• 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 invention relates to a vehicle seat comprising a support (30) intended to be fixed rigidly to the chassis of a vehicle, a seat (10), a backrest (20) extending the rear end of the seat (10), and a link mechanism (40) which links the seat (10) to the support (30), the link mechanism (40) having a primary mechanism (40-P) which allows a forward tilting of the seat (10) and the backrest (20) relative to the support between a rest position and a forward rocking position. The seat comprises a first motor (50) adapted to tilt the seat (10) from its rest position to its tilting position, and a control element of the first motor (50).
    公开号:FR3071447A1
    申请号:FR1758802
    申请日:2017-09-22
    公开日:2019-03-29
    发明作者:Farouk Bouzid；David Epaud
    申请人:Faurecia Sieges dAutomobile SA；
    IPC主号:
    专利说明:

    AUTOMATIC TIPPING SEAT
    The present invention relates to a vehicle seat comprising a support intended to be rigidly fixed to the chassis of a vehicle, a seat, a backrest extending the rear end of the seat, and a connection mechanism which links the seat to the support. , the connection mechanism comprising a primary mechanism which allows tilting of the seat and the backrest with respect to the support between a rest position and a tilting position towards the front.
    In the following description, the terms front and rear to describe parts of the seat are defined such that the backrest is located at the rear of the seat. The longitudinal direction X designates the direction from back to front (longitudinal direction).
    A vehicle front seat, for example a three-door motor vehicle, must be able to tilt forward to allow access to the vehicle's rear seat. This tilting includes a rotation of the seat base relative to the seat support, this support being rigidly fixed to the chassis of the vehicle.
    The axis of rotation Y of the seat relative to the support is located towards the front of the seat, so that in its tilting from the rest position to the rocking position, the seat and the backrest (that is to say the upper part of the seat) tilt forward with a rotational movement around this transverse axis of rotation Y. The axis of rotation Y is perpendicular to the longitudinal direction X.
    Thus, a space immediately behind the seat is cleared to allow a passenger access to the rear seat of the vehicle, or allow him to exit the vehicle from this seat.
    However, the seat has a significant weight, which requires the passenger to make a significant effort to tilt the seat forward in his rocking potion.
    The present invention aims to remedy this drawback.
    The invention aims to provide a vehicle seat whose tilting between its rest position and its tilting position forward by a passenger is facilitated.
    This object is achieved thanks to the fact that the seat comprises a first motor capable of tilting the seat from the rest position to the rocking position, and a control element of the first motor.
    Thanks to these provisions, a passenger who wishes to access or exit the rear seat of a vehicle from this rear seat is able, by a simple actuation of the control element, to tilt the front seat from its rest position to its rocking position. The passenger can thus, with minimum effort, free up a space behind the front seat through which he can pass.
    Advantageously, the seat further comprises a locking system for the seat with the support, a second motor capable of passing the locking system from its locking position to its unlocking position, and a control element for the second motor.
    Thus, the passenger is able, without exerting significant effort, both to unlock the seat and to tilt the seat.
    Advantageously, the control element of the first motor is the control element of the second motor.
    Thus, the passenger is able to unlock and tilt the seat by a single action on the control element.
    Advantageously, the link mechanism further comprises a secondary mechanism which allows a forward translation of the seat relative to the support exclusively in a longitudinal direction X directed from the rear to the front of the seat.
    Thus, a passenger, by pushing the seat forward, is able to free up more space at the back of the seat.
    Advantageously, the seat comprises a third motor which actuates the secondary mechanism, and a control element for the third motor.
    Thus, the passenger is able, without exerting significant effort, to translate the seat forward.
    Advantageously, the control element of the first motor is the control element of the third motor.
    Thus, the passenger is able to translate forward and tilt the seat by a single action on the control element.
    The invention will be well understood and its advantages will appear better on reading the detailed description which follows, of an embodiment shown by way of non-limiting example. The description refers to the accompanying drawings in which:
    - Figure 1 is a perspective view of a seat according to the invention in the rest position,
    - Figure 2 is a side view of a seat according to the invention in the rest position,
    FIG. 3 is a side view of the seat of FIG. 2 in the rocking position,
    FIG. 4 is a perspective view of a variant of a seat according to the invention in the rest position,
    FIG. 5 is a perspective view of another embodiment of a seat according to the invention in the rest position,
    - Figure 6 is a perspective view of yet another embodiment of a seat according to the invention in the rest position.
    The vehicle seat according to the invention, shown in the figures, comprises a seat 10 and a backrest 20 which is fixed on this seat 10. The seat also comprises a support 30 which is intended to be rigidly fixed on the chassis of the vehicle ( shown in dotted lines in the figures).
    The seat 10 designates the whole part of the seat which is located under the passenger seated on the seat and whose back rests against the backrest 20.
    By convention, the backrest 20 forms the rear part of the seat, along the rear edge of the seat 10. The front edge of the seat 10 is the edge opposite the rear edge of the seat 10, and is therefore the edge the seat 10 which is furthest from the backrest 20.
    In all the figures described below, the seat is shown in the operating position, with the support 30 extending in a horizontal plane. The vertical direction Z is therefore perpendicular to the plane of the support 30.
    The seat has a rigid structure (that is to say made up of rigid parts hinged together), for example made of metal. The rigid structure is covered with cushions intended to be in contact with the passenger.
    For the sake of clarity, the seat cushions 10 and seat back 20 are not shown, so that the rigid structure and its joints are visible.
    The seat 10 is linked to the support 30 by a connection mechanism 40. This connection mechanism 40 allows the seat 10 to be tilted forward with respect to the support 30 when passing from the rest position to the position of rocker. Thus, this tilting comprises a rotation of the seat 10 about a transverse axis Y passing through the center of gravity of the seat 10, and a primary translation of the seat 10 relative to the support 30.
    The transverse axis Y is located in a plane parallel to the support 30 (which is also substantially the plane of the seat 10), perpendicular to the axis Z, and to the longitudinal axis X.
    The primary translation has a non-zero vertical component such that during tilting, the center of gravity of the seat 10 and the rear of the seat 10 are raised vertically (in the direction Z) relative to the support 30 .
    The connection mechanism 40 then consists of a primary mechanism 40P which allows rotation of the seat 10 around its center of gravity and a translation of the seat 10 relative to the support 30.
    Optionally, the tilting of the seat 10 also comprises a secondary translation of the seat 10 relative to the support 30, this translation being able to take place before, during, or after the rotation of the seat 10 relative to the support 30. This secondary translation takes place exclusively in the longitudinal direction Z by a secondary mechanism 40-S.
    The secondary mechanism 40-S comprises a guide 493 fixed on the support 30 and oriented in the longitudinal direction Z and a slider 491 to which the primary connection mechanism 40-P is connected. The slider 491 is able to slide in the guide 493 in the longitudinal direction Z.
    For example, the guide 493 consists of two parallel slides located on each lateral side of the seat 10, and the slider 491 consists of two rails (or a plurality of pads) which cooperate with these slides in order to slide in those -this.
    In this case, the link mechanism 40 consists of the primary mechanism 40-P and the secondary mechanism 40-S. By allowing a translation of the seat 10 forwards, the secondary mechanism 40-S has the advantage that it frees up more space behind the seat to install on the rear seat of the vehicle when the seat is in the tilting position.
    In all cases, the seat 10, and therefore the seat, are able to switch between a rest position and a rocking position (when we speak of "seat tilting", we naturally exclude the support 30, which remains fixed relative to the vehicle chassis).
    In all of the figures 1 to 6 described below, the link mechanism 40 consists of the primary mechanism 40-P and the secondary mechanism 40-S.
    The primary mechanism 40-P has a front articulation at the front of the seat 10, and a rear articulation at the rear of the seat 10, which are stressed simultaneously when the seat is tilted.
    Several modes of front articulation are possible.
    For example, the front articulation is a single pivot link such that the front end of the seat pivots directly relative to the support 30 (or to the slider of the secondary mechanism 40-S if it is present).
    For example, as shown in the figures in the present application, the front articulation of the seat 10 comprises two front connecting rods 41, one located on a lateral side of the seat 10, the other located on the other lateral side of the seat 10. Each front link 41 connects a front portion of the seat 10 to the slider 491 of the secondary mechanism 40-S (in the absence of a secondary mechanism 40-S, each front link 41 is connected to a portion of the support 30). The link between each front link 41 and the slider 491 is a first front pivot link 413, and the link between each front link 41 and the seat 10 is a second front pivot link 411.
    Advantageously, in comparison with a single pivot, such a hinge before the seat 10 amplifies the forward movement of the seat 10 during tilting.
    Several rear articulation modes are possible.
    For example, as shown in FIGS. 1 to 4, the rear articulation of the seat 10 comprises four bars, namely an anterior bar 42 and a rear bar 43 situated on a lateral side of the seat 10, and a front bar 42 and a rear bar 43 located on the other lateral side of the seat 10.
    Each front bar 42 and each rear bar 43 connects a rear portion of the seat 10 to the slider 491 of the secondary mechanism 40-S (in the absence of secondary mechanism 40-S, each front bar 42 and each rear bar 43 is connected to a portion of the support 30). The connection between each anterior bar 42 (posterior 43) and the slider 491 is a first anterior pivot connection 423 (posterior 433), and the connection between each anterior bar 42 (posterior 43) and the seat 10 is a second anterior pivot connection 421 (posterior 431).
    Alternatively, as shown in FIGS. 5 and 6, the articulation at the rear of the seat 10 comprises two gussets 44, one located on a lateral side of the seat 10, the other located on the other side lateral of the seat 10. For example, each gusset 44 connects the rear end of the seat 10 to the slider 491 of the secondary mechanism 40-S (in the absence of secondary mechanism 40-S, each gusset 44 is connected to a portion of the support 30). The connection between each gusset 44 and the slider 491 is a first pivot connection of gusset 443, and the connection between each gusset 44 and seat 10 is a second pivot connection of gusset 441.
    According to the invention, the seat comprises a first motor 50 capable of tilting the seat 10 from the rest position to the tilt position.
    The first motor 50 is associated with the primary link 40-P mechanism, in order to tilt the seat automatically.
    This tilting of the seat is effected by actuation by the passenger of a control element, such as a switch, which is provided with the first motor 50, and which is electrically connected to the first motor 50.
    For example, this control element (not shown) is located on the seat. Advantageously, this control element is located on the top of the seat back 20 so as to be easily accessible by a passenger.
    In a first embodiment of the invention, illustrated in FIGS. 1 to 4, the rear articulation of the seat 10 has four bars (42, 43) and the first motor 50 rotates one of the front connecting rods 41. The first motor 50 comprises a motor element 53 fixed to the slider 491, an actuator 52 which is set in motion directly by the motor element 53, and a displaceable element 51 which is integral with this front connecting rod 41 (in the absence of secondary mechanism 40-S, each motor element 53 would be fixed on the support 30). The movable element 51 cooperates with the actuator 52 so that the movement of the actuator 52 displaces the movable element 51.
    In a first variant illustrated in FIGS. 1 to 3, the actuator 52 is a pinion, and the displaceable element 51 is a toothed sector whose teeth mesh with the teeth of the pinion 52 (see FIG. 1 where the seat is in the position of rest). Thus, the motor element 53 rotates the pinion 52, which drives the toothed sector 51 in rotation, which rotates this front link 41 forward. This pivoting of the front connecting rods 41 causes the front bars 42 and rear bars 43 to rotate forward with respect to their first front pivot links 423 and rear 433. This rotation lifts the rear of the seat 10 and moves the seat 10 forwards towards its tilting position.
    In addition, thanks to the secondary mechanism 40-S, the passenger, by exerting on the seat a force directed towards the front, can slide the slider 491 in the guide 493 and translate the seat as a whole forwards.
    Figure 2 is a side view showing the seat in the rest position, and Figure 3 is a side view showing the seat in the rocking position, after actuation of the first motor 50 and tilting of the seat by the primary mechanism 40 -P, and translation of the seat forward by the secondary mechanism 40-S.
    For the sake of clarity of Figures 4 to 6 described below, only the most relevant numerical references for understanding are indicated in these figures. The other references, which designate the same parts, are already shown in FIG. 1.
    In a second variant illustrated in FIG. 4, the actuator 52 is a pinion and an endless screw, and the displaceable element 51 is a toothed tube whose teeth mesh with the endless screw (in FIG. 4 the seat is in the rest position). The toothed tube 51 has one end fixed to one of the front connecting rods 41, at a distance from the first front pivot connection 413. Thus, the driving element 53 makes the worm pivot, which translates the toothed tube, which makes it pivot this connecting rod 41 forward around the first pivot link before 413. The movement of the primary mechanism 40-P and the seat is then identical with respect to the first variant.
    In a second embodiment of the invention, illustrated in FIG. 5, the rear articulation of the seat 10 comprises two gussets 44 and the first motor 50 actuates one of the gussets 44 in rotation.
    The first motor 50 comprises a motor element 53 fixed to the slider 491, an actuator 52 which is set in motion directly by the motor element 53, and a displaceable element 51 which is integral with the gusset 44 (in the absence of a secondary mechanism 40-S, each the driving element 53 would be fixed on the support 30). The movable element 51 cooperates with the actuator 52 so that the movement of the actuator 52 displaces the movable element 51.
    By analogy with the first variant of the first embodiment described above, the actuator 52 is a pinion, and the movable element 51 is a toothed sector, the teeth of which mesh with the teeth of the pinion 52. When the motor element 53 rotates the pinion 52, the toothed sector 51 is rotated, which rotates one of the gussets 44 forwards around its first gudgeon pivot link 443. This pivoting of the gussets 44 lifts the rear of the seat 10 and moves the seat 10 forwards towards its tilting position.
    In a third embodiment of the invention, illustrated in FIG. 6, the rear articulation of the seat 10 comprises two gussets 44 and the first motor 50 rotates one of the front connecting rods 4L
    By analogy with the second variant of the first embodiment described above, the actuator 52 is a pinion and a worm, and the movable element 51 is a toothed tube whose teeth mesh with the worm (in Figure 4 the seat is in the rest position). The toothed tube 51 has one end fixed to one of the front connecting rods 41, at a distance from the first front pivot connection 413. Thus, the driving element 53 makes the worm pivot, which translates the toothed tube, which makes this front connecting rod 41 forwards around the first front pivot connection 413. This pivoting of the front connecting rods 41 causes the gussets 44 to rotate forward around their first gusset pivot connection 443, which lifts the rear of the 'seat 10 and moves the seat 10 forward to its rocking position.
    In all the embodiments described above, the motor element 53 of the first motor 50 is secured to the slider 491 of the secondary mechanism 40-S (or is secured to the support 30 in the absence of a secondary mechanism 40-S), and the movable element 51 is integral with a part of the primary mechanism 40-P.
    Alternatively, the motor element 53 of the first motor 50 is integral with a part of the primary mechanism 40-P, and the movable element 51 is integral with the slider 491 of the secondary mechanism 40-S (or is integral with the support 30 in l absence of secondary mechanism 40-S).
    The passenger returns to the rest position from the rocking position manually.
    Alternatively, this return of the seat to the rest position is effected by controlling the first motor 50 to operate it in the opposite direction.
    According to another embodiment, the seat comprises a locking system 60 for the seat relative to the support 30 and a second motor 70 which is capable of passing the locking system 60 from its locking position to its unlocking position.
    This locking system 60 comprises a male locking element 61 and a female locking element 63, these two locking elements cooperating to lock the seat in the rest position.
    When the locking system 60 is in the unlocked position, the seat 10 is free to tilt forward under the action of the first motor 50.
    The male locking element 61 is mounted on the seat 10 (respectively the support 30), the female locking element 63 then being mounted on the support 30 (respectively the seat 10) (see Figures 1 to 3).
    For example, the locking system 60 is of the “bail fix” type (where the male element 61 is a ball and the female element 63 is a hemispherical housing), or of the “latch” / latch type (where the element male 61 is a rod, and the female element 63 is a hook). Please validate or modify.
    This seat locking is effected by actuation by the passenger of a control element which is provided with the second motor 70, and which is electrically connected to the second motor 70.
    Advantageously, the control element which controls the second motor 70 is the same as that which controls the first motor 50.
    The passenger can thus unlock and tilt the seat with a single action.
    In the above description, when the connection mechanism 40 comprises a secondary mechanism 40-S, the longitudinal translation of the seat 10 relative to the support 30 is carried out manually by the passenger.
    Alternatively, the seat has a third motor (not shown) which is linked to the secondary mechanism 40-S so that a command from the third motor causes the seat 10 to move forward relative to the support 30.
    Advantageously, the control element which controls the first motor 50 also controls the third motor.
    Thus, on a single passenger command, the seat swivels and also performs forward translation.
    For example, the third motor comprises a motor element fixed to the guide 493 or to the support 30, an actuator which is set in motion directly by the motor element, and a displaceable element which is integral with the slider 491. The displaceable element cooperates with the actuator so that the movement of the actuator translates the movable element. For example, the actuator is a pinion, and the movable element is a toothed rail, the teeth of which mesh with the teeth of the pinion so that the rotation of the pinion causes the translation of the rail.
    Advantageously, in the case where the seat comprises a first motor 50, a second motor 70, and a third motor as described above, the control element which controls the first motor 50 also controls the second motor 70 and the third engine.
    权利要求:
    Claims (6)
    [1" id="c-fr-0001]
    1. Vehicle seat comprising a support (30) intended to be rigidly fixed to the chassis of a vehicle, a seat (10), a backrest (20) extending the rear end of said seat (10), and a mechanism for link (40) which links said seat (10) to said support (30), said link mechanism (40) comprising a primary mechanism (40-P) which allows the seat (10) and the backrest (20) relative to the support (30) between a rest position and a tilting position forward, said seat being characterized in that it comprises a first motor (50) capable of tilting said seat (10) from said rest position to said rocking position, and a control element of said first motor (50).
    [2" id="c-fr-0002]
    2. Seat according to claim 1 characterized in that it further comprises a locking system (60) of said seat (10) with said support (30), a second motor (70) capable of passing said locking system (60) from its locked position to its unlocked position, and a control element of said second motor (70).
    [3" id="c-fr-0003]
    3. Seat according to claim 2, characterized in that the control element of said first motor (50) is the control element of said second motor (70).
    [4" id="c-fr-0004]
    4. Seat according to any one of the preceding claims, characterized in that said connecting mechanism (40) further comprises a secondary mechanism (40-S) which allows a forward translation of said seat (10) relative to said support (30) exclusively in a longitudinal direction X directed from the rear to the front of said seat (10).
    [5" id="c-fr-0005]
    5. Seat according to claim 4, characterized in that said seat comprises a third motor which actuates said secondary mechanism (40-S), and a control element of said third motor.
    [6" id="c-fr-0006]
    6. Seat according to claim 5, characterized in that the control element of said first motor (50) is the control element of said third motor.
    类似技术:
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    FR2866845A1|2005-09-02|Seat for motor vehicle, has base whose part is pivotably mounted around longitudinal axis to change from utilization position, in which base is horizontal, to storage position, in which base is vertical
    FR3097815A1|2021-01-01|Reclining Vehicle Seat
    同族专利:
    公开号 | 公开日
    CN109532578A|2019-03-29|
    US20190092191A1|2019-03-28|
    FR3071447B1|2020-05-22|
    引用文献:
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    US10889222B2|2018-11-08|2021-01-12|Polaris Industries Inc.|Latching system for a vehicle seat|
    KR20200071253A|2018-12-11|2020-06-19|현대자동차주식회사|Fold and dive seat for vehicle|
    US10857910B2|2018-12-17|2020-12-08|Lear Corporation|Vehicle seating system|
    FR3097815B1|2019-06-25|2021-07-09|Faurecia Sieges Dautomobile|Reclining Vehicle Seat|
    FR3101031B1|2019-09-23|2021-10-15|Faurecia Sieges Dautomobile|Reclining Vehicle Seat|
    法律状态:
    2019-03-29| PLSC| Search report ready|Effective date: 20190329 |
    2019-08-20| PLFP| Fee payment|Year of fee payment: 3 |
    2020-08-19| PLFP| Fee payment|Year of fee payment: 4 |
    2021-08-19| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1758802|2017-09-22|
    FR1758802A|FR3071447B1|2017-09-22|2017-09-22|AUTOMATIC TIPPING SEAT|FR1758802A| FR3071447B1|2017-09-22|2017-09-22|AUTOMATIC TIPPING SEAT|
    US16/133,209| US20190092191A1|2017-09-22|2018-09-17|Seat with automatic tilting|
    CN201811105040.7A| CN109532578A|2017-09-22|2018-09-21|Seat with wing drop|
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