• 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:
    A vehicle seat (12) includes a seat (14) with a seat frame (15), a backrest (16) with a back frame (17), the back frame (17) being pivotally mounted relative to to the seat frame (15) around a first transverse axis (A1) between at least one deployed position making it possible to receive an occupant of the seat (12) and a folded position in which the back frame (17) is folded down opposite the seat frame (15). The seat (12) further comprises on each side of the seat (12) a first (22) and a second (24) connecting rods intended to be fixed on a support of the seat (21) so as to be able to pivot about an axis respective transverse (A5; A6) for lifting the back frame (17) relative to said seat support (21).
    公开号:FR3082793A1
    申请号:FR1855581
    申请日:2018-06-22
    公开日:2019-12-27
    发明作者:David Epaud；Farouk Bouzid
    申请人:Faurecia Sieges dAutomobile SA；
    IPC主号:
    专利说明:

    Field
    The present description relates to a motor vehicle seat, to a motor vehicle seat assembly and to a motor vehicle comprising such a motor vehicle seat.
    Presentation of the prior art
    In the automotive field, it is known to produce seats, in particular rear seats, which can be folded so as to enlarge the size of the boot.
    Foldable seats are also known so that the backrest can be used as an armrest or as a table by occupants of neighboring seats.
    Description summary
    The purpose of this description is to present an improved motor vehicle seat device compared to existing devices.
    To this end, a vehicle seat, in particular a vehicle rear seat, is described, comprising a seat with a seat frame, a backrest with a back frame, the back frame being pivotally mounted relative to the frame. seat around a first transverse axis between at least one deployed position making it possible to receive an occupant of the seat and a folded position in which the backrest frame is folded down opposite the seat frame, seat further comprising on each side of the seat first and second connecting rods intended to be fixed on a support of the seat so as to be able to pivot about a respective transverse axis in order to lift the backrest frame with respect to said support for the seat.
    Thus, this seat can in particular take three distinct positions. In a first position, the seat can receive an occupant. In a second position, the backrest is folded back towards the seat so as to enlarge the boot of the motor vehicle. Finally, by raising the folded backrest relative to the seat support, the folded backrest can be used in particular as a table, console or armrest by potential occupants of neighboring seats.
    In particular embodiments, the vehicle seat described has one or more of the following characteristics, taken alone or in combination:
    the vehicle seat comprises on each side a flange, and a device for tilting the back frame with respect to the flanges, the tilt device preferably being discontinuous;
    on each side of said seat, the first and second connecting rods are fixed to the flange so as to be able to pivot around a respective transverse axis; the seat frame is fixed to a third connecting rod, pivotally about a transverse axis, the third connecting rod being further intended to be fixed to the seat support so as to be able to pivot about a transverse axis;
    the vehicle seat further comprises a headrest, fixed to the backrest frame, the headrest preferably being movable relative to the backrest frame;
    the vehicle seat comprises a lock, preferably fixed on the flange if necessary, adapted to lock the position of the flange relative to a support of the vehicle seat;
    the vehicle seat includes an actuator for adjusting the angular position of the backrest frame with respect to the flanges; and the vehicle seat includes an actuator for adjusting the angular position of the first and second connecting rods relative to the seat support.
    According to another aspect, a vehicle seat assembly is also disclosed, comprising a vehicle seat as described above in all of its combinations, and a vehicle seat support on which the first, second and third connecting rods are fixed. , if necessary, pivotally around a respective transverse axis.
    The seat support may be or may include a rail of a slide intended to be fixed to the floor of a motor vehicle.
    H is also described a motor vehicle comprising a chassis defining a passenger compartment with a floor, and a vehicle seat assembly as described above in all of its combinations, the vehicle seat support being fixed to the floor of the passenger compartment or being formed by said floor.
    Finally, there is described a method of folding a motor vehicle seat as described above in all of its combinations or included in a seat assembly as described above in all of its combinations, from said at least one position. deployed to a so-called console position, comprising the steps of:
    - if necessary, disengage the device for tilting the backrest frame with respect to the flanges;
    - fold down the back frame opposite the seat frame;
    - if necessary, unlock the lock;
    - if necessary, engage the device for tilting the backrest frame with respect to the flanges;
    - rotate the first and second connecting rods to raise the backrest frame with respect to the seat support until reaching the console position; and
    - if necessary, lock the seat in the console position.
    Brief description of the drawings
    Other characteristics and advantages of the disclosed seat will appear on reading the following description of an exemplary embodiment, given by way of nonlimiting example, with reference to the accompanying drawings, in which:
    - Figure 1 shows schematically a side view of a vehicle seat assembly in a first position called "deployed";
    - Figure 2 is a side view of the seat assembly of Figure 1 in a second position called "folded"; and
    - Figure 3 shows a side view of the seat assembly of Figures 1 and 2, in a third position called "console".
    detailed description
    In the different figures, the same references designate identical or similar elements. For the sake of brevity, only the elements which are useful for understanding the embodiment described are shown in the figures and are described in detail below.
    In the following description, when reference is made to qualifiers of absolute position, such as the terms "front", "rear", "top", "bottom", "left", "right", etc., or relative, such as the terms "above", "below", "upper", "lower", etc., or to qualifiers of orientation, such as "horizontal", "vertical", etc., it is made reference, unless otherwise specified, to the orientation of the figures or of a seat in its normal position of use.
    Figure 1 schematically shows a motor vehicle seat assembly 10 comprising a motor vehicle seat 12 mounted on a slide mechanism 13 for fixing the vehicle seat device 12 on the floor 11 of a motor vehicle. The floor 11 is for example formed by the chassis of the motor vehicle. The motor vehicle seat 12 is advantageously a rear seat.
    In the following, the longitudinal direction X means the longitudinal direction of the seat. The longitudinal direction of the seat is considered to be the same as the longitudinal direction of the motor vehicle in which the seat is mounted. This longitudinal direction X corresponds to the normal direction of advance of the vehicle. The transverse direction Y is the transverse direction of the seat. The transverse direction of the seat thus corresponds to the transverse or lateral direction of the motor vehicle. This transverse direction corresponds to a direction perpendicular to the normal direction of advance of the vehicle. Finally, the vertical direction Z is a vertical direction of the seat, perpendicular to the longitudinal and transverse directions.
    The seat 12 comprises a seat 14, with a seat frame 15 and a back 16, with a back frame 17. Advantageously, the back frame 17 is pivotally mounted relative to the seat frame 15 around a first transverse axis A1, that is to say an axis parallel to the direction Y.
    In the following, one side of the car seat 12 is described, it being understood that the two sides of the seat 12 are substantially identical.
    The backrest frame 17 is also pivotally mounted about a second transverse axis A2 with respect to a flange 18. In the present case, an articulation mechanism 20 is interposed between the flange 18 and the backrest frame 17. The articulation mechanism 20 is for example a discontinuous mechanism, that is to say that it is adapted to adjust the angular position of the backrest frame 17 relative to the flange 18 in a finite number of discrete positions . The articulation mechanism 20 can advantageously have a "disengaged" mode for folding down the back frame 17, for example in the position shown in FIG. 2, as opposed to the "engaged" mode in which the articulation mechanism allows adjustment of the inclination of the backrest frame 17. Preferably, the articulation mechanism 20 is electrically controlled. Thus, the adjustment of the inclination of the backrest frame 17 is carried out by means of control buttons of the articulation mechanism 20. To do this, the articulation mechanism 20 may for example comprise a drive motor. The drive motor can then be controlled using the control buttons. Alternatively, the articulation mechanism 20 can in particular be a “hook-cable” type system, comprising a cam and having an angular adjustment range in which the articulation mechanism is not locking (disengaged position), and a another adjustment range, distinct from the first, in which the articulation mechanism can be locked (engaged position). For example, the articulation mechanism must be unlocked in order to be able to adjust its angular position, the adjustment being carried out while keeping the articulation mechanism unlocked. Then, once the satisfactory angular position has been reached, the articulation mechanism 20 is again locked.
    In the example illustrated, the flange 18 is connected to a support 21 of the seat, by means of first and second connecting rods 22, 24. Each connecting rod 22, 24 is pivotally mounted in the vicinity of a first end on the flange 18 around 'a third and a fourth transverse axis A3, A4 respectively. Each connecting rod 22, 24 is also pivotally mounted, in the vicinity of its second end, on the support 21, around a fifth and a sixth transverse axis A5, A6 respectively.
    An actuator can advantageously be provided for adjusting the angular position of the connecting rods 22, 24 relative to the support 21 of the seat. For example, a jack, in particular an electric jack, can be provided between the support 21 of the seat and one of the connecting rods 22,
    24. In this case, the jack is advantageously mounted to rotate freely around transverse axes at each of its ends, relative to the support 21, on the one hand, and to the connecting rod 22, 24, on the other hand.
    Here, a third connecting rod 26 connects the seat frame 15 and the support 21. This third connecting rod 26 is mounted to rotate freely around a seventh transverse axis A7 relative to the seat frame 15 in the vicinity of a first end. In the vicinity of its second end, the third connecting rod 26 is here mounted to rotate freely relative to the support 21, around the same fifth axis A5 around which the first connecting rod 22 can pivot relative to the support 21.
    Furthermore, the seat 12 includes a headrest 28 with a headrest frame 30. The headrest frame 30 is mounted on the backrest frame 17. For example, the support frame -head 30 can be moved relative to the back frame 17, especially in translation, to adjust the height of the headrest 28.
    Finally, in the example illustrated, the support 21 of the seat forms a rail, in this case the movable rail, of the slide mechanism 13, the support 21 being received in a rail 32, in this case the fixed rail, of the slide mechanism 13, fixed to the floor 11. Thus, the slide mechanism 13 makes it possible to adjust the longitudinal position of the seat 12 in the vehicle.
    As illustrated in Figures 1 to 3, the seat assembly 10 which has just been described can in particular take three distinct positions, corresponding to three different uses.
    In a first position, called "deployed", illustrated in FIG. 1, the seat 12 is in a position making it possible to receive an occupant of the seat 12. In this position, the back frame 17 and the seat frame 15 forms an angle substantially equal to 90 ° or even greater than 90 °. For example, the angle between the back frame 17 and the seat frame 15 is greater than or equal to 80 °, preferably greater than or equal to 85 ° and / or less than or equal to 120 °, preferably less or equal to 115 °.
    In this deployed position, the first and second connecting rods 22, 24 are in a low position, these connecting rods 22, 24 forming a substantially zero angle, for example less than 5 °, with the support 21 of the seat 12.
    On the contrary, the third connecting rod 26 is in a raised position, the angle between the third connecting rod 26 and the support 21 of the seat here being substantially equal to 90 °. For example, the angle between the third connecting rod 26 and the support 21 of the seat is greater than or equal to 60 °, preferably greater than or equal to 70 ° and / or less than or equal to 130 °, preferably less than or equal to 110 °. Thus, the seat frame 15 is in a high position, that is to say at a distance from the first and second connecting rods 22, 24 and / or from the support 21 of the seat. Above all, the seat frame 15 is then at a distance from the floor 11 of the motor vehicle, so that the seat 10 is in a position allowing an occupant to sit there comfortably.
    This position is maintained for example by blocking Γ actuator for adjusting the angular position of the first and second connecting rods 22, 24 in its corresponding position (in particular in its corresponding length).
    Alternatively or additionally, this “deployed” position is maintained by blocking the position of the flange 18 on the support 21, the rail 32 of the slide mechanism 13 or the floor 11 of the motor vehicle, by means of a lock 33 (shown diagrammatically in Figure 3). The lock 33 can also cooperate with a bar integral with the support 21, the rail 32 or the floor 11.
    In this position, the inclination of the backrest frame 15 can be adjusted by means of the articulation mechanism 20. Thus, there are in fact many deployed positions.
    In addition, for safety reasons, the angular position of the third connecting rod 26 can be locked in its corresponding angular position, by means of any blocking device accessible to those skilled in the art. In particular, a blocking latch can be provided.
    The articulation 20 can be locked in the position of FIG. 1. In this deployed position of FIG. 1, the back of the backrest frame 17 can extend in a direction B.
    FIG. 2 illustrates the folded position of the seat 12.
    In this folded position, the position of the first and second connecting rods 22, 24 is unchanged. However, the angular position of the backrest frame 17 has been modified, so that the backrest frame 17 is placed in a substantially horizontal position, facing the seat frame 15. To achieve this position of the backrest frame 17, we have for example moved into the disengaged position of the articulation mechanism 20 and the backrest frame 17 has been folded down. Thus, preferably, the articulation mechanism 20 is preferably free, so that the backrest 16 is a priori movable relative to the seat 14.
    In the example illustrated, the back of the backrest frame 17 extends in a direction B1 forming with the axis B, corresponding to the deployed position, an angle βΐ for example between 100 and 105 °, advantageously between 101 and 104 °.
    The folding of the back frame 17 is accompanied by a displacement of the seat frame 15 and the third connecting rod 26. In the folded position, in fact, the third connecting rod 26 is more inclined relative to the support 21 than in the deployed position. In other words, the angle between the third link 26 and the support is greater in the folded position than in the deployed position. This brings the seat frame 15 closer to the support 21 and / or the floor 11. It is then possible to maintain the position of the seat by blocking the angular position of the third connecting rod 26 relative to the support 21. Again, all blocking system accessible to those skilled in the art can be implemented, in particular a blocking latch.
    Finally, in the so-called console position, illustrated in FIG. 3, the first and second connecting rods 22, 24 are pivoted relative to their positions corresponding to the deployed and folded positions of the seat, described above, to raise the flange 18 relative to the support 21 of the seat and therefore the floor 11. To do this, the first and second connecting rods 22, 24, the support 21 and the flange 18 can for example substantially form a deformable parallelogram. The lifting of the flange 18 relative to the support 21 is thus controlled by the actuator for adjusting the angular position of the first and second connecting rods 22, 24.
    To move into the console position, the latch 33 is previously unlocked.
    To hold the backrest frame 17 in position, the articulation mechanism 20 is in an angular locking position of the backrest frame 17 relative to the flange 18. For example, this backrest frame position 17 corresponds to that in which the back of the backrest frame 17 is substantially horizontal. By substantially horizontal is meant here forming an angle of plus or minus 10 ° relative to the horizontal direction. Thus, in this position, the backrest frame 17 can advantageously be implemented as a console, table or armrest, in particular, for occupants of vehicle seats adjacent to seat 12.
    In this so-called console position, the angular position of the third connecting rod 26 relative to the support 21 can also be blocked. Any device for locking in angular position of the third connecting rod 26 relative to the support 21, accessible to those skilled in the art can be envisaged. In particular a blocking latch can be implemented.
    In the position illustrated in FIG. 3, by way of example, the angle between the direction B2 of the back of the backrest frame 17 and the direction B of this same back of the backrest frame 17, in the position deployed, forms an angle β2, which can for example be greater than or equal to 100 °, preferably greater than or equal to 107 ° and / or less than or equal to 115 °, preferably less than or equal to 110 °. The angle β2 is here substantially equal to 108 °, more precisely equal to 108.75 °.
    The example of a vehicle seat assembly described above is susceptible of numerous variants accessible to those skilled in the art.
    In particular, the seat support can take many forms. Thus, according to a particular example, the seat support is formed by the floor of the passenger compartment of the motor vehicle equipped with the seat.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    1. Vehicle seat (12), in particular rear vehicle seat, comprising a seat (14) with a seat frame (15), a backrest (16) with a back frame (17), the back frame (17) being pivotally mounted relative to the seat frame (15) around a first transverse axis (Al) between at least one deployed position allowing to receive an occupant of the seat (12) and a folded position in which the back frame (17) is folded down opposite the seat frame (15), seat (12) further comprising on each side of the seat (12) a first (22) and a second (24) connecting rods intended to be fixed on a support of the seat (21) so as to be able to pivot around a transverse axis (A5; A6) respective to lift the back frame (17) relative to said support of the seat ( 21).
    [2" id="c-fr-0002]
    2. Vehicle seat according to claim 1, comprising on each side a flange (18), and a tilting device (20) of the back frame (17) relative to the flanges (18), the device tilt (20) being preferably discontinuous.
    [3" id="c-fr-0003]
    3. Vehicle rear seat according to claim 2, in which, on each side of said seat (12), the first and second connecting rods (22, 24) are fixed to the flange (18) so as to be able to pivot about an axis transverse (A3; A4) respectively.
    [4" id="c-fr-0004]
    4. Vehicle seat according to one of claims 1 to 3, wherein the seat frame (15) is fixed to a third connecting rod (26), pivotally about a transverse axis (A7), the third connecting rod (26) being further intended to be fixed on the seat support (21) so as to be able to pivot around a transverse axis (A5).
    [5" id="c-fr-0005]
    5. Vehicle seat according to any one of claims 1 to 4, further comprising a headrest (28), fixed to the back frame (17), the headrest (28) being preferably movable relative to the back frame (17).
    [6" id="c-fr-0006]
    6. Vehicle seat according to any one of the preceding claims, comprising a lock (33), preferably fixed on the flange (18), if necessary, to lock the position of the flange (18) relative to a support of the vehicle seat (21).
    [7" id="c-fr-0007]
    7. Vehicle seat according to any one of the preceding claims in combination with claim 2, comprising an actuator for adjusting the angular position of the backrest frame (17) relative to the flanges (18).
    [8" id="c-fr-0008]
    8. Vehicle seat according to any one of the preceding claims, comprising an actuator for adjusting the angular position of the first and second connecting rods (22, 24) relative to the seat support (21).
    [9" id="c-fr-0009]
    9. Vehicle seat assembly (10), comprising a vehicle seat (12) according to any one of the preceding claims and a support (21) of the vehicle seat on which the first (22), second (24) are fixed. ) and third (26) connecting rods, if necessary, pivotally around a respective transverse axis (A5; A6).
    [10" id="c-fr-0010]
    10. Vehicle seat assembly according to claim 9, wherein the seat support is or comprises a rail (21) of a slide (14) intended to be fixed to the floor (11) of a motor vehicle.
    [11" id="c-fr-0011]
    11. Motor vehicle comprising a chassis defining a passenger compartment with a floor (11), and a vehicle seat assembly (10) according to claim 9 or 10, the support (21) of the vehicle seat being fixed to the floor (11) of the passenger compartment or being formed by said floor (11).
    [12" id="c-fr-0012]
    12. A method of folding a motor vehicle seat according to any one of claims 1 to 8 or included in a seat assembly according to claim 9 or 10, from said at least one deployed position to a position called console, comprising the steps of:
    if necessary, disengage the tilting device (20) of the back frame (17) relative to the flanges (18);
    fold down the back frame (17) opposite the seat frame (15);
    if necessary, unlock the lock (33);
    if necessary, engage the tilting device (20) of the back frame (17) relative to the flanges (18);
    pivot the first and second connecting rods (22; 24) to lift the back frame (17) relative to the seat support (21) until reaching the console position; and if necessary, lock the seat in the console position.
    类似技术:
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    FR2963289A1|2012-02-03|Motor vehicle i.e. commercial vehicle, has retractable seat including base movable with respect to chassis of vehicle, and backrest displaced towards top with respect to nominal utilization position, in storage position of seat
    FR2882704A1|2006-09-08|Seating assembly for e.g. minivan, has seat with base supported by front and rear legs, where each front leg has vertical and horizontal branches directly fixed on floor of vehicle, and vertical branches are connected by cross-piece
    FR2911307A3|2008-07-18|Foldable and unfoldable rear seat arrangement for motor vehicle, has backrest tilted towards front, such that gap is formed between front face of cab interior and floor pan for freeing volume for loading in interior rear volume
    EP0373081B1|1992-05-13|Collapsible seat especially for the equipment of automotive vehicles
    WO2013050719A1|2013-04-11|Stowable seat and kinematics of said seat
    FR2873067A1|2006-01-20|Motor vehicle seat, has lateral support arms articulated at their ends around transversal axis, and blocking units blocking arms and backrest frame at two inclined positions on both sides of vertical symmetrical plane
    FR3107672A1|2021-09-03|Modular vehicle seat including a single actuator
    同族专利:
    公开号 | 公开日
    US11040641B2|2021-06-22|
    CN110626234A|2019-12-31|
    FR3082793B1|2020-10-02|
    US20190389335A1|2019-12-26|
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    FR3086598B1|2018-10-02|2021-05-28|Faurecia Sieges Dautomobile|VEHICLE SEAT|
    FR3086607B1|2018-10-02|2021-06-04|Faurecia Sieges Dautomobile|RETRACTABLE SHELF DEVICE FOR VEHICLE SEAT|WO2018046433A1|2016-09-08|2018-03-15|Adient Luxembourg Holding S.à.r.l.|Vehicle seat|
    FR3101031B1|2019-09-23|2021-10-15|Faurecia Sieges Dautomobile|Reclining Vehicle Seat|
    法律状态:
    2019-05-21| PLFP| Fee payment|Year of fee payment: 2 |
    2019-12-27| PLSC| Search report ready|Effective date: 20191227 |
    2020-05-20| PLFP| Fee payment|Year of fee payment: 3 |
    2021-05-19| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1855581A|FR3082793B1|2018-06-22|2018-06-22|AUTOMOTIVE VEHICLE SEAT|
    FR1855581|2018-06-22|FR1855581A| FR3082793B1|2018-06-22|2018-06-22|AUTOMOTIVE VEHICLE SEAT|
    CN201910535210.3A| CN110626234A|2018-06-22|2019-06-20|Motor vehicle seat|
    US16/449,231| US11040641B2|2018-06-22|2019-06-21|Motor vehicle seat|
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