• 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:
    The passenger cabin seat of a vehicle comprises a tub (10), said tub having a seat (11) and a backrest (12) fixed to said seat with which it determines a constant angle dihedron, integral with a base (20). The tub is movable between a sitting position "a" in which the seat (11) is substantially horizontal and a rest position "r" in which the backrest (12) is tilted backwards by an angle Δ relative to at the seated position "a", in rotation relative to said base around an axis of rotation (21), substantially fixed with respect to said base, situated above the seat (11) and in front of the backrest (12) when the tub is in the sitting position "a". The tilting axis is for example defined by the form of slides on which rollers or pads.
    公开号:FR3014042A1
    申请号:FR1361857
    申请日:2013-11-29
    公开日:2015-06-05
    发明作者:Laurent Texeraud；Olivier Jerome；Gabriel Martin
    申请人:EADS Sogerma Services SAS；
    IPC主号:
    专利说明:

    [0001] The invention belongs to the field of seats for a passenger transport vehicle. It relates more particularly to a seat for a passenger cabin of a passenger vehicle by land, sea or air. Such a seat is for example installed in a cabin of a passenger transport aircraft.
    [0002] In general, a seat used for transporting passengers in a cabin of a vehicle allows the occupant of the seat to adapt the shape to meet the needs of comfort. For example it is well known to have seats in the aircraft cabins whose backrest has several possibilities of inclination that the occupant of the seat adjusts according to his need. In such seats, the presence of a joint between the backrest and the seat is a complexity that can be a source of failure and leads to reinforcements of the seat structure and mechanisms that increase the mass of the seat. Another disadvantage of the reclining backrest is that it reduces the available space at the back of the backrest, which space is generally associated with the passenger seat located behind the seat in question. In this case, it is known to advance the seat base to limit the footprint of the folder when it is inclined, but this solution further increases the complexity and mass of the seat. The present invention aims to overcome these disadvantages by simplifying the seat structure while improving the comfort of the seat. The invention more particularly relates to a passenger cabin seat of a vehicle 25 having a bucket, having a seat and a backrest fixed to the seat with which it determines a constant angle dihedron. The tub is secured to a base of the seat on which said tub is movable between a sitting position "a" in which the seat (11) is substantially horizontal and a rest position "r" in which the backrest (12) is tilted backwards by an angle Δ with respect to the seated position "a", 30 rotated relative to the base around an axis of rotation, substantially fixed relative to the base, located above of the seat and in front of the back when the tub is in the sitting position "a". There is thus obtained a seat whose position of the backrest and seat are modifiable with reduced effort and without extension or with a limited extension of the backrest back when the seat is tilted to the rest position. In one embodiment, the tub comprises a front panel secured to the seat in a front portion of said seat, substantially vertical when the tub is in the sitting position "a" and inclined to allow a seat occupant to rest a lower part of his legs when the tub is in the 10 rest position "r". There is thus obtained a surface allowing a seat occupant to rest his legs when the seat is in the rest position and which does not cause discomfort when the seat is in sitting position. In one embodiment, the tilting axis is a virtual axis whose position is determined by the shape of one or more guide rails fastened to the base on which guide rails circulate pebbles or runners. tub and or in the form of one or more guide rails fixed to the tub on which guide rails circulate rollers or pads of the base. The set of guide rails and rollers or pads, while determining the swing of the bucket, can thus be integrated into the structures of the base and the bucket and thus be invisible to the occupant of the seat. The occupant is thus protected from the risk of being stuck in one of the rails or other mechanical element and the rails themselves are protected from foreign bodies that could accidentally enter the mechanism. In one embodiment, the base comprises a bottom seat of the seat and open towards the rear of the seat, for the use of an occupant of a seat located behind the seat considered. It is thus brought to the occupant of a seat located behind the seat considered an improved comfort volume, especially in the rest position, without it being necessary to arrange the seats with a step increased compared to that necessary to the seated position, or at least with an increase of not less than 30 that which would be necessary to maintain the comfort of the occupant of the seat in rest position if such housing foot was not achieved. In particular embodiments, a headrest is hinged to the backrest and or the front panel is hinged to the seat. In these embodiments, it is possible to change during the tilting of the tub the overall profile of the tub, seat and backrest extended by the headrest and the front panel used as a resting surface for the legs, to obtain a shape more Ergonomic seat according to the position of the tub and to avoid the risk of interference between the structure of the tub and the structure of the base.
    [0003] In one embodiment, spring means are arranged between the base and the tub to compensate for all or part of the weight of the tub. Thus, when the modification of the position of the tub around the tilt axis is made muscularly by the occupant of the seat, or even by a commercial staff of the cabin in which the seat is installed during a preparation of the cabin, the efforts of passage from one position of the tub to another position, sitting, rest or intermediate, is facilitated by reducing the necessary efforts. In one embodiment, at least one actuator is arranged between the base and the tub to move said tub relative to said base between the sitting positions "a" and rest "r". Thus, without necessarily excluding the possibility of changing the position of the tub muscle way, it is possible for a seat occupant to change the position of the tub without any particular effort. The description and the drawings of a particular embodiment of the invention will make it possible to better understand the aims and advantages of the invention. It is clear that this description is given by way of example, and is not limiting in nature. In the drawings: - Figure 1 illustrates in perspective view a set of seats according to the invention arranged in two rows of two seats each; Figure 2 illustrates in perspective side view an isolated seat of the invention and occupying it in the seated position; - Figure 3 is a side perspective view of a seat of the invention, placed behind another seat, and occupant in the rest position; - Figure 4 shows schematically the movement of the bucket between sitting and rest positions relative to the base; FIG. 5 illustrates in perspective from the rear a seat of the invention, placed behind another seat, and its occupant in the rest position and illustrating the rear of a seat base according to the invention. .
    [0004] Figure 2 illustrates a seat according to the invention, isolated, said seat being shown with an occupant in a sitting position. In the remainder of the description will be used a seat marker X, Y, Z for the longitudinal, transverse and vertical axes of the seat. Along the longitudinal axis X, we use the terms "before", "back", "front" and "posterior", and along the vertical axis Z we use the terms "up", "down", "above" and "Below" using the common sense that would be given by a seat occupant. The seat 100 mainly comprises a base 20 and a tub 10.
    [0005] The seat 100 also comprises accessory elements such as, for example, but not limited to, armrests 31, a retractable shelf 32, a movable partition 33 separating from a neighboring seat ... The seat 100 is fixed by the base 20 to a floor 40 of a vehicle, not shown, conventionally, for example on floor rails to adjust the position of a seat in the cabin during the development of the cabin and in particular of arranging rows of seats to maintain between a seat and the seat in front of a separation distance, or not seats, corresponding to a desired level of comfort for the cabin.
    [0006] The tub 10 has a seat 11 and a backrest 12 extended in an upper part of said folder by a headrest 121 of said folder. A surface of the seat 11 and a surface of the backrest 12 on which rests a seat occupant form a fixed dihedron. This fixed dihedron is obtained by a rigid structure of the bucket of the seat, structure which is covered with cushions or mattresses for the comfort of the occupant of the seat. As can be seen in FIG. 1 and in FIG. 2, the angle of the dihedral between the seat and the backrest is close to 100 °, preferably substantially greater than 100 °, for example between 100 and 120 °, to take into consideration a desired comfort both in a sitting position "a" position of the seat and, as will be detailed later, a rest position "r" of the seat, without this dihedral angle is changed. The tub 20 has the general shape of a box open to the front in which is the tub 10. The open box, which can in practice have various forms, serves mainly as a structure to maintain the tub and fix the seat to the floor of the cabin and serves as an envelope to isolate the tub and the occupant from the surroundings of the cabin to create a form of respondent for the occupant. The tub 10 is secured to the base 20 movably between the seated position, illustrated in Figure 1 on the front seats and Figure 2, and the rest position, illustrated in Figure 1 on the rear seat in the foreground and in Figure 3.
    [0007] In the seated position of the tub, the surface of the seat 11 is substantially horizontally conventional for a seat and the surface of the backrest 12 in a rectified position corresponding to the dihedral angle. In the bucket rest position, the bucket is tilted back from the seated position by an angle. Due to the inclination of the bucket, in the rest position 10 the backrest 12 is inclined towards the rear and the seat 11 is raised at the front, according to the perception of the occupant of the seat. The angle Δ is advantageously between 15 degrees and 30 degrees, for example an angle of between 17 degrees and 28 degrees which corresponds to a comfort angle of a relaxation position, a value of the angle which can, however, be adjusted in This is a function of the pitch with which the following rows of seats are arranged and the level of comfort provided to the occupant of the seat. The inclination of the bucket 10 between the sitting and rest positions is obtained by a rotation of the bucket, about a horizontal tilt axis 21, that is to say parallel to the Y axis of the seat mark, with respect to the base 20. The position of the tilting axis 21 is fixed relative to the base 20. In addition, the tilting axis 21 is located above the surface of the seat 11 and forward of the surface of the backrest 12, as shown in the block diagram of Figure 4 in which the shapes of the bucket 10, sitting position "a" and in the rest position "r", and the base 11 are represented by a skeleton of a profile view of the seat. Advantageously, in the seated position, the position of the tilting axis is such that a vertical plane comprising said tilt axis is in front of a vertical of a center of gravity of the assembly formed by the tub and an occupant of the seat in the conventional position of a seated person, that is to say his back substantially against the seat back. In the rest position, due to a pendular movement of the tub, the vertical of the same center of gravity is close to the vertical plane having the tilt axis, but preferably without passing in front of this vertical plane. Thus, by releasing the movement of the tub when seated, the tub and its occupant move to the rest position, movement preferably damped by suitable means, a fluid friction damper for example, under the simple effect of gravity. However, in the rest position, when the passenger reclines in the inclined bucket and leans forward, the center of gravity of the assembly formed by the bucket and a seat occupant passes in front of the vertical plane having the axis tilting and it is thus possible for the passenger to cause a return to the seated position, provided that the bucket is unlocked, by the simple effect of gravity without it being necessary to implement actuators for this conversion movement .
    [0008] As such it should be noted that a spring element allows, if necessary, to move the stable position of the center of gravity with respect to the tilt axis, and incidentally to limit the forward movement of the passenger to ensure the return to the sitting position. In an exemplary embodiment based on the dimensions of the tub adapted to an adult individual, the tilting axis is located at a distance from the intersection of a seating plane and a tub backrest plan between 300 mm and 500 mm and is located in height above a floor on which the seat is fixed between 800 mm and 900 mm. Due to the raised position of the tilt axis 21, a center of gravity 20 of the bucket assembly 10 and occupying the seat is below said tilting axis which allows the tilting movement of the bucket 10. Because of the position of the tilting axis 21, when the tub 10 is brought from the sitting position "a" to the rest position "r" a rear point of the backrest located at a height close to the height of the tilting axis 21 described a movement 25 essentially vertical. An increase in the rearward grip of the backrest is thus limited, if not avoided, as illustrated in FIG. 4. In the seat 100, the tilting axis 21 is advantageously a virtual axis whose position is determined by the shape of one or more guide rails, not shown in the figures, fixed on the base 20, on which guide rails circulate rollers or pads of the bucket 10. The guide rails can also be fixed to the bucket and rollers or skates at the base. The guide rails have an arcuate bend whose center corresponds to the tilting axis.
    [0009] The seat also comprises locking means, not shown, for example one or retractable pins engaging in holes or a brake system, the position of the bucket 10 so that a seat occupant can immobilize the bucket at less in the seated position and in the rest position. Advantageously, the locking means make it possible to immobilize the tub in one or more intermediate positions between the sitting and rest positions. Due to the pendular assembly of the tub 10, the efforts to move the tub are relatively small, in practice as a function of the sine of an angle between a vertical and the direction determined by the tilting axis 21 and the center of gravity 10 of the mobile unit: the single tub or the tub and the occupant of the seat. It is thus possible for a seat occupant by exerting a moderate effort on the floor with his feet and or on the armrests with his arms, serving as a fulcrum, to change the position of the bucket 10, previously unlocked. If necessary, spring means provide a partial compensation of efforts to replace the bucket in seated position from the rest position or an intermediate position. Advantageously in this case, the spring means compensate at least the weight of the bucket 10 so that it can be raised with reduced effort in the absence of seat occupant. The spring means are for example bungees or gas rods, the latter 20 having the advantage of incorporating in a simple way a damper function both for a descent to the rest position and to avoid a sudden rise of the bucket to the sitting position. In one embodiment, the tub 10 is movable by means of an actuator, for example an electric actuator, which for example may be a linear actuator 25 mounted on ball joints at its ends integral with the base on the one hand and the bucket on the other hand, or which can be a drive motor of a toothed gear which meshes with a ring gear. In one embodiment, the tub also includes a front panel 13. The front panel 13 is located near a front edge of the seat 11 and extends said seat down. When the tub is in the seated position, the front panel 13 is substantially vertical.
    [0010] When the tub is in the rest position, the front panel 13 is inclined as the entire tub with the same angle relative to the seated position and forms in this case a surface on which a seat occupant can put a lower part of his legs.
    [0011] A padding of the front panel 13 improves comfort when in the rest position. The front panel 13 can also create a closed volume under the seat 12 and if necessary incorporates a storage available to the occupant of the seat or to place safety equipment such as a lifejacket 10 in the case of aircraft. In return for a fixed base and the fact that the seat back 12 moves little or no backwards between the different positions of the bucket, the seat 11 is moved forward in the rest position, decreasing the space available between the seat 100 considered and a seat preceding it in the cabin.
    [0012] This disadvantage is advantageously compensated without the need to increase the pitch of the seats by producing a footwell 22 in a lower part of the base of the seat, housing feet for the use of the occupant of the seat located immediately behind the seat considered as illustrated in Figures 3 and 5. Such a footwell is possible without major constraint because of the simplicity of the mechanical elements integrated in the seat for the movement of the tub. In particular, the guide rails are advantageously arranged near the lateral edges of the seat so that the volume left free under the seat 11, considering the displacements of said seat, can be used for the housing of feet 22 or for others. storage and / or equipment of the seat. The absence of movement of the base 20 at the rear portion of said base allows simple integration of equipment in said base, for example screens, made available to the occupant of the seat located behind the seat considered .
    [0013] Various variations are within the reach of those skilled in the art without departing from the invention. In particular, the position of the tilting axis which is fixed in the example described may be slightly dependent on the position of the tub, for example by the implementation of guide rails which are not strictly circular arcs, in order to adjust the position of the tub and the displacement efforts in the different positions. However, in this case the displacement of the tilting axis is limited to a few centimeters, mainly in the fore-and-aft direction X, in the reference reference of the seat, and the tub remains in this case always subject to a substantially pendulum movement ensuring continuity of movement and effort. Accessory parts of the tub 10 such as the headrest 121 or the front panel 13 can be mounted fixed or articulated on the tub, a headrest or an articulated front panel, even with a limited deflection angle of the order of 10 °, may be useful to limit mechanical interference with the base structure and or to improve the comfort of the seat occupant in the various positions of the bucket. The invention makes it possible to provide a seat with increased comfort compared with seats having a simple adjustment of the inclination of the backrest with a simple and light mechanical structure, and which does not require a motorization of the seat. In addition the comfort of the passenger is not affected by the settings chosen by the occupant of the seat in front of him without it being necessary to increase the pitch of the seats.
    权利要求:
    Claims (8)
    [0001]
    CLAIMS1 - Passenger cabin seat (100) of a vehicle comprising a tub (10), said tub having a seat (11) and a backrest (12) fixed to said seat with which it determines a constant angle dihedron, characterized in that the tub (10) is integral with a base (20), said tub being movable, between a sitting position "a" in which the seat (11) is substantially horizontal and a rest position "r" in which the backrest (12) is tilted backwards by an angle Δ with respect to the sitting position "a", rotated relative to said base around an axis of rotation (21), substantially fixed with respect to said base, located above the seat (11) and in front of the backrest (12) when the tub is in the sitting position "a".
    [0002]
    2 - Seat according to claim 1 wherein the bucket comprises a front panel (13) secured to the seat (11) in a front portion of said seat, substantially vertical when the bucket is in the sitting position "a" and inclined to allow a seat occupant to rest a lower part of his legs when the tub is in the rest position "r".
    [0003]
    3 - Seat according to claim 1 or claim 2 wherein the tilting axis (21) is a virtual axis whose position is determined by the shape of one or more guide rails fixed on the base (20) on which guide rails circulate rollers or pads of the tub (10) and or in the form of one or more guide rails fixed to the tub (10) on which guide rails circulate rollers or pads of the base ( 20).
    [0004]
    4 - Seat according to one of the preceding claims wherein the base (20) comprises a foot receptacle (22) in the lower part of the seat and open towards the rear of the seat, for the use of an occupant of a seat behind the seat in question.
    [0005]
    5 - Seat according to one of the preceding claims wherein a headrest (121) is hingedly attached to the folder (12).
    [0006]
    6 - Seat according to one of the preceding claims taken in combination with claim 2 wherein the front panel (13) is articulated on the seat (11).
    [0007]
    7 - Seat according to one of the preceding claims wherein spring means are arranged between the base (20) and the tub (10) to compensate all or part of the weight of the tub (10).
    [0008]
    8 - Seat according to one of the preceding claims wherein at least one actuator is arranged between the base (20) and the bucket (10) for moving said bucket relative to said base between the sitting positions "a" and rest " r ".
    类似技术:
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    FR2820400A1|2002-08-09|MULTI-POSITION SEAT FOR AIRPLANE
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    EP0385861B1|1993-03-03|Adjustable passenger seat with a retractable table
    FR2899160A1|2007-10-05|ADJUSTABLE REAR SEAT OF MOTOR VEHICLE
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    FR3049577B1|2019-08-16|CONVERTIBLE SEAT IN EXTENDED SLEEPING
    EP1707431A2|2006-10-04|Maneuvering device of a vehicle seat
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    FR2969051A1|2012-06-22|Seat i.e. rear seat for motor vehicle, has footrest including plate, where footrest is connected by rods to seat such that angular position of footrest is simultaneously changed upon modification of inclination of seat
    FR2880798A1|2006-07-21|Wheelchair, has chassis, with adjustable width, including monoblock lateral siderails assembled by tubular pins, and connecting rods where front connecting rods are larger than rear connecting rods
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    WO1988000035A1|1988-01-14|Inclinable armchair
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    同族专利:
    公开号 | 公开日
    US9434277B2|2016-09-06|
    US20150151652A1|2015-06-04|
    CN104670501A|2015-06-03|
    EP2878481B1|2018-05-16|
    CN104670501B|2019-08-13|
    FR3014042B1|2017-03-17|
    BR102014029836A2|2015-09-15|
    EP2878481A1|2015-06-03|
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    FR3025759B1|2014-09-17|2016-12-09|Sogerma|MULTI-POSITION SEAT FOR DRIVING OPERATOR|US9834308B2|2014-03-26|2017-12-05|B/E Aerospace, Inc.|Aircraft passenger seat center console unit|
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    法律状态:
    2015-11-23| PLFP| Fee payment|Year of fee payment: 3 |
    2016-06-03| CD| Change of name or company name|Owner name: STELIA AEROSPACE, FR Effective date: 20160502 |
    2016-11-29| PLFP| Fee payment|Year of fee payment: 4 |
    2017-11-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-11-29| PLFP| Fee payment|Year of fee payment: 7 |
    2020-11-27| PLFP| Fee payment|Year of fee payment: 8 |
    2021-11-30| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1361857A|FR3014042B1|2013-11-29|2013-11-29|PASSENGER SEAT WITH BUILDING STRUCTURE AND ADJUSTABLE POSITION|FR1361857A| FR3014042B1|2013-11-29|2013-11-29|PASSENGER SEAT WITH BUILDING STRUCTURE AND ADJUSTABLE POSITION|
    EP14195088.1A| EP2878481B1|2013-11-29|2014-11-27|Passenger seat with bucket structure and adjustable position|
    CN201410858383.6A| CN104670501B|2013-11-29|2014-11-28|Passenger seat with bucket shape holder structure and adjustable position|
    US14/555,807| US9434277B2|2013-11-29|2014-11-28|Passenger seat having a bucket seat structure and adjustable position|
    BR102014029836A| BR102014029836A2|2013-11-29|2014-11-28|passenger seat with adjustable frame and adjustable position|
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