the door in a plane parallel to the vertical plane of global symmetry 14 makes it possible to minimize the impact of the first lateral edge on the aerodynamic performance of the aircraft cell 10, especially in the case where the opening 20 is formed in a leading edge, as in the example illustrated in the figures. This makes it possible in particular to minimize the risk of creating vortices at this level, which are known to increase the drag of the aircraft cell, and this even if there is a gap between the external surface 30 of the door and the door. external envelope of the aircraft cell, or if these two surfaces are not perfectly aligned. Such a configuration of the first lateral edge 32 thus makes it possible to reduce the drag of the aircraft cell 10. In addition, vortices of this type are also generally at the origin of noise nuisances, so that the preferred embodiment of the invention makes it possible to limit the level of such nuisances in the vicinity of the aircraft cell, in particular for the passengers and crew members embedded inside the aircraft.
    In flight, the aircraft cell is subject to bird strikes. Since it is not formed in one piece with the outer envelope, the door constitutes a point sensitive to these impacts. However, the orientation of the first lateral edge 32 reduces the influence of bird strikes on this side edge, and therefore increase the robustness of the aircraft cell with respect to these impacts.
    In the example shown, the outer surface of the door further has a lower edge 36 and an upper edge 38 which each connect the first lateral edge 32 to the second lateral edge 34.
    These lower edges 36 and upper 38 extend in respective directions inclined relative to the vertical plane of global symmetry 14 of the aircraft cell (Figure 3).
    Alternatively, the first side edge 32 and the second side edge 34 may be directly connected to each other.
    Furthermore, in the preferred embodiment of the invention, the second lateral edge 34 extends in a second plane P2 forming with the first plane PI an angle Θ between 60 degrees and 120 degrees (Figures 4 and 5).
    In the preferred example illustrated, this angle Θ is substantially equal to 90 degrees. The second plane P2 is thus orthogonal to the direction of displacement 26.
    Thus, in the case where the aircraft cell is an integrated fuselage or flying wing aircraft cell, the second lateral edge 34 extends substantially orthogonal to the flow of air around the aircraft. outer envelope.
    In addition, the aircraft cell 10 comprises a first support structure 40 extending inside the aircraft cell from the outer envelope, parallel to the second plane P2, and the door 22 has a second bearing structure 42 extending inside the aircraft cell from the second lateral edge 34, parallel to the second plane P2 (Figures 4, 5, 8 and 9).
    As shown in Figures 4 and 8, the second support structure 42 is applied against the first support structure 40 when the door 22 is in the closed position. The orientation of the support structures 40 and 42, which corresponds to the orientation of the second plane P2 in which the second lateral edge 34 is inscribed, allows an optimal recovery of the aerodynamic forces applied to the door 22 in flight, which are mainly oriented in the longitudinal direction X, in particular in the case of a fuselage-integrated aircraft cell or a flying wing cell.
    In the example shown, the support structures 40 and 42 are generally planar and take the form of two support plates respectively.
    In the preferred embodiment of the invention, the two slides 28A and 28B are respectively fixed on two parts of the frame of the opening 20, namely a lower portion 50A and an upward portion 50B, which extend to from the first support structure 40, respectively facing the lower edge 36 and the upper edge 38 of the outer surface 30 of the door 22, inside the aircraft cell 10 (Figure 3).
    In addition, the first and second support structures 40 and 42 comprise first locking devices 44 (FIGS. 8 and 9) opposing a displacement of the door in a first direction orthogonal to the first plane PI, when the door 22 is in the closed position. In the illustrated example, the first direction corresponds to the transverse direction Y.
    The first locking devices 44 comprise for example lugs or stop bolts 46 secured to the second support structure 42 and which engage in complementary housings 48 formed in the first support structure 40. Other types locking devices, known in themselves, can be used without departing from the scope of the invention.
    In addition, the frame of the door advantageously comprises second locking devices 56 (Figures 8 and 9) opposing a displacement of the door in the vertical direction Z when the door 22 is in the closed position. These second locking devices take for example the form of hooks respectively formed in the lower portions 50A and 50B upper of the frame of the opening 20, and which engage in notches provided for this purpose in an inner wall 58 of the door 22 (only one of these hooks being visible in Figures 8 and 9).
    The aircraft cell 10 further comprises one or more locks 52 (FIGS. 8 and 9). Each of these latches 52 is operable, when the door 22 is in the closed position, to pass from a locking state, wherein a portion of the latch 52 is engaged in a housing 54 formed in the door 22, for example in the second support structure 42, in an unlocked state, wherein said portion of the latch 52 is disengaged from the housing 54. In the locking state, the latch 52 thus blocks the door 22 in the direction of movement 26 while in the unlocking state, the lock 52 allows the opening of the door 22. Other locking and / or locking means can of course be provided without departing from the scope of the present invention.
    It should be noted that in the illustrated embodiment, the door 22 has two internal walls connected to one another and connected respectively to the first lateral edge 32 and the second lateral edge 34, namely the internal wall 58 mentioned above, and the second support structure 42 which forms the second inner wall.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    An aircraft cell (10), comprising: an outer casing having at least one longitudinal portion (18), whose width (W) is reduced in a longitudinal direction (X) of the aircraft cell, and provided with at least one opening (20), - a door (22), and - connecting means (28A, 28B, 29A, 29B) connecting the door to the outer casing and configured to move the door between two extreme positions a closing position, in which the door closes the opening, and an opening position, in which the door is horizontally offset from the opening so that the door covers a region (24) of the envelope external to the opening, characterized in that the connecting means are configured so that the movement of the door from one to the other of the two extreme positions is a rectilinear translation in a direction of movement (26).
    [2" id="c-fr-0002]
    An aircraft cell according to claim 1, wherein the aircraft cell (10) has a vertical plane of overall symmetry (14).
    [3" id="c-fr-0003]
    Aircraft cell according to claim 2, wherein the direction of movement (26) is a horizontal direction parallel to the vertical plane of global symmetry (14).
    [4" id="c-fr-0004]
    4. Aircraft cell according to claim 2 or 3, wherein the door (22) has an outer surface which is part of the longitudinal portion (18) of the outer envelope in the closed position, and which has a first lateral edge (32) extending in a first plane (PI) parallel to the vertical plane of global symmetry (14), and a second lateral edge (34) arranged so that the movement of the door from the closed position to the open position is oriented in a direction from the second side edge (34) to the first side edge (32).
    [5" id="c-fr-0005]
    An aircraft cell according to claim 4, wherein the outer surface of the door (22) further has a lower edge (36) and an upper edge (38) which each connect the first side edge (32) to the second side edge (34).
    [6" id="c-fr-0006]
    6. Aircraft cell according to claim 4 or 5, wherein the second lateral edge (34) extends in a second plane (P2) forming with the first plane (PI) an angle (Θ) between 60 degrees and 120 degrees.
    [7" id="c-fr-0007]
    7. Aircraft cell according to claim 6, wherein the second plane (P2) is orthogonal to the direction of movement (26).
    [8" id="c-fr-0008]
    The aircraft cell according to claim 6 or 7, further comprising a first support structure (40) extending inside the aircraft cell from the outer envelope, parallel to the second plane (P2), wherein the door (22) has a second bearing structure (42) extending inside the aircraft cell from the second side edge (34), parallel to the second plane (P2 ), wherein the second support structure (42) is applied against the first support structure (40) in the closed position, and wherein the first and second support structures (40,42) comprise at least one first blocking device (44) opposing a movement of the door in a first direction orthogonal to the first plane (PI).
    [9" id="c-fr-0009]
    The aircraft cell according to claim 8, further comprising at least one support (50A, 50B) extending inside the aircraft cell, from the first support structure (40) and parallel to the direction of movement (26), and on which is fixed at least a portion of the connecting means (28A, 28B, 29A, 29B).
    [10" id="c-fr-0010]
    10. An aircraft cell according to claim 9, further comprising at least one lock (52) operable between a locking state, wherein the lock opposes a displacement of the door (22) in the direction of movement ( 26), and an unlocking state, wherein the lock permits movement of the door.
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    同族专利:
    公开号 | 公开日
    US20170183077A1|2017-06-29|
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    FR3046133B1|2019-06-07|
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    US9957045B1|2017-09-03|2018-05-01|Brehnden Daly|Stackable drones|EP3168138B1|2015-11-10|2018-06-06|Airbus Operations GmbH|Aircraft door assembly|
    FR3046133B1|2015-12-23|2019-06-07|Airbus Operations|AIRCRAFT CELL COMPRISING A DOOR OPENING IN RECTILINE DIRECTION|
    FR3048225B1|2016-02-26|2018-04-06|Airbus Operations|DOORS FOR EASY ACCESS TO THE PRESSURE HOUSING OF A FLYING WING FROM THE LEFT EDGE.|
    法律状态:
    2016-12-22| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-30| PLSC| Publication of the preliminary search report|Effective date: 20170630 |
    2017-12-21| PLFP| Fee payment|Year of fee payment: 3 |
    2019-12-19| PLFP| Fee payment|Year of fee payment: 5 |
    2020-12-23| PLFP| Fee payment|Year of fee payment: 6 |
    2021-12-24| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1563248A|FR3046133B1|2015-12-23|2015-12-23|AIRCRAFT CELL COMPRISING A DOOR OPENING IN RECTILINE DIRECTION|
    FR1563248|2015-12-23|FR1563248A| FR3046133B1|2015-12-23|2015-12-23|AIRCRAFT CELL COMPRISING A DOOR OPENING IN RECTILINE DIRECTION|
    US15/385,379| US10597135B2|2015-12-23|2016-12-20|Aircraft cell comprising a door opening in rectilinear translation|
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