WO2010122263A1 - Stowable seat for automobile, method for stowing said seat, and automobile including at least one such seat - Google Patents

Stowable seat for automobile, method for stowing said seat, and automobile including at least one such seat Download PDF

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Publication number
WO2010122263A1
WO2010122263A1 PCT/FR2010/050756 FR2010050756W WO2010122263A1 WO 2010122263 A1 WO2010122263 A1 WO 2010122263A1 FR 2010050756 W FR2010050756 W FR 2010050756W WO 2010122263 A1 WO2010122263 A1 WO 2010122263A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
frame
medallion
backrest
pivoting
Prior art date
Application number
PCT/FR2010/050756
Other languages
French (fr)
Inventor
Daniel Nicolas
Dominique Jourdan
Original Assignee
Peugeot Citroën Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroën Automobiles SA filed Critical Peugeot Citroën Automobiles SA
Publication of WO2010122263A1 publication Critical patent/WO2010122263A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2803—Adaptations for seat belts
    • B60N2/2806—Adaptations for seat belts for securing the child seat to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
    • B60N2/3081—Seats convertible into parts of the seat cushion or the back-rest or disapppearing therein, e.g. for children
    • B60N2/3084—Disappearing in a recess of the back-rest

Definitions

  • the present invention relates, in general, a retractable seat for a motor vehicle, a method of retraction of this seat and a motor vehicle comprising at least one such seat. More particularly, the present invention relates to a seat having, from a position of normal use as a passenger seat, the possibilities of a partial retraction position as well as a full retraction position.
  • the seat of the motor vehicle can be a front or rear passenger seat and the complete retracted position is particularly suitable for receiving a baby seat or a booster child.
  • the volume of this seat is required unnecessarily in the interior passenger compartment.
  • the backrest and the headrest of the unoccupied front seat greatly hinder his field of vision.
  • the passenger wants more space forward, for example to extend his legs it is not currently possible to release this space in front of the passenger without having to completely retract the front seat in front him, which is an operation requiring a certain time of handling, or even a stop of the vehicle the time of the retraction.
  • This also applies to the transport of long loads in the passenger compartment of the vehicle. It should therefore be a seat that is easily, at least in part, retractable.
  • the second example relates to the optional contribution of a child seat.
  • the child seat is often left in the car to avoid repetitive installation, and it can interfere with the transport of passengers or bulky objects, since it is superimposed on the passenger seat that supports it .
  • JP-A-7/232580 discloses a seat for a motor vehicle with a backrest frame surrounding a central portion said medallion.
  • This medallion is foldable in two parts to form a baby seat. The folding is done towards the back of the seat when the frame is not folded towards the seat, or towards the front when the frame is folded down. This arrangement does not release a space through the seat back and requires complicated mechanisms of articulation and sliding for the medallion to ensure the folding thereof.
  • the backrest is folded down, the seat is not in a compact position, since the backrest frame and the medallion occupy an important place above the seat.
  • JP-A-8183378 discloses a seat with a backrest medallion that can be placed after pivoting above and away from its seat to clear a passage through the backrest.
  • this document does not describe a seat with a retraction position comprising the step of folding the backrest against the seat.
  • the present invention aims to design a passenger seat which, in addition to clear space when retracted when it is carried out a partial retraction thereof, can form a complete retraction position and compact, offering a reception area inside the folded backrest that can be used for the positioning of an auxiliary seat of the baby seat or booster seat type.
  • the subject of the invention is a method of partial retraction of a motor vehicle seat back, this seat comprising a seat, a backrest consisting of a central part called a medallion extending in the length of that and a frame surrounding said medallion over at least a portion of its length, said method comprising a step of retracting a major part of the medallion out of the plane formed by the backrest frame, placing said major part above and below distance of the seat, characterized in that this step being simultaneous with or followed by a step of folding the frame of the backrest towards the seat, most of the medallion lying in front of the vertical plane containing the front end of the seat at the end of this drawdown.
  • the invention also relates to a motor vehicle seat, comprising a seat, a backrest consisting of a central portion said medallion extending in the length thereof and a frame surrounding said medallion over at least a part of its length, said medallion having means for pivoting relative to the frame, said frame having means for pivoting relative to the seat, characterized in that the respective pivoting means of the medallion and the frame are adapted to perform their pivoting so that the major part of the medallion is in front of the vertical plane containing the front end of the seat, when the frame is rotated to be folded towards it.
  • the means for pivoting the medallion comprise a torsion spring mounted on the pivot axis exerting a restoring force of the medallion in its partially retracted position,
  • the medallion extends substantially parallel to the seat at the end of its pivoting, when the frame remains substantially unchanged in position, - the seat has a headrest fixed on the upper part of the medallion,
  • the means for pivoting the medallion and / or the backrest frame are associated with locking means in position in the normal or retracted position and / or unlocking means for the said locking means;
  • the medallion has, on the one hand, as locking means in normal use position a first hook cooperating with a bar integral with the seat of the seat, the medallion being recalled in its partially retracted position by a return means, the unlocking means then being common with that of the backrest frame and, secondly as locking means in the retracted position an angular stop,
  • the backrest frame has, as locking means in normal use position, a first pin secured to the frame and cooperating with a second hook secured to the seat, this second hook being advantageously double to form the locking means in position retracted from the frame by cooperating with a connecting rod pivoted by said frame, the connecting rod having a sliding light around a second pin integral with the frame, this connecting rod locking in the double hook to ensure the locking in the retracted position,
  • the unlocking means of the backrest frame consists of a handle actuating a cable pivoting the second locking hook of the first pin, thus temporarily releasing the frame while the locket is recalled in the retracted position, or releasing the frame and the medallion to put them in complete retraction position.
  • the invention finally relates to a motor vehicle, characterized in that it comprises such a passenger seat or a seat whose backrest is retractable by such a method.
  • FIG. 1 is a schematic representation of a front passenger seat according to the invention, the back of this seat being in the normal use position;
  • FIG. 2 is a schematic representation of a front passenger seat according to the invention; , the back of this seat being in partial retraction position,
  • FIG. 3 is a diagrammatic representation of a front passenger seat according to the invention, the back of this seat being in full retraction position,
  • FIG. 4 is a three-quarter front view in perspective of a seat according to the invention, represented in the normal position of use,
  • FIG. 5 is a perspective rear view of a seat according to the invention, shown in a complete retracted position
  • FIG. 6 is a three-quarter front perspective view of the seat structure of the invention in FIG. normal position of use
  • Figure 7 is an enlarged perspective side view showing the lower part of the seat back of the invention in the normal position of use, and its securing means with the seat cushion
  • FIG. 8 is a side view of the structure of the seat of the invention, the back of this seat being in full retracted position
  • FIG. 9 is a top view in perspective of the passenger compartment of a vehicle with a seat. according to the invention carrying a baby seat in its secure internal space
  • - Figure 10 is a side view in perspective of the seat according to the invention carrying in its secure internal space a baby seat.
  • Figure 1 shows a section of a front seat of a motor vehicle consisting of a backrest, comprising two parts 1 and 2, and a seat 3.
  • the first part of the folder consists of a medallion 1, extending in the length of the backrest and forming the central part of it.
  • the medallion 1 is surrounded on each of its longitudinal sides respectively by an arm 2, these two arms 2 forming the frame of the folder, which will be better seen in Figure 4.
  • the central medallion 1 is articulated, relative to the arms 2 forming the backrest frame, at its upper part about an upper axis A2, extending transversely to the backrest.
  • the frame 2 of the backrest is itself articulated around a lower axis Al with respect to the seat 3, this lower axis Al also extending transversely to the backrest.
  • the medallion 1 is spacer by its upper axis A2 between the two arms 2 constituting the frame of the folder.
  • This articulated medallion may advantageously resume on its upper axis A2, the fixings and adjustments of the head support 7, the latter thus becoming integral with said medallion 1.
  • FIG. 2 shows how, keeping the frame 2 of the seat back essentially in its deployed position of normal use, in the case of a use of local loading or for a long load, the medallion 1 alone can be rotated, d one piece, to a substantially horizontal position thus releasing a passage through the two arms 2 of the backrest forming the frame. This position is the partial retraction position.
  • the medallion 1 can rotate, in one piece, the medallion 1 around its upper axis A2 of a substantially vertical position, for which it is surrounded by the frame 2 of the folder, in a substantially horizontal position, in which he left the plane of the frame 2 of the folder and placed above the seat 3 at a distance from it.
  • This frees up space above the seat cushion, especially for the introduction of objects through the frame 2 of the folder, these objects extending from the rear of this seat, for example from the rear seats to the dashboard P.
  • the retraction can be initiated by an unlocking movement and tilting of the backrest forward, the medallion 1 folder then being driven automatically rotating, preferably about 90 °, so in a retracted position where it extends substantially horizontally.
  • This can be achieved thanks to the synchronized unlocking of the medallion 1 and the frame 2 of the backrest and a mechanical drive force applied to this medallion 1, for example due to a torsion spring integrated in the axis A2, which will be better seen in Figure 6.
  • the pivoting of the medallion 1 about its axis A2 is advantageously limited by a rotation stop to obtain a position of the medallion which hinders as little as possible the passage of objects from the rear to the front of the vehicle above the seat seat and through the frame of the folder, this position being advantageously horizontal as mentioned above.
  • Figure 3 shows the complete retraction of the seat back of the vehicle.
  • the medallion 1 is pivoted relative to the frame of the backrest, formed by the arms 2 surrounding the medallion 1 along its length, around the upper axis A2.
  • the frame of the backrest by its arms 2 articulated with the seat 3 around the lower axis Al, is pivoted around the seat 3 being folded substantially against it, in position approximately horizontal.
  • the medallion 1 extends in front of the plane containing the front part of the seat 3 of the seat, preferably almost vertically, at least with a small angle with respect to the vertical, in front of this front part. In this position, where appropriate, only the headrest 7 is the integral part of the medallion 1 which is located above the backrest frame formed by the arms 2.
  • the present invention relates to a method of partial retraction of a motor vehicle seat back, this seat comprising a seat 3, a backrest composed of a central part called medallion 1 extending in the length thereof and a frame 2 surrounding said medallion 1 over at least a part of its length, said method comprising a step of retraction of a major part of the medallion 1 out of the plane formed by the frame 2 of the backrest, placing said major part above and at a distance from the seat 3, characterized in that this step is simultaneous with or followed by a step of folding the frame 2 of the backrest towards the seat 3, the major part of the medallion 1 being in front of the vertical plane containing the front end of the seat 3 at the end of this second stage.
  • the method of partial retraction may be independent of the complete retraction process with folding the frame from the back to the seat, this partial retraction taking place without the position of the frame 2 is at the end of partial retraction. , modified compared to the seat 3 but only temporarily modified at the beginning of partial retraction to initiate it as will be seen later.
  • the preferred embodiment of the invention provides a folder capable of performing partial retraction and / or complete retraction.
  • the invention also relates to a motor vehicle seat, comprising a seat 3, a backrest consisting of a central portion said medallion 1 extending in the length thereof and a frame 2 surrounding said medallion 1 on at least a portion its length, said medallion 1 having pivoting means A2 relative to the frame 2, said frame 2 having means for pivoting Al relative to the seat 3, characterized in that the pivoting means A2, Al respectively of the medallion 1 and frame 2 are able to perform their pivoting so that most of the medallion 1 is in front of the vertical plane containing the front end of the seat 3, when the frame 2 is pivoted to be folded towards it.
  • FIGS. 4 and 5 respectively showing the seat with its backrest in the normal position of use and in full retraction position, allow to better differentiate the various parts of the folder shown schematically in Figures 1 to 3.
  • the medallion 1 is surrounded on each of its longitudinal sides, essentially over their entire length by a respective arm 2 of the backrest frame and is articulated around the upper axis A2 relative thereto, the headrest 7 being advantageously secured to this medallion 1.
  • the frame of the backrest, formed of the arms 2 is articulated around the lower axis A1 relative to the seat 3 to perform a tilting forward towards it.
  • This seat 3 is fixed to the vehicle body, through supports 15 advantageously provided with slides to ensure a longitudinal adjustment of the seat.
  • this seat 3 can be supplemented with a height and site adjustment, in particular by using parallelograms, in a manner known per se.
  • at least one arm 2 of the backrest frame is provided with an unlocking handle 4, the operation of which will be explained later.
  • FIG. 5 shows a square-shaped piece 11 which, on the one hand, comprises a locking peg 6 secured to the frame 2 of the folder and articulated relative to the seat 3, on the other hand. This part 11 serves to pivot the frame 2 of the backrest relative to the seat 3 and its operation will be explained later.
  • FIGS. 6 and 7 essentially show the locking means of the medallion 1 with the frame of the 2. Also, FIG. 6 shows the sleeves 17 for receiving the rods of the headrest, as well as an isofix fastener 16 that can be used for fixing a baby seat, as will be seen later in the figures. 9 and 10.
  • the medallion having a structure 1a, is fixed with respect to the seat by means of hooks 12, situated in the lower part of the structure 1 of the medallion. . These hooks 12 are locked on the bar 18 of the seat structure 3a, which in normal use position of the seat retains the frame structure 2a of the backrest.
  • the simple tilting of the backrest frame around the lower axis Al makes it possible to release the hooks 12 of the medallion from their attachment on the bar 18.
  • a torsion spring 10, arranged around the upper axis A2, pushes the structure the medallion in its retracted position outside the backrest frame.
  • An end stop may be provided to limit the pivotal movement of the structure of the medallion with respect to the structure 3a of seat.
  • the medallion can be rotated without the backrest frame is substantially changed in position, it is only unlocked and slightly rotated at the beginning of the partial retraction operation of the medallion to initiate it.
  • the structure of the medallion advantageously incorporates fasteners of the isofix type 9 arranged around a support 14, in the form of a crossbar to the structure of the medallion, disposed above the mid-height of this structure.
  • the frame structure 2a of the backrest, formed by the arms, is maintained in position relative to the structure 3a of the seat by at least one hook 20, secured to the seat structure 3a by the plate 23, on which it is articulated substantially in its central longitudinal portion about its pivot axis A4.
  • This hook 20 is advantageously doubled, and it is possible to provide a pair of hooks 20 on each side of the seat.
  • the pair of hooks 20 has heads 20a in the locking position of a first locking pin 6 integral with a part 11 in the shape of a square, a branch is secured to the lower end of the structure 2a of the backrest frame and the other leg is articulated relative to the seat structure 3a around the lower axis Al.
  • the locking hook 20 is doubled to allow locking of the backrest in the normal position of use and to ensure its retention in the folded position. This will be done through the connecting rod 21, as will now be described.
  • the rod 21 is articulated in its middle about the axis A3 integral with the seat structure 3a as shown in Figure 8.
  • This rod 21 has a light 8b at its end opposed to that 21a cooperating with the double hook 20.
  • this light 8b slides around a second pin 8a secured to the backrest frame, being fixed on the piece 11 in the form of a square.
  • the structure of the medallion is held in position by the pressure of the torsion spring 10, shown in FIG. 6, and by a stop angular.
  • the structure 2a of the backrest frame is locked, at least on one lateral side of the seat structure 3a, by the double hook 20 and by the second locking pin 8a of the connecting rod 21.
  • An angle stop 22 at each end of the Al axis limits the angular displacement of the structure 2a of the backrest frame.
  • the operation of the retraction of the backrest is as follows:
  • the initiation of the retraction movement from the normal position of use as a passenger seat to the retracted position is effected by means of an unlocking means, for example as an unlocking handle 4, visible in Figures 4 and 6, the upper part of at least one arm 2 of the backrest frame.
  • This handle 4 disengages the double hook 20 from the first pin 6 by means of a cable 5, connected to the end of the double hook 20 opposite the heads 20a thereof. Pulling the cable 5 on this end pivots the double hook 20 about its median axis A4, which releases the first locking pin 6 from contact with the corresponding head 20a of the double hook 20.
  • the handle 4 can also release the medallion structure of the backrest frame by a kinematic offset axis and the return of the torsion spring exerted on this medallion, the torsion spring having been shown in Figure 6.
  • the rod 21 is rotated about its axis of pivoting A3 through its light 8b in which slides the second pin 8a drive belonging to the part 11.
  • the link 21 pivots in the direction of the arrow F2 about its pivot axis A3.
  • the medallion structure la advantageously extends vertically, at least with a reduced positive or negative angle, for example less than plus or minus 20 °, with respect to the vertical passing through the axis of articulation of said structure la relative to the frame structure 2a of the folder.
  • Figure 9 shows a cabin H of a motor vehicle with a baby seat SB, placed at the rear of the passenger compartment in a passenger seat whose backrest was completely retracted according to the present invention.
  • This passenger seat is the middle seat of the rear seat, but it could also be a right or left rear seat.
  • the baby seat SB is placed back to the road, that is to say in the opposite direction of circulation, as it is customary.
  • This arrangement obtained with a backrest according to the present invention is very advantageous and meets the restraint needs of the baby seat SB during braking or frontal or rear impact as well as for side impacts. This is achieved by the natural embedding of the baby seat SB between the arms 2 of the backrest that prevent lateral movement of the seat. Similarly, the back of the SB baby seat, the medallion 1 retracted also plays the role of border and limits any movement to the front of the vehicle SB baby seat.
  • FIG. 9 shows a baby seat SB placed in row two of the vehicle
  • the present invention may nevertheless relate to a booster placed in a row two of this vehicle and / or a baby seat placed in a row of the vehicle in front of it. this.
  • Figure 10 shows in particular the method of attachment of the baby seat SB with the back of a seat according to the present invention.
  • the baby seat SB carries two arches 13 on its rear face extending substantially over the entire length thereof. These arches 13 allow the passage of a strap 10 which, passing around the support supports- head 7, secures the upper and middle parts of the baby seat SB with the passenger seat back via the medallion 1 locked in the retracted position. A fixation may also be provided when the medallion 1 has an isofix fixation 16 as shown in FIG. 6.
  • the lower part of the baby seat SB is also secured to the medallion 1 by hooks 9a whose respective head 9b cooperates with the isofix fasteners 9 shown in FIG.
  • a baby seat is not limiting for the present invention and that it may be a booster.
  • the fixing system substantially different in the latter case, is the one usually used for such a booster.
  • the child seat is a baby seat SB as shown in Figures 9 and 10, this seat being held by the seat belt and the isofix fasteners carried by the medallion 1 for shocks front and rear, being embedded between the arms 2 of the folder, for side impacts.
  • isofix bindings are used to hold the seat or booster seat, these fasteners being easily accessible after retracting the medallion and seat back frame.
  • Such a seat baby or child received in the space, substantially shaped bowl, formed inside the frame of the folder allows a reduction in the size of it.
  • this compacted position allows the disengagement and respect of the driver's field of vision, ie the 180 ° vision for a baby seat placed in row one of the vehicle on the passenger seat, or rear view mirror vision for a baby seat placed in row two in the vehicle.
  • the passenger seat according to the present invention with such a medallion and such retractable backrest frame can also be used regardless of the attachment of a baby seat or child.
  • the medallion of the front passenger seat is rotated as shown in Figure 2
  • this arrangement provides a panoramic front view of the rear seats, releasing from the field of vision the headrest and the medallion of the seat back.
  • a larger space is provided in front of a tier two seat behind a front passenger seat whose medallion was retracted according to Figure 2.
  • This space can be converted into relaxation space, for example serving as a footstool or storage space. In the latter case, long loads can be more safely accommodated in the vehicle from the rear of the vehicle and through the empty file frame to extend to the dashboard.
  • Such a seat with retractable backrest according to the present invention also keeps valid all existing seat settings, they being mechanically or electrically controlled.
  • the backrest adjustment can thus remain traditional and its locking and control, which represents a simplification of the adaptations to be undertaken for the use of such a seat according to the present invention.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention relates to a stowable seat for an automobile, to a method for stowing said seat, and to an automobile including at least one such seat. Said seat is characterized in that the respective pivoting means (A2, 10, A1, 11) of the center piece (1) and of the frame (2) are capable of pivoting so that the major portion of the center piece is in front of a vertical plane containing the front end of the seating portion (3) when the frame (2) is pivoted so as to be folded back towards the latter. The invention can be used in the field of automobiles.

Description

« Siège escamotable pour véhicule automobile, procédé d'escamotage de ce siège et véhicule automobile comprenant au moins un tel siège» "Retractable seat for a motor vehicle, method for retracting this seat and a motor vehicle comprising at least one such seat"
La présente invention concerne, d'une façon générale, un siège escamotable pour véhicule automobile, un procédé d'escamotage de ce siège et un véhicule automobile comprenant au moins un tel siège. Plus particulièrement, la présente invention concerne un siège présentant, en partant d'une position d'utilisation normale en tant que siège passager, les possibilités d'une position d'escamotage partiel ainsi que d'une position d'escamotage complète. Le siège du véhicule automobile peut être un siège passager avant ou arrière et la position d'escamotage complète est particulièrement bien adaptée pour la réception d'un siège bébé ou d'un rehausseur pour enfant.The present invention relates, in general, a retractable seat for a motor vehicle, a method of retraction of this seat and a motor vehicle comprising at least one such seat. More particularly, the present invention relates to a seat having, from a position of normal use as a passenger seat, the possibilities of a partial retraction position as well as a full retraction position. The seat of the motor vehicle can be a front or rear passenger seat and the complete retracted position is particularly suitable for receiving a baby seat or a booster child.
L'invention va être présentée ci-après en prenant deux exemples qui ne sont pas limitatifs.The invention will be presented below by taking two examples that are not limiting.
Pour le premier exemple, dans l'habitacle d'un véhicule automobile, lorsque le siège passager avant est inoccupé, le volume de ce siège s'impose inutilement dans l'habitacle intérieur. Ainsi, lors d'un trajet, si un passager occupe la banquette arrière, le dossier et l'appui tête du siège avant inoccupé gênent considérablement son champ de vision. De plus, si ce passager souhaite disposer de plus d'espace vers l'avant, par exemple pour allonger ses jambes, il n'est pas possible actuellement de libérer cet espace devant ce passager sans à avoir à escamoter complètement le siège avant situé devant lui, ce qui est une opération demandant un certain temps de manipulation, voire même un arrêt du véhicule le temps de l'escamotage. Ceci vaut aussi pour le transport de charges longues dans l'habitacle du véhicule. Il conviendrait donc d'élaborer un siège qui soit facilement, au moins en partie, escamotable .For the first example, in the passenger compartment of a motor vehicle, when the front passenger seat is unoccupied, the volume of this seat is required unnecessarily in the interior passenger compartment. Thus, during a trip, if a passenger occupies the rear seat, the backrest and the headrest of the unoccupied front seat greatly hinder his field of vision. In addition, if the passenger wants more space forward, for example to extend his legs, it is not currently possible to release this space in front of the passenger without having to completely retract the front seat in front him, which is an operation requiring a certain time of handling, or even a stop of the vehicle the time of the retraction. This also applies to the transport of long loads in the passenger compartment of the vehicle. It should therefore be a seat that is easily, at least in part, retractable.
Le second exemple est relatif à l'apport optionnel d'un siège enfant. Aujourd'hui, la réglementation interdit aux jeunes enfants de s'asseoir à même la banquette ou sur les sièges arrière. Il est, de plus, exigé que les bébés de 0 à 9 Kg doivent être placés, de dos à la route, dans des sièges adaptés.The second example relates to the optional contribution of a child seat. Today, the regulations prohibit young children from sitting on the bench or in the rear seats. It is also required that babies from 0 to 9 kg should be placed back to the road in suitable seats.
Il est ainsi connu de positionner le bébé face au dossier du siège passager ou de la banquette arrière. Une telle disposition gêne cependant la convivialité dans l'habitacle et rend l'installation du bébé dans son siège malaisée. Les petits enfants sont, en général, installés dans des sièges additionnels à ceintures embarqués et fixés sur le véhicule par un système de fixation appelé isofix. Pour des enfants plus grands, il est connu d'utiliser un rehausseur d'assise disposé sur une place arrière et fixé par la sangle d'une ceinture de sécurité présente dans le véhicule. II est fréquent que la solidarisation du siège enfant avec le siège du véhicule ne se fasse que par son sanglage sur la banquette arrière ou le siège avant, ceci à l'aide de la ceinture de sécurité. L'absence d'un autre mode de solidarisation entre le siège enfant et le siège du véhicule pose des problèmes de sécurité en cas de freinage puissant ou de virage serré puisque le siège enfant pourra avoir tendance à glisser dans ces conditions .It is thus known to position the baby facing the back of the passenger seat or the rear seat. Such a provision, however, hinders the user-friendliness in the cabin and makes the installation of the baby in his seat difficult. Small children are, in general, installed in additional seat belts embedded and fixed on the vehicle by a fixing system called isofix. For older children, it is known to use a seat booster placed in a rear seat and fixed by the strap of a seat belt present in the vehicle. It is common that the securing of the child seat with the vehicle seat is done only by its strapping on the rear seat or the front seat, this with the help of the seat belt. The absence of another mode of connection between the child seat and the vehicle seat poses safety problems in case of strong braking or tight turn as the child seat may tend to slip under these conditions.
De plus, le siège enfant est souvent laissé à demeure dans la voiture pour éviter son installation répétitive, et il peut donc gêner lors du transport de passagers ou d'objets encombrants, étant donné qu'il vient en superposition du siège passager qui le supporte.In addition, the child seat is often left in the car to avoid repetitive installation, and it can interfere with the transport of passengers or bulky objects, since it is superimposed on the passenger seat that supports it .
Le document JP-A-7/232580 décrit un siège pour un véhicule automobile avec un cadre de dossier entourant une partie centrale dite médaillon. Ce médaillon est pliable en deux parties pour former un siège bébé. Le pliage se fait soit vers l'arrière du siège quand le cadre n'est pas rabattu vers l'assise, soit vers l'avant quand le cadre est rabattu. Cet arrangement ne permet pas de libérer un espace à travers le dossier du siège et requiert des mécanismes compliqués d'articulation et de coulissement pour le médaillon afin d'assurer le pliage de celui-ci. En plus, quand le dossier est rabattu, le siège n'est pas dans une position compacte, étant donné que le cadre du dossier et le médaillon occupent une place importante au dessus de l'assise.JP-A-7/232580 discloses a seat for a motor vehicle with a backrest frame surrounding a central portion said medallion. This medallion is foldable in two parts to form a baby seat. The folding is done towards the back of the seat when the frame is not folded towards the seat, or towards the front when the frame is folded down. This arrangement does not release a space through the seat back and requires complicated mechanisms of articulation and sliding for the medallion to ensure the folding thereof. In addition, when the backrest is folded down, the seat is not in a compact position, since the backrest frame and the medallion occupy an important place above the seat.
Le document JP-A-8183378 décrit un siège avec un médaillon de dossier pouvant être placé après pivotement au dessus et à distance de son assise afin de dégager un passage à travers le dossier. Ce document ne décrit cependant pas un siège avec une position d'escamotage comprenant l'étape de rabattement du dossier contre 1 'assise .JP-A-8183378 discloses a seat with a backrest medallion that can be placed after pivoting above and away from its seat to clear a passage through the backrest. However, this document does not describe a seat with a retraction position comprising the step of folding the backrest against the seat.
La présente invention a pour but de concevoir un siège passager qui, en plus de dégager de l'espace lors de son escamotage quand il est procédé à un escamotage partiel de celui-ci, puisse former une position d'escamotage complète et compacte, offrant un espace d'accueil à l'intérieur du dossier ainsi replié pouvant être utilisé pour le positionnement d'un siège auxiliaire du type siège bébé ou rehausseur.The present invention aims to design a passenger seat which, in addition to clear space when retracted when it is carried out a partial retraction thereof, can form a complete retraction position and compact, offering a reception area inside the folded backrest that can be used for the positioning of an auxiliary seat of the baby seat or booster seat type.
A cet effet, l'invention a pour objet un procédé d'escamotage partiel d'un dossier de siège de véhicule automobile, ce siège comprenant une assise, un dossier composé d'une partie centrale dite médaillon s 'étendant dans la longueur de celui-ci et un cadre entourant ledit médaillon sur au moins une partie de sa longueur, ledit procédé comprenant une étape d'escamotage d'une majeure partie du médaillon hors du plan formé par le cadre du dossier, plaçant ladite majeure partie au dessus et à distance de l'assise, caractérisé en ce que cette étape étant simultanée à ou suivie d'une étape de rabattement du cadre du dossier vers l'assise, la majeure partie du médaillon se trouvant devant le plan vertical contenant l'extrémité avant de l'assise à la fin de ce rabattement.For this purpose, the subject of the invention is a method of partial retraction of a motor vehicle seat back, this seat comprising a seat, a backrest consisting of a central part called a medallion extending in the length of that and a frame surrounding said medallion over at least a portion of its length, said method comprising a step of retracting a major part of the medallion out of the plane formed by the backrest frame, placing said major part above and below distance of the seat, characterized in that this step being simultaneous with or followed by a step of folding the frame of the backrest towards the seat, most of the medallion lying in front of the vertical plane containing the front end of the seat at the end of this drawdown.
L'invention concerne également un siège de véhicule automobile, comprenant une assise, un dossier composé d'une partie centrale dite médaillon s 'étendant dans la longueur de celui-ci et un cadre entourant ledit médaillon sur au moins une partie de sa longueur, ledit médaillon présentant des moyens de pivotement par rapport au cadre, ledit cadre présentant des moyens de pivotement par rapport à l'assise, caractérisé en ce que les moyens de pivotement respectifs du médaillon et du cadre sont aptes à effectuer leur pivotement pour que la majeure partie du médaillon se trouve devant le plan vertical contenant l'extrémité avant de l'assise, quand le cadre est pivoté pour être rabattu vers celle-ci.The invention also relates to a motor vehicle seat, comprising a seat, a backrest consisting of a central portion said medallion extending in the length thereof and a frame surrounding said medallion over at least a part of its length, said medallion having means for pivoting relative to the frame, said frame having means for pivoting relative to the seat, characterized in that the respective pivoting means of the medallion and the frame are adapted to perform their pivoting so that the major part of the medallion is in front of the vertical plane containing the front end of the seat, when the frame is rotated to be folded towards it.
Selon des caractéristiques additionnelles de la présente invention :According to additional features of the present invention:
- les moyens de pivotement du médaillon comprennent un ressort de torsion monté sur l'axe de pivotement exerçant une force de rappel du médaillon dans sa position d'escamotage partiel,the means for pivoting the medallion comprise a torsion spring mounted on the pivot axis exerting a restoring force of the medallion in its partially retracted position,
- le médaillon s'étend sensiblement parallèle à l'assise à la fin de son pivotement, quand le cadre reste sensiblement inchangé en position, - le siège présente un appui-tête fixé sur la partie haute du médaillon,- The medallion extends substantially parallel to the seat at the end of its pivoting, when the frame remains substantially unchanged in position, - the seat has a headrest fixed on the upper part of the medallion,
- quand le cadre du dossier est pivoté pour être rabattu vers l'assise, celui-ci forme un espace interne en forme de cuvette pouvant recevoir un siège bébé ou un rehausseur pour enfant,- When the backrest frame is pivoted to be folded towards the seat, it forms an internal space in the form of bowl that can receive a baby seat or booster for child,
- aux moyens de pivotement du médaillon et/ou du cadre du dossier sont associés des moyens de blocage en position en position normale ou escamotée et/ou des moyens de déverrouillage desdits moyens de blocage, - le médaillon présente, d'une part, comme moyen de blocage en position d'utilisation normale un premier crochet coopérant avec une barre solidaire de l'assise du siège, le médaillon étant rappelé dans sa position d'escamotage partiel par un moyen de rappel, le moyen de déverrouillage étant alors commun avec celui du cadre du dossier et, d'autre part comme moyen de blocage en position escamotée une butée angulaire,the means for pivoting the medallion and / or the backrest frame are associated with locking means in position in the normal or retracted position and / or unlocking means for the said locking means; the medallion has, on the one hand, as locking means in normal use position a first hook cooperating with a bar integral with the seat of the seat, the medallion being recalled in its partially retracted position by a return means, the unlocking means then being common with that of the backrest frame and, secondly as locking means in the retracted position an angular stop,
- le cadre du dossier présente, comme moyen de blocage en position d'utilisation normale, un premier pion solidaire du cadre et coopérant avec un second crochet solidaire de l'assise, ce second crochet étant avantageusement double pour former le moyen de blocage en position escamotée du cadre en coopérant avec une bielle entraînée en pivotement par ledit cadre, la bielle présentant une lumière coulissant autour d'un second pion solidaire du cadre, cette bielle se bloquant dans le double crochet pour assurer le blocage en position escamotée,- The backrest frame has, as locking means in normal use position, a first pin secured to the frame and cooperating with a second hook secured to the seat, this second hook being advantageously double to form the locking means in position retracted from the frame by cooperating with a connecting rod pivoted by said frame, the connecting rod having a sliding light around a second pin integral with the frame, this connecting rod locking in the double hook to ensure the locking in the retracted position,
- le moyen de déverrouillage du cadre du dossier est constitué d'une poignée actionnant un câble faisant pivoter le second crochet de blocage du premier pion, libérant ainsi provisoirement le cadre tandis que le médaillon est rappelé en position escamotée, ou libérant ainsi le cadre et le médaillon pour les mettre en position d'escamotage complet.- The unlocking means of the backrest frame consists of a handle actuating a cable pivoting the second locking hook of the first pin, thus temporarily releasing the frame while the locket is recalled in the retracted position, or releasing the frame and the medallion to put them in complete retraction position.
L'invention concerne enfin un véhicule automobile, caractérisé en ce qu'il comprend un tel siège passager ou un siège dont le dossier est escamotable selon un tel procédé .The invention finally relates to a motor vehicle, characterized in that it comprises such a passenger seat or a seat whose backrest is retractable by such a method.
L'invention va maintenant être décrite plus en détail mais de façon non limitative en regard des figures annexées, dans lesquelles :The invention will now be described in more detail but in a nonlimiting manner with reference to the appended figures, in which:
- la figure 1 est une représentation schématique d'un siège avant passager selon l'invention, le dossier de ce siège étant en position normale d'utilisation, - la figure 2 est une représentation schématique d'un siège avant passager selon l'invention, le dossier de ce siège étant en position d'escamotage partiel, - la figure 3 est une représentation schématique d'un siège avant passager selon l'invention, le dossier de ce siège étant en position d'escamotage complet,FIG. 1 is a schematic representation of a front passenger seat according to the invention, the back of this seat being in the normal use position; FIG. 2 is a schematic representation of a front passenger seat according to the invention; , the back of this seat being in partial retraction position, FIG. 3 is a diagrammatic representation of a front passenger seat according to the invention, the back of this seat being in full retraction position,
- la figure 4 est une vue de trois quart avant en perspective d'un siège selon l'invention, représenté en position normale d'utilisation,FIG. 4 is a three-quarter front view in perspective of a seat according to the invention, represented in the normal position of use,
- la figure 5 est une vue arrière en perspective d'un siège selon l'invention, représenté en position complète d'escamotage, - la figure 6 est une vue de trois quart avant en perspective de la structure du siège de l'invention en position normale d'utilisation, la figure 7 est une vue agrandie latérale en perspective montrant la partie inférieure du dossier du siège de l'invention en position normale d'utilisation, ainsi que ses moyens de solidarisation avec l'assise du siège,FIG. 5 is a perspective rear view of a seat according to the invention, shown in a complete retracted position, FIG. 6 is a three-quarter front perspective view of the seat structure of the invention in FIG. normal position of use, Figure 7 is an enlarged perspective side view showing the lower part of the seat back of the invention in the normal position of use, and its securing means with the seat cushion,
- la figure 8 est une vue latérale de la structure du siège de l'invention, le dossier de ce siège étant en position escamotée complète, la figure 9 est une vue de dessus en perspective de l'habitacle d'un véhicule avec un siège selon l'invention portant un siège bébé dans son espace interne sécurisé, - la figure 10 est une vue latérale en perspective du siège selon l'invention portant dans son espace interne sécurisé un siège bébé.FIG. 8 is a side view of the structure of the seat of the invention, the back of this seat being in full retracted position, FIG. 9 is a top view in perspective of the passenger compartment of a vehicle with a seat. according to the invention carrying a baby seat in its secure internal space, - Figure 10 is a side view in perspective of the seat according to the invention carrying in its secure internal space a baby seat.
La figure 1 montre une coupe d'un siège avant de véhicule automobile composé d'un dossier, comprenant deux parties 1 et 2, ainsi qu'une assise 3. La première partie du dossier est constituée d'un médaillon 1, s 'étendant dans la longueur du dossier et formant la partie centrale de celui-ci. Le médaillon 1 est entouré sur chacun de ses côtés longitudinaux respectivement par un bras 2, ces deux bras 2 formant le cadre du dossier, ce qui sera mieux vu à la figure 4. Le médaillon 1 central est articulé, par rapport aux bras 2 formant le cadre du dossier, en sa partie haute autour d'un axe supérieur A2, s 'étendant transversalement au dossier. Le cadre 2 du dossier est lui-même articulé autour d'un axe inférieur Al par rapport à l'assise 3, cet axe inférieur Al s 'étendant aussi transversalement au dossier. Ainsi, le médaillon 1 fait entretoise par son axe supérieur A2 entre les deux bras 2 constituant le cadre du dossier. Ce médaillon articulé peut avantageusement reprendre sur son axe supérieur A2, les fixations et réglages de l'appui tête 7, celui-ci devenant ainsi solidaire dudit médaillon 1.Figure 1 shows a section of a front seat of a motor vehicle consisting of a backrest, comprising two parts 1 and 2, and a seat 3. The first part of the folder consists of a medallion 1, extending in the length of the backrest and forming the central part of it. The medallion 1 is surrounded on each of its longitudinal sides respectively by an arm 2, these two arms 2 forming the frame of the folder, which will be better seen in Figure 4. The central medallion 1 is articulated, relative to the arms 2 forming the backrest frame, at its upper part about an upper axis A2, extending transversely to the backrest. The frame 2 of the backrest is itself articulated around a lower axis Al with respect to the seat 3, this lower axis Al also extending transversely to the backrest. Thus, the medallion 1 is spacer by its upper axis A2 between the two arms 2 constituting the frame of the folder. This articulated medallion may advantageously resume on its upper axis A2, the fixings and adjustments of the head support 7, the latter thus becoming integral with said medallion 1.
La figure 2 montre comment, en gardant le cadre 2 du dossier du siège essentiellement dans sa position déployée d'utilisation normale, dans le cas d'une utilisation de chargement local ou pour une charge longue, le médaillon 1 seul peut être pivoté, d'un seul tenant, jusqu'à une position sensiblement horizontale libérant ainsi un passage à travers les deux bras 2 du dossier formant le cadre. Cette position est la position d'escamotage partiel.FIG. 2 shows how, keeping the frame 2 of the seat back essentially in its deployed position of normal use, in the case of a use of local loading or for a long load, the medallion 1 alone can be rotated, d one piece, to a substantially horizontal position thus releasing a passage through the two arms 2 of the backrest forming the frame. This position is the partial retraction position.
Ainsi, il est possible de faire pivoter, d'un seul tenant, le médaillon 1 autour de son axe supérieur A2 d'une position sensiblement verticale, pour laquelle il est entouré par le cadre 2 du dossier, dans une position sensiblement horizontale, dans laquelle il est sorti du plan du cadre 2 du dossier et placé au dessus de l'assise 3 à distance de celle-ci. Cela permet de libérer de l'espace au dessus de l'assise du siège, notamment pour l'introduction d'objets à travers le cadre 2 du dossier, ces objets s 'étendant à partir de l'arrière de ce siège, par exemple des sièges arrière, jusqu'à la planche de bord P. L'escamotage peut être initié par un mouvement de déverrouillage et de basculement du dossier vers l'avant, le médaillon 1 de dossier se trouvant alors entraîné automatiquement en rotation, avantageusement d'environ 90°, donc dans une position escamotée où il s'étend sensiblement horizontalement. Ceci peut être obtenu grâce au déverrouillage synchronisé du médaillon 1 et du cadre 2 du dossier et à une force d'entraînement mécanique appliquée sur ce médaillon 1, par exemple due à un ressort de torsion intégré à l'axe A2, ce qui sera mieux vu à la figure 6.Thus, it is possible to rotate, in one piece, the medallion 1 around its upper axis A2 of a substantially vertical position, for which it is surrounded by the frame 2 of the folder, in a substantially horizontal position, in which he left the plane of the frame 2 of the folder and placed above the seat 3 at a distance from it. This frees up space above the seat cushion, especially for the introduction of objects through the frame 2 of the folder, these objects extending from the rear of this seat, for example from the rear seats to the dashboard P. The retraction can be initiated by an unlocking movement and tilting of the backrest forward, the medallion 1 folder then being driven automatically rotating, preferably about 90 °, so in a retracted position where it extends substantially horizontally. This can be achieved thanks to the synchronized unlocking of the medallion 1 and the frame 2 of the backrest and a mechanical drive force applied to this medallion 1, for example due to a torsion spring integrated in the axis A2, which will be better seen in Figure 6.
Le pivotement du médaillon 1 autour de son axe A2 est avantageusement limité par une butée de rotation pour obtenir une position du médaillon qui gêne le moins possible le passage d'objets de l'arrière vers l'avant du véhicule au dessus de l'assise du siège et à travers le cadre du dossier, cette position étant avantageusement horizontale comme mentionné précédemment.The pivoting of the medallion 1 about its axis A2 is advantageously limited by a rotation stop to obtain a position of the medallion which hinders as little as possible the passage of objects from the rear to the front of the vehicle above the seat seat and through the frame of the folder, this position being advantageously horizontal as mentioned above.
La figure 3 montre l'escamotage complet du dossier du siège du véhicule. Dans la position d'escamotage partiel, le médaillon 1 est pivoté par rapport au cadre du dossier, formé des bras 2 entourant le médaillon 1 sur sa longueur, autour de l'axe supérieur A2. Après cet escamotage partiel ou simultanément à celui-ci, le cadre du dossier, par ses bras 2 articulés avec l'assise 3 autour de l'axe inférieur Al, est pivoté autour de cette assise 3 en étant rabattu sensiblement contre elle, en position approximativement horizontale.Figure 3 shows the complete retraction of the seat back of the vehicle. In the partial retraction position, the medallion 1 is pivoted relative to the frame of the backrest, formed by the arms 2 surrounding the medallion 1 along its length, around the upper axis A2. After this partial retraction or simultaneously with it, the frame of the backrest, by its arms 2 articulated with the seat 3 around the lower axis Al, is pivoted around the seat 3 being folded substantially against it, in position approximately horizontal.
Le médaillon 1 s'étend devant le plan contenant la partie avant de l'assise 3 du siège, avantageusement presque verticalement, du moins avec un faible angle par rapport à la verticale, devant cette partie avant. Dans cette position, le cas échéant, seul l'appui-tête 7 est la partie solidaire du médaillon 1 qui se situe au dessus du cadre de dossier formé des bras 2.The medallion 1 extends in front of the plane containing the front part of the seat 3 of the seat, preferably almost vertically, at least with a small angle with respect to the vertical, in front of this front part. In this position, where appropriate, only the headrest 7 is the integral part of the medallion 1 which is located above the backrest frame formed by the arms 2.
Ainsi la présente invention concerne un procédé d'escamotage partiel d'un dossier de siège de véhicule automobile, ce siège comprenant une assise 3, un dossier composé d'une partie centrale dite médaillon 1 s 'étendant dans la longueur de celui-ci et un cadre 2 entourant ledit médaillon 1 sur au moins une partie de sa longueur, ledit procédé comprenant une étape d'escamotage d'une majeure partie du médaillon 1 hors du plan formé par le cadre 2 du dossier, plaçant ladite majeure partie au dessus et à distance de l'assise 3, caractérisé en ce que cette étape est simultanée à ou suivie d'une étape de rabattement du cadre 2 du dossier vers l'assise 3, la majeure partie du médaillon 1 se trouvant devant le plan vertical contenant l'extrémité avant de l'assise 3 à la fin de cette seconde étape.Thus, the present invention relates to a method of partial retraction of a motor vehicle seat back, this seat comprising a seat 3, a backrest composed of a central part called medallion 1 extending in the length thereof and a frame 2 surrounding said medallion 1 over at least a part of its length, said method comprising a step of retraction of a major part of the medallion 1 out of the plane formed by the frame 2 of the backrest, placing said major part above and at a distance from the seat 3, characterized in that this step is simultaneous with or followed by a step of folding the frame 2 of the backrest towards the seat 3, the major part of the medallion 1 being in front of the vertical plane containing the front end of the seat 3 at the end of this second stage.
Il est clair que le procédé d'escamotage partiel peut être indépendant du procédé d'escamotage complet avec rabattement du cadre du dossier vers l'assise, cet escamotage partiel prenant place sans que la position du cadre 2 soit, en fin d'escamotage partiel, modifiée par rapport à l'assise 3 mais seulement provisoirement modifiée en début d'escamotage partiel pour initier celui-ci comme on le verra par la suite.It is clear that the method of partial retraction may be independent of the complete retraction process with folding the frame from the back to the seat, this partial retraction taking place without the position of the frame 2 is at the end of partial retraction. , modified compared to the seat 3 but only temporarily modified at the beginning of partial retraction to initiate it as will be seen later.
Cependant, le mode de réalisation préféré de l'invention prévoit un dossier susceptible d'accomplir l'escamotage partiel et/ou l'escamotage complet.However, the preferred embodiment of the invention provides a folder capable of performing partial retraction and / or complete retraction.
L'invention concerne aussi un siège de véhicule automobile, comprenant une assise 3, un dossier composé d'une partie centrale dite médaillon 1 s 'étendant dans la longueur de celui-ci et un cadre 2 entourant ledit médaillon 1 sur au moins une partie de sa longueur, ledit médaillon 1 présentant des moyens de pivotement A2 par rapport au cadre 2, ledit cadre 2 présentant des moyens de pivotement Al par rapport à l'assise 3, caractérisé en ce que les moyens de pivotement A2, Al respectifs du médaillon 1 et du cadre 2 sont aptes à effectuer leur pivotement pour que la majeure partie du médaillon 1 se trouve devant le plan vertical contenant l'extrémité avant de l'assise 3, quand le cadre 2 est pivoté pour être rabattu vers celle-ci.The invention also relates to a motor vehicle seat, comprising a seat 3, a backrest consisting of a central portion said medallion 1 extending in the length thereof and a frame 2 surrounding said medallion 1 on at least a portion its length, said medallion 1 having pivoting means A2 relative to the frame 2, said frame 2 having means for pivoting Al relative to the seat 3, characterized in that the pivoting means A2, Al respectively of the medallion 1 and frame 2 are able to perform their pivoting so that most of the medallion 1 is in front of the vertical plane containing the front end of the seat 3, when the frame 2 is pivoted to be folded towards it.
Les figures 4 et 5, montrant respectivement le siège avec son dossier en position normale d'utilisation et en position d'escamotage complet, permettent de mieux différencier les diverses parties du dossier montrées schématiquement aux figures 1 à 3.FIGS. 4 and 5, respectively showing the seat with its backrest in the normal position of use and in full retraction position, allow to better differentiate the various parts of the folder shown schematically in Figures 1 to 3.
Le médaillon 1 est entouré sur chacun de ses côtés longitudinaux, essentiellement sur toute leur longueur par un bras 2 respectif du cadre de dossier et est articulé autour de l'axe supérieur A2 par rapport à celui-ci, l'appui-tête 7 étant avantageusement rendu solidaire de ce médaillon 1. Le cadre du dossier, formé des bras 2, est articulé autour de l'axe inférieur Al par rapport à l'assise 3 pour effectuer un basculement vers l'avant vers celle-ci. Cette assise 3 est fixée à la caisse du véhicule, par l'intermédiaire de supports 15 munis avantageusement de glissières afin d'assurer un réglage longitudinal du siège.The medallion 1 is surrounded on each of its longitudinal sides, essentially over their entire length by a respective arm 2 of the backrest frame and is articulated around the upper axis A2 relative thereto, the headrest 7 being advantageously secured to this medallion 1. The frame of the backrest, formed of the arms 2, is articulated around the lower axis A1 relative to the seat 3 to perform a tilting forward towards it. This seat 3 is fixed to the vehicle body, through supports 15 advantageously provided with slides to ensure a longitudinal adjustment of the seat.
Avantageusement, cette assise 3 peut être complétée d'un réglage de hauteur et de site, notamment par utilisation de parallélogrammes, de manière connue en soi . A la figure 4, au moins un des bras 2 du cadre du dossier est muni d'une poignée de déverrouillage 4, dont le fonctionnement sera expliqué ultérieurement.Advantageously, this seat 3 can be supplemented with a height and site adjustment, in particular by using parallelograms, in a manner known per se. In Figure 4, at least one arm 2 of the backrest frame is provided with an unlocking handle 4, the operation of which will be explained later.
Comme il est montré à la figure 5, en position d'escamotage complet du dossier du siège, du fait du pivotement du médaillon 1 hors du cadre du dossier, un espace E interne est créé entre les bras 2. Cet espace peut servir avantageusement à la réception d'un siège bébé ou d'un rehausseur comme on le verra aux figures 9 et 10. La figure 5 montre aussi une pièce 11 en forme d'équerre qui, d'une part, comprend un pion de verrouillage 6 solidaire du cadre 2 du dossier et articulée par rapport à l'assise 3, d'autre part. Cette pièce 11 sert au pivotement du cadre 2 du dossier par rapport à l'assise 3 et son fonctionnement sera expliqué ultérieurement.As shown in FIG. 5, in the position of complete retraction of the seat back, because of the pivoting of the medallion 1 outside the frame of the backrest, an internal space E is created between the arms 2. This space can serve advantageously to the reception of a baby seat or a booster seat as will be seen in FIGS. 9 and 10. FIG. 5 also shows a square-shaped piece 11 which, on the one hand, comprises a locking peg 6 secured to the frame 2 of the folder and articulated relative to the seat 3, on the other hand. This part 11 serves to pivot the frame 2 of the backrest relative to the seat 3 and its operation will be explained later.
Les figures 6 et 7 montrent essentiellement les moyens de verrouillage du médaillon 1 avec le cadre du dossier formé des bras 2. Accessoirement, la figure 6 montre les manchons 17 de réception des tiges de l'appui- tête de même qu'une fixation isofix 16 pouvant servir à la fixation d'un siège bébé comme il sera vu ultérieurement aux figures 9 et 10.FIGS. 6 and 7 essentially show the locking means of the medallion 1 with the frame of the 2. Also, FIG. 6 shows the sleeves 17 for receiving the rods of the headrest, as well as an isofix fastener 16 that can be used for fixing a baby seat, as will be seen later in the figures. 9 and 10.
En position normale d'utilisation du siège montrée aux figures 6 et 7, le médaillon, présentant une structure la, est fixé par rapport à l'assise par l'intermédiaire de crochets 12, situés dans la partie basse de la structure la du médaillon. Ces crochets 12 se verrouillent sur la barre 18 de la structure d'assise 3a, qui en position d'utilisation normale du siège retient la structure 2a de cadre du dossier.In the normal position of use of the seat shown in FIGS. 6 and 7, the medallion, having a structure 1a, is fixed with respect to the seat by means of hooks 12, situated in the lower part of the structure 1 of the medallion. . These hooks 12 are locked on the bar 18 of the seat structure 3a, which in normal use position of the seat retains the frame structure 2a of the backrest.
Avantageusement, le simple basculement du cadre du dossier autour de l'axe inférieur Al permet de libérer les crochets 12 du médaillon de leur fixation sur la barre 18. Un ressort de torsion 10, disposé autour de l'axe supérieur A2, pousse la structure la de médaillon dans sa position d'escamotage à l'extérieur du cadre du dossier. Une butée de fin de course peut être prévue pour limiter le mouvement de pivotement de la structure la du médaillon par rapport à la structure 3a d'assise.Advantageously, the simple tilting of the backrest frame around the lower axis Al makes it possible to release the hooks 12 of the medallion from their attachment on the bar 18. A torsion spring 10, arranged around the upper axis A2, pushes the structure the medallion in its retracted position outside the backrest frame. An end stop may be provided to limit the pivotal movement of the structure of the medallion with respect to the structure 3a of seat.
Ainsi le médaillon peut être pivoté sans que le cadre de dossier soit sensiblement changé en position, celui-ci n'étant que déverrouillé et légèrement pivoté au début de l'opération d'escamotage partiel du médaillon pour initier celle-ci.Thus the medallion can be rotated without the backrest frame is substantially changed in position, it is only unlocked and slightly rotated at the beginning of the partial retraction operation of the medallion to initiate it.
Le blocage de la structure la de médaillon en position d'utilisation normale du siège se fera avantageusement manuellement afin de simplifier les mécanismes. La structure la du médaillon intègre avantageusement des fixations de type isofix 9 disposées autour d'un support 14, sous forme d'une barre transversale à la structure la du médaillon, disposée au dessus de la mi-hauteur de cette structure la.Locking the medallion structure in the normal use position of the seat will be advantageously manually to simplify the mechanisms. The structure of the medallion advantageously incorporates fasteners of the isofix type 9 arranged around a support 14, in the form of a crossbar to the structure of the medallion, disposed above the mid-height of this structure.
Comme il sera vu à la figure 7, la structure 2a de cadre de dossier, formé des bras, est maintenue en position par rapport à la structure 3a de l'assise par au moins un crochet 20, solidaire de la structure d'assise 3a par la plaque 23, sur laquelle il est articulé sensiblement dans sa partie longitudinale médiane autour de son axe de pivotement A4. Ce crochet 20 est avantageusement doublé, et il est possible de prévoir une paire de crochets 20 de chaque côté du siège.As will be seen in FIG. 7, the frame structure 2a of the backrest, formed by the arms, is maintained in position relative to the structure 3a of the seat by at least one hook 20, secured to the seat structure 3a by the plate 23, on which it is articulated substantially in its central longitudinal portion about its pivot axis A4. This hook 20 is advantageously doubled, and it is possible to provide a pair of hooks 20 on each side of the seat.
Dans la position d'utilisation normale du siège, la paire de crochets 20 présente des têtes 20a en position de blocage d'un premier pion de verrouillage 6 solidaire d'une pièce 11 en forme d'équerre, dont une branche est solidarisée à l'extrémité inférieure de la structure 2a du cadre du dossier et dont l'autre branche est articulée par rapport à la structure d'assise 3a autour de l'axe inférieur Al .In the position of normal use of the seat, the pair of hooks 20 has heads 20a in the locking position of a first locking pin 6 integral with a part 11 in the shape of a square, a branch is secured to the lower end of the structure 2a of the backrest frame and the other leg is articulated relative to the seat structure 3a around the lower axis Al.
Le crochet de verrouillage 20 est doublé pour permettre un verrouillage du dossier en position normale d'utilisation et pour assurer son maintien en position rabattue. Ceci sera fait par l'intermédiaire de la bielle 21, comme il va être maintenant décrit.The locking hook 20 is doubled to allow locking of the backrest in the normal position of use and to ensure its retention in the folded position. This will be done through the connecting rod 21, as will now be described.
Comme il sera vu particulièrement aux figures 7 et 8, la bielle 21, se trouvant en dessous de la pièce 11 en forme d'équerre à la figure 7 quand le dossier n'est pas rabattu, permet de verrouiller le dossier rabattu vers l'assise en créant une interface avec le crochet double 20. La bielle 21 est articulée en son milieu autour de l'axe A3 solidaire de la structure 3a d'assise comme montré à la figure 8. Cette bielle 21 présente une lumière 8b à son extrémité opposée à celle 21a coopérant avec le double crochet 20.As will be seen particularly in Figures 7 and 8, the rod 21, located below the piece 11 in the form of a square in Figure 7 when the folder is not folded, locks the folder folded back to the seated by creating an interface with the double hook 20. The rod 21 is articulated in its middle about the axis A3 integral with the seat structure 3a as shown in Figure 8. This rod 21 has a light 8b at its end opposed to that 21a cooperating with the double hook 20.
Pendant l'escamotage de la structure 2a du cadre du dossier, cette lumière 8b coulisse autour d'un second pion 8a solidaire du cadre du dossier, en étant fixé sur la pièce 11 en forme d'équerre. En position escamotée, la structure la du médaillon est maintenue en position par la pression du ressort de torsion 10, montré à la figure 6 et par une butée angulaire. Comme il est vu à la figure 8, la structure 2a de cadre de dossier est bloquée, au moins sur un côté latéral de la structure 3a d'assise, par le double crochet 20 et par le second pion de verrouillage 8a de la bielle 21. Une butée d'angle 22 présente à chaque extrémité de l'axe Al limite le débattement angulaire de la structure 2a du cadre du dossier.During the retraction of the structure 2a of the backrest frame, this light 8b slides around a second pin 8a secured to the backrest frame, being fixed on the piece 11 in the form of a square. In the retracted position, the structure of the medallion is held in position by the pressure of the torsion spring 10, shown in FIG. 6, and by a stop angular. As seen in FIG. 8, the structure 2a of the backrest frame is locked, at least on one lateral side of the seat structure 3a, by the double hook 20 and by the second locking pin 8a of the connecting rod 21. An angle stop 22 at each end of the Al axis limits the angular displacement of the structure 2a of the backrest frame.
Le fonctionnement de l'escamotage du dossier est le suivant : L'initiation du mouvement d'escamotage de la position normale d'utilisation en tant que siège passager à la position escamotée s'effectue par l'intermédiaire d'un moyen de déverrouillage, par exemple comme une poignée de déverrouillage 4, visible aux figures 4 et 6, à la partie supérieure d'au moins un des bras 2 du cadre du dossier. Cette poignée 4 désolidarise le double crochet 20 du premier pion 6 par l'intermédiaire d'un câble 5, relié à l'extrémité du double crochet 20 opposée aux têtes 20a de celui-ci. La traction du câble 5 sur cette extrémité fait pivoter le double crochet 20 autour de son axe A4 médian, ce qui libère le premier pion de verrouillage 6 du contact avec la tête 20a correspondante du double crochet 20.The operation of the retraction of the backrest is as follows: The initiation of the retraction movement from the normal position of use as a passenger seat to the retracted position is effected by means of an unlocking means, for example as an unlocking handle 4, visible in Figures 4 and 6, the upper part of at least one arm 2 of the backrest frame. This handle 4 disengages the double hook 20 from the first pin 6 by means of a cable 5, connected to the end of the double hook 20 opposite the heads 20a thereof. Pulling the cable 5 on this end pivots the double hook 20 about its median axis A4, which releases the first locking pin 6 from contact with the corresponding head 20a of the double hook 20.
Cela permet ainsi la mise en rotation de la structure 2a du cadre du dossier, formé par les bras, afin qu'elle soit rabattue vers la partie formant le siège de la structure d'assise 3a. La poignée 4 peut libérer également la structure la de médaillon du cadre du dossier par une cinématique d'axe décalé et le rappel du ressort de torsion s 'exerçant sur ce médaillon, ce ressort de torsion ayant été montré à la figure 6.This allows the rotation of the structure 2a of the frame of the backrest, formed by the arms, so that it is folded towards the portion forming the seat of the seat structure 3a. The handle 4 can also release the medallion structure of the backrest frame by a kinematic offset axis and the return of the torsion spring exerted on this medallion, the torsion spring having been shown in Figure 6.
Il est possible de prévoir une poignée sur chaque bras du cadre du dossier ainsi que le même mécanisme de déverrouillage de chaque côté latéral de la structure 3a d'assise.It is possible to provide a handle on each arm of the backrest frame and the same unlocking mechanism on each lateral side of the seat structure 3a.
Pour assurer un blocage en position d'escamotage, la bielle 21 est entraînée en rotation autour de son axe de pivotement A3 grâce à sa lumière 8b dans laquelle coulisse le second pion 8a d'entraînement appartenant à la pièce 11. Comme il est montré à la figure 8, quand la structure 2a de cadre du dossier et la pièce 11 en forme d'équerre pivotent dans le sens de la flèche Fl autour de l'axe inférieur Al de pivotement du dossier, la bielle 21 pivote dans le sens de la flèche F2 autour de son axe de pivotement A3. En fin de course d'escamotage, le second pion d'entraînement 8a de la bielle 21 a permis le basculement de cette dernière avec son extrémité 21a, opposée à celle portant la lumière 8b, se verrouillant dans les deux têtes 20a du double crochet 20. Cette bielle 21, ainsi verrouillée, maintient la structure 2a de cadre du dossier en position escamotée. Dans la position d'escamotage complet, montrée à la figure 8, la structure la de médaillon s'étend avantageusement verticalement, du moins avec un angle positif ou négatif réduit, par exemple inférieur à plus ou moins 20°, par rapport à la verticale passant par l'axe d'articulation de ladite structure la par rapport à la structure 2a de cadre du dossier.To ensure a locking in retracted position, the rod 21 is rotated about its axis of pivoting A3 through its light 8b in which slides the second pin 8a drive belonging to the part 11. As shown in Figure 8, when the frame structure 2a of the backrest and the piece 11 in the form of a square rotate in the direction of the arrow Fl around the lower axis Al pivoting backrest, the link 21 pivots in the direction of the arrow F2 about its pivot axis A3. At the end of the retraction stroke, the second driving pin 8a of the connecting rod 21 allowed the tilting of the latter with its end 21a, opposite to that carrying the light 8b, locking in the two heads 20a of the double hook 20 This connecting rod 21, thus locked, maintains the frame structure 2a of the backrest in the retracted position. In the complete retracted position, shown in FIG. 8, the medallion structure la advantageously extends vertically, at least with a reduced positive or negative angle, for example less than plus or minus 20 °, with respect to the vertical passing through the axis of articulation of said structure la relative to the frame structure 2a of the folder.
La figure 9 montre un habitacle H d'un véhicule automobile avec un siège bébé SB, placé à l'arrière de cet habitacle sur un siège passager dont le dossier a été escamoté complètement selon la présente invention.Figure 9 shows a cabin H of a motor vehicle with a baby seat SB, placed at the rear of the passenger compartment in a passenger seat whose backrest was completely retracted according to the present invention.
Ce siège passager est le siège du milieu de la banquette arrière mais il pourrait être aussi un siège arrière droit ou gauche.This passenger seat is the middle seat of the rear seat, but it could also be a right or left rear seat.
Le siège bébé SB est placé dos à la route, c'est à dire dans le sens contraire de circulation, comme il est d'usage habituel.The baby seat SB is placed back to the road, that is to say in the opposite direction of circulation, as it is customary.
Du fait du pivotement du médaillon 1 hors du cadre du dossier, formé par les bras 2, dans une position faiblement inclinée par rapport à la verticale devant l'assise du siège, un espace E sécurisé en forme de cuvette est alors offert entre les bras 2 du cadre du dossier pour la réception de ce siège bébé SB, les bras 2 formant une bordure pour chaque côté latéral du siège bébé SB, tandis que le médaillon 1 forme une bordure à l'arrière du siège bébé SB, c'est-à-dire devant lui en considération du sens d'avancement du véhicule automobile.Due to the pivoting of the medallion 1 out of the frame of the backrest, formed by the arms 2, in a slightly inclined position relative to the vertical in front of the seat of the seat, a safe space E in the form of a bowl is then offered between the arms 2 of the backrest frame for the reception of this SB baby seat, arms 2 forming a border for each side side of the baby seat SB, while the medallion 1 forms a border at the rear of the baby seat SB, that is to say before him in consideration of the direction of travel of the motor vehicle.
Cette disposition obtenue avec un dossier selon la présente invention est très avantageuse et répond aux besoins de retenue du siège bébé SB lors de freinage ou de choc frontal ou arrière ainsi que pour les chocs latéraux. Ceci est réalisé par l'encastrement naturel du siège bébé SB entre les bras 2 du dossier qui permettent d'empêcher tout déplacement latéral de ce siège. De même, à l'arrière du siège bébé SB, le médaillon 1 escamoté joue aussi le rôle de bordure et limite tout déplacement vers l'avant du véhicule du siège bébé SB.This arrangement obtained with a backrest according to the present invention is very advantageous and meets the restraint needs of the baby seat SB during braking or frontal or rear impact as well as for side impacts. This is achieved by the natural embedding of the baby seat SB between the arms 2 of the backrest that prevent lateral movement of the seat. Similarly, the back of the SB baby seat, the medallion 1 retracted also plays the role of border and limits any movement to the front of the vehicle SB baby seat.
De plus une telle disposition du siège bébé est plus conviviale que celle de l'état de la technique étant donné qu'une personne assise sur la banquette arrière se retrouve face au bébé et peut mieux s'occuper de celui-ci pendant le trajet.In addition, such a provision of the baby seat is more user-friendly than that of the state of the art since a person sitting in the back seat faces the baby and can better take care of it during the journey.
Si la figure 9 montre un siège bébé SB placé en rang deux du véhicule, la présente invention peut néanmoins concerner un rehausseur placé en rang deux de ce véhicule et/ou un siège bébé placé en rang un du véhicule à l'avant de celui-ci.If FIG. 9 shows a baby seat SB placed in row two of the vehicle, the present invention may nevertheless relate to a booster placed in a row two of this vehicle and / or a baby seat placed in a row of the vehicle in front of it. this.
La figure 10 montre notamment le mode de fixation du siège bébé SB avec le dossier d'un siège conformément à la présente invention.Figure 10 shows in particular the method of attachment of the baby seat SB with the back of a seat according to the present invention.
À cette figure, il peut être aussi vu l'espace E en forme de cuvette pour la réception du siège bébé SB, les bras 2 encadrant la zone inférieure des parties latérales de ce siège SB, ce qui limite ainsi son déplacement latéral .In this figure, it can also be seen the space E shaped bowl for the reception of SB baby seat, the arms 2 flanking the lower zone of the side portions of the seat SB, thereby limiting its lateral displacement.
Le siège bébé SB porte deux arceaux 13 sur sa face arrière s 'étendant sensiblement sur toute la longueur de celle-ci. Ces arceaux 13 permettent le passage d'une sangle 10 qui, en passant autour des supports d'appui- tête 7, solidarise les parties haute et moyenne du siège bébé SB avec le dossier de siège passager par l'intermédiaire du médaillon 1 bloqué en position escamotée. Une fixation peut aussi être prévue quand le médaillon 1 dispose d'une fixation isofix 16 telle que montrée à la figure 6.The baby seat SB carries two arches 13 on its rear face extending substantially over the entire length thereof. These arches 13 allow the passage of a strap 10 which, passing around the support supports- head 7, secures the upper and middle parts of the baby seat SB with the passenger seat back via the medallion 1 locked in the retracted position. A fixation may also be provided when the medallion 1 has an isofix fixation 16 as shown in FIG. 6.
La partie basse du siège bébé SB est aussi solidarisée avec le médaillon 1 par des crochets 9a dont la tête 9b respective coopère avec les fixations isofix 9 montrées à la figure 6.The lower part of the baby seat SB is also secured to the medallion 1 by hooks 9a whose respective head 9b cooperates with the isofix fasteners 9 shown in FIG.
Il est précisé encore une fois que l'utilisation d'un siège bébé n'est pas limitative pour la présente invention et que celui-ci peut être un rehausseur. Le système de fixation, sensiblement différent dans ce dernier cas, est celui habituellement utilisé pour un tel rehausseur .It is stated again that the use of a baby seat is not limiting for the present invention and that it may be a booster. The fixing system, substantially different in the latter case, is the one usually used for such a booster.
Ainsi, pour des enfants pesant jusqu'à 9 kilos, le siège pour enfant est un siège bébé SB comme montré aux figures 9 et 10, ce siège étant maintenu par la ceinture de sécurité et les fixations isofix portées par le médaillon 1 pour les chocs frontaux et arrière, en étant encastré entre les bras 2 du dossier, pour les chocs latéraux .Thus, for children weighing up to 9 kilos, the child seat is a baby seat SB as shown in Figures 9 and 10, this seat being held by the seat belt and the isofix fasteners carried by the medallion 1 for shocks front and rear, being embedded between the arms 2 of the folder, for side impacts.
Pour des enfants pesant de 9 à 18 kilos, les fixations isofix sont utilisées pour maintenir le siège ou le rehausseur, ces fixations étant facilement accessibles après escamotage du médaillon et du cadre du dossier du siège.For children weighing 9 to 18 kilos, isofix bindings are used to hold the seat or booster seat, these fasteners being easily accessible after retracting the medallion and seat back frame.
Un tel siège bébé ou enfant reçu dans l'espace, sensiblement en forme de cuvette, formé à l'intérieur du cadre du dossier permet une diminution de l'encombrement de celui-ci. Par exemple, cette position compactée permet le dégagement et le respect du champ de vision conducteur, c'est à dire de la vision à 180° pour un siège bébé placé en rang un du véhicule sur le siège passager, ou de la vision rétroviseur pour un siège bébé placé en rang deux dans le véhicule. Le siège passager selon la présente invention avec un tel médaillon et un tel cadre de dossier escamotable peut servir aussi indépendamment de la fixation d'un siège bébé ou enfant. Par exemple, quand le médaillon du siège passager avant est pivoté comme montré à la figure 2, cette disposition offre une vision avant panoramique des places arrière, en dégageant du champ de vision l'appui tête et le médaillon du dossier du siège.Such a seat baby or child received in the space, substantially shaped bowl, formed inside the frame of the folder allows a reduction in the size of it. For example, this compacted position allows the disengagement and respect of the driver's field of vision, ie the 180 ° vision for a baby seat placed in row one of the vehicle on the passenger seat, or rear view mirror vision for a baby seat placed in row two in the vehicle. The passenger seat according to the present invention with such a medallion and such retractable backrest frame can also be used regardless of the attachment of a baby seat or child. For example, when the medallion of the front passenger seat is rotated as shown in Figure 2, this arrangement provides a panoramic front view of the rear seats, releasing from the field of vision the headrest and the medallion of the seat back.
En outre, un plus large espace est offert à l'avant d'un siège de rang deux se trouvant derrière un siège passager avant dont le médaillon a été escamoté selon la figure 2. Cet espace peut être reconverti en espace de relaxation, par exemple en servant de repose pieds ou en espace de rangement. Dans ce dernier cas, des charges longues peuvent être plus facilement logées en sécurité dans le véhicule en partant de l'arrière du véhicule et en traversant le cadre de dossier vide pour s'étendre jusqu'à la planche de bord.In addition, a larger space is provided in front of a tier two seat behind a front passenger seat whose medallion was retracted according to Figure 2. This space can be converted into relaxation space, for example serving as a footstool or storage space. In the latter case, long loads can be more safely accommodated in the vehicle from the rear of the vehicle and through the empty file frame to extend to the dashboard.
Un tel siège avec dossier escamotable selon la présente invention permet aussi de maintenir valide tous les réglages existants de siège, ceux-ci étant à commande mécanique ou électrique. Le réglage de dossier peut ainsi rester traditionnel ainsi que son verrouillage et sa commande, ce qui représente une simplification des adaptations à entreprendre pour l'utilisation d'un tel siège selon la présente invention.Such a seat with retractable backrest according to the present invention also keeps valid all existing seat settings, they being mechanically or electrically controlled. The backrest adjustment can thus remain traditional and its locking and control, which represents a simplification of the adaptations to be undertaken for the use of such a seat according to the present invention.
L'invention n'est nullement limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemples. The invention is in no way limited to the described and illustrated embodiments which have been given by way of example only.

Claims

REVENDICATIONS
1. Procédé d'escamotage partiel d'un dossier de siège de véhicule automobile, ce siège comprenant une assise (3), un dossier composé d'une partie centrale dite médaillon (1) s 'étendant dans la longueur de celui-ci et un cadre (2) entourant ledit médaillon (1) sur au moins une partie de sa longueur, ledit procédé comprenant une étape d'escamotage d'une majeure partie du médaillon (1) hors du plan formé par le cadre (2) du dossier, plaçant ladite majeure partie au dessus et à distance de l'assise (3), caractérisé en ce que ladite étape est simultanée à ou suivie d'une étape de rabattement du cadre (2) du dossier vers l'assise (3), la majeure partie du médaillon (1) se trouvant devant le plan vertical contenant l'extrémité avant de l'assise (3) à la fin de ce rabattement .1. A method of partial retraction of a motor vehicle seat back, this seat comprising a seat (3), a backrest consisting of a central portion said medallion (1) extending in the length thereof and a frame (2) surrounding said medallion (1) over at least a part of its length, said method comprising a step of retracting a major part of the medallion (1) out of the plane formed by the frame (2) of the file , placing said major part above and away from the seat (3), characterized in that said step is simultaneous with or followed by a step of folding the frame (2) of the backrest towards the seat (3), most of the medallion (1) being in front of the vertical plane containing the front end of the seat (3) at the end of this folding.
2. Siège de véhicule automobile, comprenant une assise (3), un dossier composé d'une partie centrale dite médaillon (1) s 'étendant dans la longueur de celui-ci et un cadre (2) entourant ledit médaillon (1) sur au moins une partie de sa longueur, ledit médaillon (1) présentant des moyens de pivotement (A2, 10) par rapport au cadre (2), ledit cadre (2) présentant des moyens de pivotement (Al, 11) par rapport à l'assise (3), caractérisé en ce que les moyens de pivotement (A2, 10, Al, 11) respectifs du médaillon (1) et du cadre (2) sont aptes à effectuer leur pivotement pour que la majeure partie du médaillon (1) se trouve devant le plan vertical contenant l'extrémité avant de l'assise (3), quand le cadre (2) est pivoté pour être rabattu vers celle-ci.2. Seat of a motor vehicle, comprising a seat (3), a backrest composed of a central portion said medallion (1) extending in the length thereof and a frame (2) surrounding said medallion (1) on at least a part of its length, said medallion (1) having pivoting means (A2, 10) relative to the frame (2), said frame (2) having pivoting means (Al, 11) with respect to the seat (3), characterized in that the respective pivoting means (A2, 10, Al, 11) of the medallion (1) and the frame (2) are capable of pivoting so that the major part of the medallion (1 ) is in front of the vertical plane containing the front end of the seat (3), when the frame (2) is pivoted to be folded towards it.
3. Siège selon la revendication 2, caractérisé en ce que les moyens de pivotement (A2, 10) du médaillon comprennent un ressort de torsion (10) monté sur l'axe de pivotement (A2) exerçant une force de rappel du médaillon (1) dans sa position d'escamotage. 3. Seat according to claim 2, characterized in that the pivoting means (A2, 10) of the medallion comprises a torsion spring (10) mounted on the pivot axis (A2) exerting a restoring force of the medallion (1). ) in its retracted position.
4. Siège selon la revendication 2 ou 3, caractérisé en ce que le médaillon (1) s'étend sensiblement parallèle à l'assise (3) à la fin de son pivotement, quand le cadre (2) reste sensiblement inchangé en position. 4. Seat according to claim 2 or 3, characterized in that the medallion (1) extends substantially parallel to the seat (3) at the end of its pivoting, when the frame (2) remains substantially unchanged in position.
5. Siège selon l'une quelconque des revendications 2 à 4, caractérisé en ce qu'il présente un appui-tête (7) fixé sur la partie haute du médaillon (1) .5. Seat according to any one of claims 2 to 4, characterized in that it has a headrest (7) fixed on the upper part of the medallion (1).
6. Siège selon l'une quelconque des revendications 2 à 5, caractérisé en ce que, quand le cadre (2) du dossier est pivoté pour être rabattu vers l'assise (3), celui-ci forme un espace (E) interne en forme de cuvette pouvant recevoir un siège bébé (SB) ou un rehausseur pour enfant .6. Seat according to any one of claims 2 to 5, characterized in that, when the frame (2) of the backrest is pivoted to be folded towards the seat (3), it forms an internal space (E) bowl-shaped that can accommodate a baby seat (SB) or a booster seat for children.
7. Siège selon l'une quelconque des revendications 2 à 6, caractérisé en ce qu'aux moyens de pivotement (A2,Seat according to one of Claims 2 to 6, characterized in that the pivoting means (A2,
10; Al 11) du médaillon (1) et/ou du cadre (2) du dossier sont associés des moyens de blocage (12, 18; 6, 20, 21, 8a) en position normale ou escamotée et/ou des moyens de déverrouillage (4, 5) desdits moyens de blocage (12, 18; 6, 20, 21, 8a) .10; Al 11) of the medallion (1) and / or the frame (2) of the backrest are associated locking means (12, 18; 6, 20, 21, 8a) in the normal or retracted position and / or unlocking means ( 4, 5) of said locking means (12, 18; 6, 20, 21, 8a).
8. Siège selon la revendication 7, caractérisé en ce que le médaillon (1) présente, d'une part, comme moyen de blocage en position d'utilisation normale un premier crochet (12) coopérant avec une barre (18) solidaire de l'assise (3) du siège, le moyen de déverrouillage (4, 5) étant alors commun avec celui du cadre (2) du dossier et, d'autre part, comme moyen de blocage en position escamotée une butée angulaire.8. Seat according to claim 7, characterized in that the medallion (1) has, firstly, as locking means in normal use position a first hook (12) cooperating with a bar (18) integral with the seat (3) of the seat, the unlocking means (4, 5) then being common with that of the frame (2) of the folder and, secondly, as locking means in the retracted position an angular stop.
9. Siège selon la revendication 8, caractérisé en ce que le cadre (2) du dossier présente, comme moyen de blocage en position d'utilisation normale, un premier pion (6) solidaire du cadre et coopérant avec un second crochet (20) solidaire de l'assise (3), ce second crochet (20) étant avantageusement double pour former le moyen de blocage en position escamotée du cadre (2) en coopérant avec une bielle (21) entraînée en pivotement par ledit cadre (2), la bielle (21) présentant une lumière (8b) coulissant autour d'un second pion (8a) solidaire du cadre (2), cette bielle (21) se bloquant dans le double crochet (20) pour assurer le blocage en position escamotée . 9. Seat according to claim 8, characterized in that the frame (2) of the backrest has as a locking means in the normal use position, a first pin (6) integral with the frame and cooperating with a second hook (20). secured to the seat (3), this second hook (20) being advantageously double to form the locking means in the retracted position of the frame (2) by cooperating with a connecting rod (21) pivotally driven by said frame (2), the connecting rod (21) having a light (8b) sliding around a second pin (8a) integral with the frame (2), this connecting rod (21) locking in the double hook (20) for locking in the retracted position.
10. Siège selon la revendication 9, caractérisé en ce que le moyen de déverrouillage du cadre (2) du dossier est constitué d'une poignée (4) actionnant un câble (5) faisant pivoter le second crochet (20) de blocage du premier pion (6), libérant ainsi provisoirement le cadre (2) tandis que le médaillon (1) est rappelé en position escamotée, ou libérant ainsi le cadre (2) et le médaillon (1) pour les mettre en position d'escamotage complet.10. Seat according to claim 9, characterized in that the unlocking means of the frame (2) of the backrest consists of a handle (4) actuating a cable (5) pivoting the second hook (20) for locking the first pion (6), temporarily releasing the frame (2) while the medallion (1) is recalled in the retracted position, or releasing the frame (2) and the medallion (1) to put them in full retraction position.
11. Véhicule automobile, caractérisé en ce qu'il comprend un siège passager dont le dossier est escamotable selon le procédé de la revendication 1 ou un siège passager selon l'une quelconque des revendications 2 à 10. 11. Motor vehicle, characterized in that it comprises a passenger seat whose backrest is retractable according to the method of claim 1 or a passenger seat according to any one of claims 2 to 10.
PCT/FR2010/050756 2009-04-24 2010-04-20 Stowable seat for automobile, method for stowing said seat, and automobile including at least one such seat WO2010122263A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0952718A FR2944745B1 (en) 2009-04-24 2009-04-24 RETRACTABLE SEAT FOR A MOTOR VEHICLE, METHOD OF ESCAMATING THE SEAT AND MOTOR VEHICLE COMPRISING AT LEAST ONE SUCH SEAT
FR0952718 2009-04-24

Publications (1)

Publication Number Publication Date
WO2010122263A1 true WO2010122263A1 (en) 2010-10-28

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ID=41344788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2010/050756 WO2010122263A1 (en) 2009-04-24 2010-04-20 Stowable seat for automobile, method for stowing said seat, and automobile including at least one such seat

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FR (1) FR2944745B1 (en)
WO (1) WO2010122263A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018078284A1 (en) * 2016-10-25 2018-05-03 Renault S.A.S. Modular seat for a motor vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022107289A1 (en) 2022-03-28 2023-09-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vehicle seat

Citations (5)

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US5035465A (en) * 1988-08-25 1991-07-30 Nissan Motor Co., Ltd. Vehicular infant safety seat with seat back safety stopper
JPH07232580A (en) * 1994-02-22 1995-09-05 Toyo Sheet:Kk Seat device for vehicle
JPH08183378A (en) * 1994-12-28 1996-07-16 Nissan Motor Co Ltd Seat for vehicle
JPH11334434A (en) * 1998-05-25 1999-12-07 Ikeda Bussan Co Ltd Seat back for vehicle seat
FR2915147A1 (en) * 2007-04-17 2008-10-24 Peugeot Citroen Automobiles Sa SEAT FOR CONVERTIBLE MOTOR VEHICLE IN CHILD SEAT BACK TO ROAD AND ASSOCIATED MOTOR VEHICLE.

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US5035465A (en) * 1988-08-25 1991-07-30 Nissan Motor Co., Ltd. Vehicular infant safety seat with seat back safety stopper
JPH07232580A (en) * 1994-02-22 1995-09-05 Toyo Sheet:Kk Seat device for vehicle
JPH08183378A (en) * 1994-12-28 1996-07-16 Nissan Motor Co Ltd Seat for vehicle
JPH11334434A (en) * 1998-05-25 1999-12-07 Ikeda Bussan Co Ltd Seat back for vehicle seat
FR2915147A1 (en) * 2007-04-17 2008-10-24 Peugeot Citroen Automobiles Sa SEAT FOR CONVERTIBLE MOTOR VEHICLE IN CHILD SEAT BACK TO ROAD AND ASSOCIATED MOTOR VEHICLE.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018078284A1 (en) * 2016-10-25 2018-05-03 Renault S.A.S. Modular seat for a motor vehicle

Also Published As

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FR2944745A1 (en) 2010-10-29
FR2944745B1 (en) 2011-04-08

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