WO2013050719A1 - Stowable seat and kinematics of said seat - Google Patents

Stowable seat and kinematics of said seat Download PDF

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Publication number
WO2013050719A1
WO2013050719A1 PCT/FR2012/052265 FR2012052265W WO2013050719A1 WO 2013050719 A1 WO2013050719 A1 WO 2013050719A1 FR 2012052265 W FR2012052265 W FR 2012052265W WO 2013050719 A1 WO2013050719 A1 WO 2013050719A1
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WO
WIPO (PCT)
Prior art keywords
seat
rotation
backrest
intermediate piece
axis
Prior art date
Application number
PCT/FR2012/052265
Other languages
French (fr)
Inventor
Laurent Bauvineau
Original Assignee
Peugeot Citroen 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 Citroen Automobiles Sa filed Critical Peugeot Citroen Automobiles Sa
Publication of WO2013050719A1 publication Critical patent/WO2013050719A1/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
    • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
    • B60N2/015—Attaching seats directly to vehicle chassis
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161—Rods
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161—Rods
    • B60N2/1615—Parallelogram-like structure
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/165—Gear wheel driven mechanism
    • 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
    • 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
    • B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
    • B60N2/302—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by translation only
    • B60N2/3027—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by translation only along vertical axis
    • 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
    • B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
    • B60N2/3029—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by composed movement
    • B60N2/3031—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by composed movement in a longitudinal-vertical plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces

Definitions

  • the present invention generally relates to a retractable seat mounted on a motor vehicle comprising a backrest and a seat connected by a movable intermediate part.
  • vehicles can have different types of use. Indeed, the same vehicle can be used to carry passengers or goods or both at the same time.
  • the modularity of vehicles, and more particularly of their seats is an important factor for users. It has therefore been necessary to develop vehicles comprising retractable seats capable of being placed in a first position to accommodate passengers with maximum comfort and able to be retracted in a second position so as to optimize a free volume of the vehicle so that the latter can carry a maximum of goods.
  • retractable seats comprising a folder adapted to be folded down on a seat so as to release a space in height.
  • US 2005/0057081 discloses a conventional retractable seat comprising a backrest and a seat fixed to each other by means of a stationary pivot link.
  • the seat described by this document is able to free space in front of him by folding the seat against the backrest or to free space above him by folding back on the seat.
  • this seat does not release space under the folder but only on it and in front of it, while it is often preferable that the space released is as low as possible to limit the efforts vehicle loading.
  • DE 200 20 169 discloses a retractable seat comprising a backrest divided into two substantially similar parts, the first upper part being pivotally attached to the ceiling and the second lower part, itself pivotally attached to a seat.
  • the kinematics of retraction of this seat is however relatively complicated because requiring rotations both in the forward and reverse direction relative to the vehicle and therefore completely unsuitable for a small vehicle.
  • such a seat can not be placed against a rear frame because it will prevent movement in the backward direction.
  • the document FR2677588 describes a seat comprising a fixed backrest connected to a seat via a stationary intermediate piece acting as a rear seating element, where the seat is fixed to the intermediate piece by means of two pairs of pivoting rods so that the seat can be raised above the intermediate piece by means of a rotation of the connecting rods.
  • This seat allows to raise a portion of the seat to allow a child to sit properly on the seat.
  • such a seat absolutely makes it impossible to free space under the seat since both the intermediate piece and the backrest are immobile.
  • An object of the present invention is to meet the disadvantages of the documents of the prior art mentioned above and in particular to provide a retractable seat having a simplified retraction kinematics for freeing space under the seat while limiting the free space needed to implement kinematics.
  • a first aspect of the invention relates to a retractable vehicle seat comprising a backrest and a seat in which the seat is pivotally connected to the backrest by means of a first intermediate piece able to lift the seat vertically and characterized in that the backrest is moveable by means of a second intermediate piece suitable lift the backrest and seat vertically so that the total elevation of the seat is greater than the elevation of the backrest.
  • a seat allows to clear a free space under the seat by raising the seat complementary to the file.
  • This device allows, thanks to the complementary movement of the seat, to clear a large space under the seat even in the case where the movement of the folder upward is limited because, for example, a low ceiling or a bulky element such as a headrest.
  • a particularly interesting embodiment is that the seat in the elevated position keeps a substantially horizontal position. Thus, raising the seat adjacent to the driver does not affect the visibility of the driver.
  • the first intermediate piece comprises a first axis of rotation allowing the pivot of the first intermediate piece relative to the backrest and a second axis of rotation distinct from the first axis of rotation allowing the pivot of the first piece intermediate to the seat.
  • first intermediate piece and the second intermediate piece respectively implement a first kinematic and a second kinematic so that the seat is raised vertically in two stages.
  • Another particularly interesting embodiment consists in that the first kinematics raises the second axis of rotation and the second kinematics raises the first axis of rotation and the second axis of rotation.
  • the use of the seat is simplified for the user.
  • Another particularly interesting embodiment consists in that the first kinematics and the second kinematics are independent of one another. Thus, it is possible to set the elevation of the seat and back independently, depending on the type of vehicle in which the seat is installed.
  • first kinematics of the first intermediate part consists of a first rotation towards the front of the first intermediate part relative to the backrest and in a second simultaneous rotation and in the opposite direction to the first rotation. of the seat relative to the first intermediate piece.
  • the kinematics is relatively simple and does not require clearance to the rear.
  • Another particularly interesting embodiment consists in that the first kinematics moves the first intermediate piece so that it becomes a rear extension of the seat.
  • the lower end of the backrest is higher than its upper end and therefore limits the elevation of the backrest so that it is possible to reduce the height of the seat
  • the seat is a central seat. Thus, it allows an increase of the flexibility offered to the driver for loading.
  • Another aspect of the invention relates to a motor vehicle comprising the seat of the first aspect of the invention.
  • Figures 1A to 1C shows a retractable seat according to one embodiment of the present invention detailing the kinematics of the seat and backrest.
  • Figures 1A to 1C show a retractable vehicle seat 1 which comprises a backrest 2, a first intermediate part 4 and a seat 3.
  • the seat is disposed on a vehicle floor 10 and under a ceiling 1 1 thereof so that the seat 3 at a so-called low position is at a height xi of the floor and the upper end of the backrest 3 is at a height yi of the floor.
  • the total height between floor and ceiling of the vehicle is h.
  • the first intermediate part 4 pivotally connects the seat 3 to the backrest 2 by means of two axes of rotation.
  • the first axis of rotation 41 allows the pivoting of the first intermediate part 4 relative to the backrest 2 and the second axis of rotation 42 allows the pivoting of the first intermediate part 4 relative to the seat 3.
  • the second axis rotation 42 is distinct from the first axis of rotation 41 as shown in Figure 1 A.
  • FIG. 1B shows the seat after the implementation of a first kinematics, in which the first intermediate part 4 is able to raise the seat 3 vertically, and which consists in raising the second axis of rotation 42, and therefore seat 3 which is connected, by rotating the first intermediate part 4 about the first axis of rotation 41 in a first direction, towards the front of the seat.
  • the seat 3 in the elevated position keeps a substantially horizontal position. This can be achieved, for example, with the seat 3 adapted to pivot about the second axis of rotation 42 in a second direction opposite to the first direction of rotation of the first intermediate part 4 at the same time it rises.
  • the rotational movement generated by the rotation of the first intermediate part about the first axis of rotation 41 is counterbalanced by the rotational movement generated by the opposite rotation of the seat around the second axis of rotation 42.
  • the seat 3 was thus raised to a height x 2 of a distance (x 2 - xi) from its initial position and the backrest 2 and its upper end which remained motionless at its height yi
  • This first kinematics has thus raised the seat 3 without touching the backrest 2.
  • the seat 3 and is in a so-called intermediate position relative to the so-called low starting position.
  • the first intermediate part 4 which was, before the first kinematic, a lower extension of the backrest 2, became, after rotation about the first axis of rotation 41, a rear extension of the seat 3.
  • Figure 1C shows the seat after the implementation of a second kinematic.
  • the backrest 2 is fixed to the vehicle in a mobile manner by means of a second intermediate part 5 able to vertically raise the backrest 2 so that its upper end is at a height y 2 and therefore it has been raised a distance of (y 2 - y- ⁇ ), according to the second independent kinematic of the first kinematic which consists of a rotation of the second intermediate part 5.
  • the second intermediate part 5 may consist, as shown in FIG. conventional such as two pairs of pivoting rods, but is not limited to this embodiment.
  • the seat 3 which is thus raised in two stages according to two kinematics, is raised both by a height (x 3 - x 2 ) which is identical to (y 2 - y- ⁇ ) of the stroke provided by the rotation of the pivoting rods, and a height (x 2 - xi) of the stroke provided by the first kinematics, so that the total elevation of the seat 3 (x 3 - xi) is greater than the elevation of the backrest (y 2 - yi).
  • the backrest 2 is fixed, by means of the second intermediate part, to a structural element of the vehicle having a substantially vertical longitudinal axis.
  • the structural element for example a partition dividing the passenger compartment and the loading area at the rear of the vehicle, extends substantially parallel to the folder.
  • the seat 3 has been raised relative to its intermediate position and is in a so-called high position.
  • the space under the seat is completely released because the seat has no attachment to the floor of the vehicle.
  • the space released is therefore a parallelepiped volume of height x3 and a width substantially equal to the width of the seat.
  • Figure 1 shows a seat according to the present invention.
  • a seat can be a side seat, such as a front passenger seat, or a rear center seat.
  • the invention also relates to a vehicle in which the seat 1 would be mounted.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

A stowable vehicle seat (1) comprises a seatback (2) and a seat part (3) in which the seat part is pivotally connected to the seatback by means of a first intermediate part (4) capable of vertically raising the seat part, and is characterised in that the seatback is movable by means of a second intermediate part (5) capable of vertically raising the seatback and seat part in such a way that the total amount by which the seat part is raised is greater than the amount by which the seatback is raised.

Description

S I EG E ESCAMOTAB LE ET C I N EMATI Q U E D E C E LU I -C I  ESCAMOTAB LE S I EC A C I N EMATI D E C E LU I -C I
La présente invention concerne de manière générale un siège escamotable monté sur un véhicule automobile comprenant un dossier et une assise reliés par une pièce intermédiaire mobile. The present invention generally relates to a retractable seat mounted on a motor vehicle comprising a backrest and a seat connected by a movable intermediate part.
De nos jours, les véhicules peuvent avoir différents types d'utilisation. En effet, un même véhicule peut servir à transporter des passagers ou des marchandises ou les deux à la fois. En conséquence, la modularité des véhicules, et plus particulièrement de leurs sièges, est un facteur important pour les utilisateurs. Il a donc été nécessaire d'élaborer des véhicules comprenant des sièges escamotables aptes à être disposés dans une première position afin d'accueillir des passagers avec un confort maximal et aptes à être escamotés dans une seconde position de manière à optimiser un volume libre du véhicule de sorte que ce dernier puisse transporter un maximum de marchandises.  Nowadays, vehicles can have different types of use. Indeed, the same vehicle can be used to carry passengers or goods or both at the same time. As a result, the modularity of vehicles, and more particularly of their seats, is an important factor for users. It has therefore been necessary to develop vehicles comprising retractable seats capable of being placed in a first position to accommodate passengers with maximum comfort and able to be retracted in a second position so as to optimize a free volume of the vehicle so that the latter can carry a maximum of goods.
Par ailleurs, les voitures dites compactes étant de plus en plus prisées en région urbaine, ce type de siège escamotable doit également pouvoir être monté dans des véhicules de petite taille. Une cinématique d'escamotage de siège simplifiée dont la course est limitée est donc nécessaire.  Moreover, the so-called compact cars are increasingly popular in urban areas, this type of retractable seat must also be able to be mounted in small vehicles. A simplified seat retraction kinematics whose stroke is limited is therefore necessary.
Il est connu dans l'art antérieur des sièges escamotables comprenant un dossier apte à être rabattu vers le bas sur une assise de manière à libérer un espace en hauteur. Par exemple, le document US 2005/0057081 décrit un siège escamotable conventionnel comprenant un dossier et une assise fixés l'un à l'autre au moyen d'une liaison pivot immobile. Le siège décrit par ce document est capable de libérer de l'espace devant lui en rabattant l'assise contre le dossier ou de libérer de l'espace au dessus de lui en rabattant le dossier sur l'assise. Cependant, ce siège ne permet pas de libérer de l'espace sous le dossier mais uniquement sur celui-ci et devant celui-ci, alors qu'il est souvent préférable que l'espace libéré soit le plus bas possible afin de limiter les efforts de chargement du véhicule. Le document DE 200 20 169 décrit un siège escamotable comprenant un dossier divisé en deux parties essentiellement similaires, la première partie supérieure étant fixée de manière pivotante au plafond et à la seconde partie inférieure, elle-même fixée de manière pivotante à une assise. La cinématique d'escamotage de ce siège est cependant relativement compliquée car nécessitant des rotations à la fois dans le sens avant et arrière par rapport au véhicule et donc complètement inadaptée pour un véhicule de petite taille. De plus, avec un tel siège, il est nécessaire de disposer d'un logement pour placer le siège replié dans le plafond ce qui est inadapté pour un véhicule compact. Finalement, un tel siège ne peut pas être placé contre un bâti arrière car celui-ci empêcherai le mouvement dans le sens arrière. It is known in the prior art retractable seats comprising a folder adapted to be folded down on a seat so as to release a space in height. For example, US 2005/0057081 discloses a conventional retractable seat comprising a backrest and a seat fixed to each other by means of a stationary pivot link. The seat described by this document is able to free space in front of him by folding the seat against the backrest or to free space above him by folding back on the seat. However, this seat does not release space under the folder but only on it and in front of it, while it is often preferable that the space released is as low as possible to limit the efforts vehicle loading. DE 200 20 169 discloses a retractable seat comprising a backrest divided into two substantially similar parts, the first upper part being pivotally attached to the ceiling and the second lower part, itself pivotally attached to a seat. The kinematics of retraction of this seat is however relatively complicated because requiring rotations both in the forward and reverse direction relative to the vehicle and therefore completely unsuitable for a small vehicle. In addition, with such a seat, it is necessary to have a housing to place the folded seat in the ceiling which is unsuitable for a compact vehicle. Finally, such a seat can not be placed against a rear frame because it will prevent movement in the backward direction.
Le document FR2677588 décrit un siège comprenant un dossier fixe relié à une assise via une pièce intermédiaire immobile faisant office d'élément assise arrière, où l'assise est fixée à la pièce intermédiaire au moyen de deux paires de bielles pivotantes de sorte que l'assise puisse être surélevée au dessus de la pièce intermédiaire au moyen d'une rotation des bielles. Ce siège permet donc de surélever une portion de l'assise afin de permettre à un enfant de s'asseoir convenablement sur le siège. En revanche, un tel siège ne permet absolument pas de libérer de l'espace sous le siège puisque à la fois la pièce intermédiaire et le dossier sont immobiles.  The document FR2677588 describes a seat comprising a fixed backrest connected to a seat via a stationary intermediate piece acting as a rear seating element, where the seat is fixed to the intermediate piece by means of two pairs of pivoting rods so that the seat can be raised above the intermediate piece by means of a rotation of the connecting rods. This seat allows to raise a portion of the seat to allow a child to sit properly on the seat. On the other hand, such a seat absolutely makes it impossible to free space under the seat since both the intermediate piece and the backrest are immobile.
Un but de la présente invention est de répondre aux inconvénients des documents de l'art antérieur mentionnés ci-dessus et en particulier, de fournir un siège escamotable ayant une cinématique d'escamotage simplifiée permettant de libérer de l'espace sous le siège tout en limitant l'espace libre nécessaire à la mise en œuvre de la cinématique.  An object of the present invention is to meet the disadvantages of the documents of the prior art mentioned above and in particular to provide a retractable seat having a simplified retraction kinematics for freeing space under the seat while limiting the free space needed to implement kinematics.
Pour cela un premier aspect de l'invention concerne un siège escamotable de véhicule comprenant un dossier et une assise dans lequel l'assise est reliée de manière pivotante au dossier au moyen d'une première pièce intermédiaire apte à élever verticalement l'assise et caractérisé en ce que le dossier est mobile au moyen d'une seconde pièce intermédiaire apte à élever verticalement le dossier et l'assise de sorte que l'élévation totale de l'assise soit supérieure à l'élévation du dossier. Avantageusement, un tel siège permet de dégager un espace libre sous le siège en relevant l'assise de manière complémentaire au dossier. Ce dispositif permet donc, grâce au mouvement complémentaire de l'assise, de dégager un espace important sous le siège même dans le cas où le mouvement du dossier vers le haut est limité à cause, par exemple, d'un plafond bas ou d'un élément encombrant tel qu'un appui-tête. For this a first aspect of the invention relates to a retractable vehicle seat comprising a backrest and a seat in which the seat is pivotally connected to the backrest by means of a first intermediate piece able to lift the seat vertically and characterized in that the backrest is moveable by means of a second intermediate piece suitable lift the backrest and seat vertically so that the total elevation of the seat is greater than the elevation of the backrest. Advantageously, such a seat allows to clear a free space under the seat by raising the seat complementary to the file. This device allows, thanks to the complementary movement of the seat, to clear a large space under the seat even in the case where the movement of the folder upward is limited because, for example, a low ceiling or a bulky element such as a headrest.
Une réalisation particulièrement intéressante consiste en ce que l'assise en position élevée garde une position essentiellement horizontale. Ainsi, une élévation du siège adjacent au conducteur ne modifie pas la visibilité du conducteur.  A particularly interesting embodiment is that the seat in the elevated position keeps a substantially horizontal position. Thus, raising the seat adjacent to the driver does not affect the visibility of the driver.
Une autre réalisation particulièrement intéressante consiste en ce que la première pièce intermédiaire comprend un premier axe de rotation permettant le pivot de la première pièce intermédiaire par rapport au dossier et un second axe de rotation distinct du première axe de rotation permettant le pivot de la première pièce intermédiaire par rapport à l'assise. Ainsi, cette configuration permet de transformer une rotation de la première pièce intermédiaire en une translation de l'assise et donc de garder essentiellement constante l'orientation de l'assise.  Another particularly interesting embodiment consists in that the first intermediate piece comprises a first axis of rotation allowing the pivot of the first intermediate piece relative to the backrest and a second axis of rotation distinct from the first axis of rotation allowing the pivot of the first piece intermediate to the seat. Thus, this configuration makes it possible to transform a rotation of the first intermediate piece into a translation of the seat and thus to keep the orientation of the seat essentially constant.
Une autre réalisation particulièrement intéressante consiste en ce que la première pièce intermédiaire et la seconde pièce intermédiaire mettent respectivement en œuvre une première cinématique et une seconde cinématique de sorte que l'assise soit élevée verticalement en deux temps. Ainsi, il est possible d'obtenir une mise en œuvre simple de chacune des cinématiques.  Another particularly interesting embodiment consists in that the first intermediate piece and the second intermediate piece respectively implement a first kinematic and a second kinematic so that the seat is raised vertically in two stages. Thus, it is possible to obtain a simple implementation of each of the kinematics.
Une autre réalisation particulièrement intéressante consiste en ce que la première cinématique élève le second axe de rotation et la seconde cinématique élève le premier axe de rotation et le second axe de rotation. Ainsi, l'utilisation du siège est simplifiée pour l'utilisateur. Une autre réalisation particulièrement intéressante consiste en ce que la première cinématique et la seconde cinématique sont indépendantes l'une de l'autre. Ainsi, il est possible de paramétrer l'élévation de l'assise et du dossier indépendamment, en fonction du type de véhicule dans lequel le siège est installé. Another particularly interesting embodiment consists in that the first kinematics raises the second axis of rotation and the second kinematics raises the first axis of rotation and the second axis of rotation. Thus, the use of the seat is simplified for the user. Another particularly interesting embodiment consists in that the first kinematics and the second kinematics are independent of one another. Thus, it is possible to set the elevation of the seat and back independently, depending on the type of vehicle in which the seat is installed.
Une autre réalisation particulièrement intéressante consiste en ce que la première cinématique de la première pièce intermédiaire consiste en une première rotation vers l'avant de la première pièce intermédiaire par rapport au dossier et en une seconde rotation simultanée et dans le sens contraire à la première rotation de l'assise par rapport à la première pièce intermédiaire. Ainsi, la cinématique est relativement simple et ne nécessite pas de dégagement vers l'arrière.  Another particularly interesting embodiment consists in that the first kinematics of the first intermediate part consists of a first rotation towards the front of the first intermediate part relative to the backrest and in a second simultaneous rotation and in the opposite direction to the first rotation. of the seat relative to the first intermediate piece. Thus, the kinematics is relatively simple and does not require clearance to the rear.
Une autre réalisation particulièrement intéressante consiste en ce que la première cinématique déplace la première pièce intermédiaire de sorte à ce qu'elle devienne une prolongation arrière de l'assise. Ainsi, l'extrémité inférieure du dossier est davantage élevée que son extrémité supérieure et permet donc de limiter l'élévation du dossier de sorte que il soit possible de réduire la hauteur du siège  Another particularly interesting embodiment consists in that the first kinematics moves the first intermediate piece so that it becomes a rear extension of the seat. Thus, the lower end of the backrest is higher than its upper end and therefore limits the elevation of the backrest so that it is possible to reduce the height of the seat
Une autre réalisation particulièrement intéressante consiste en ce que le siège est un siège central. Ainsi, cela permet une augmentation de la flexibilité offerte au conducteur pour le chargement.  Another particularly interesting embodiment is that the seat is a central seat. Thus, it allows an increase of the flexibility offered to the driver for loading.
Un autre aspect de l'invention concerne un véhicule automobile comprenant le siège du premier aspect de l'invention.  Another aspect of the invention relates to a motor vehicle comprising the seat of the first aspect of the invention.
D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit d'un mode de réalisation de l'invention donné à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels :  Other features and advantages of the present invention will appear more clearly on reading the following detailed description of an embodiment of the invention given by way of non-limiting example and illustrated by the appended drawings, in which:
- les figures 1 A à 1 C représente un siège escamotable selon un mode de réalisation de la présente invention détaillant la cinématique de l'assise et du dossier. Les figures 1 A à 1 C représentent un siège de véhicule escamotable 1 qui comprend un dossier 2, une première pièce intermédiaire 4 et une assise 3. Le siège est disposé sur un plancher 10 de véhicule et sous un plafond 1 1 de celui-ci de sorte que l'assise 3 à une position dite basse soit à une hauteur xi du plancher et l'extrémité supérieure du dossier 3 soit à une hauteur yi du plancher. La hauteur totale entre plancher et plafond du véhicule est h. - Figures 1A to 1C shows a retractable seat according to one embodiment of the present invention detailing the kinematics of the seat and backrest. Figures 1A to 1C show a retractable vehicle seat 1 which comprises a backrest 2, a first intermediate part 4 and a seat 3. The seat is disposed on a vehicle floor 10 and under a ceiling 1 1 thereof so that the seat 3 at a so-called low position is at a height xi of the floor and the upper end of the backrest 3 is at a height yi of the floor. The total height between floor and ceiling of the vehicle is h.
La première pièce intermédiaire 4 relie de manière pivotante l'assise 3 au dossier 2 au moyen de deux axes de rotation. Le premier axe de rotation 41 permet le pivot de la première pièce intermédiaire 4 par rapport au dossier 2 et le second axe de rotation 42 permet le pivot de la première pièce intermédiaire 4 par rapport à l'assise 3. De préférence, le second axe de rotation 42 est distinct du premier axe de rotation 41 comme montré sur la figure 1 A.  The first intermediate part 4 pivotally connects the seat 3 to the backrest 2 by means of two axes of rotation. The first axis of rotation 41 allows the pivoting of the first intermediate part 4 relative to the backrest 2 and the second axis of rotation 42 allows the pivoting of the first intermediate part 4 relative to the seat 3. Preferably, the second axis rotation 42 is distinct from the first axis of rotation 41 as shown in Figure 1 A.
La figure 1 B représente le siège après la mise en œuvre d'une première cinématique, dans laquelle la première pièce intermédiaire 4 est apte à élever verticalement l'assise 3, et qui consiste à élever le second axe de rotation 42, et donc l'assise 3 qui est reliée, en faisant tourner la première pièce intermédiaire 4 autour du premier axe de rotation 41 dans un premier sens, vers l'avant du siège. Dans le mode de réalisation préféré illustré à la figure 1 B, l'assise 3 en position élevée garde une position essentiellement horizontale. Ceci peut être réalisé, par exemple, avec l'assise 3 adaptée pour pivoter autour du second axe de rotation 42 dans un second sens contraire au premier sens de rotation de la première pièce intermédiaire 4 en même temps qu'elle s'élève. Ainsi, le mouvement de rotation engendré par la rotation de la première pièce intermédiaire autour du premier axe de rotation 41 est contrebalancé par le mouvement de rotation engendré par la rotation inverse de l'assise autour du second axe de rotation 42.  FIG. 1B shows the seat after the implementation of a first kinematics, in which the first intermediate part 4 is able to raise the seat 3 vertically, and which consists in raising the second axis of rotation 42, and therefore seat 3 which is connected, by rotating the first intermediate part 4 about the first axis of rotation 41 in a first direction, towards the front of the seat. In the preferred embodiment illustrated in FIG. 1B, the seat 3 in the elevated position keeps a substantially horizontal position. This can be achieved, for example, with the seat 3 adapted to pivot about the second axis of rotation 42 in a second direction opposite to the first direction of rotation of the first intermediate part 4 at the same time it rises. Thus, the rotational movement generated by the rotation of the first intermediate part about the first axis of rotation 41 is counterbalanced by the rotational movement generated by the opposite rotation of the seat around the second axis of rotation 42.
Une fois la première cinématique achevée, l'assise 3 a donc été élevée à une hauteur x2 d'une distance (x2 - x-i) par rapport à sa position initiale et au dossier 2 et à son extrémité supérieure qui est restée immobile à sa hauteur yi Cette première cinématique a donc permis d'élever l'assise 3 sans toucher au dossier 2. L'assise 3 et se trouve dans une position dite intermédiaire par rapport à la position de départ dite basse. D'ailleurs, comme il est apparent de la figure 1 B, la première pièce intermédiaire 4 qui était, avant la première cinématique, une prolongation inférieure du dossier 2, est devenue, après rotation autour du premier axe de rotation 41 , une prolongation arrière de l'assise 3. Once the first kinematics completed, the seat 3 was thus raised to a height x 2 of a distance (x 2 - xi) from its initial position and the backrest 2 and its upper end which remained motionless at its height yi This first kinematics has thus raised the seat 3 without touching the backrest 2. The seat 3 and is in a so-called intermediate position relative to the so-called low starting position. Moreover, as is apparent from Figure 1 B, the first intermediate part 4 which was, before the first kinematic, a lower extension of the backrest 2, became, after rotation about the first axis of rotation 41, a rear extension of the seat 3.
La figure 1 C représente le siège après la mise en œuvre d'une seconde cinématique.  Figure 1C shows the seat after the implementation of a second kinematic.
Le dossier 2 est fixé au véhicule de manière mobile au moyen d'une seconde pièce intermédiaire 5 apte à élever verticalement le dossier 2 de sorte que son extrémité supérieure soit à une hauteur y2 et donc qu'elle a été élevée d'une distance de (y2 - y-ι), selon la seconde cinématique indépendante de la première cinématique qui consiste en une rotation de la seconde pièce intermédiaire 5. La seconde pièce intermédiaire 5 peut consister, comme montré sur la figure 1 C, en un moyen conventionnel tel que deux paires de bielles pivotantes, mais n'est pas limitée à ce mode de réalisation. The backrest 2 is fixed to the vehicle in a mobile manner by means of a second intermediate part 5 able to vertically raise the backrest 2 so that its upper end is at a height y 2 and therefore it has been raised a distance of (y 2 - y-ι), according to the second independent kinematic of the first kinematic which consists of a rotation of the second intermediate part 5. The second intermediate part 5 may consist, as shown in FIG. conventional such as two pairs of pivoting rods, but is not limited to this embodiment.
La seconde pièce intermédiaire 5, en élevant le dossier 2, élève donc également l'assise 3 à une hauteur x3 d'une distance (x3 - x2) qui est reliée au dossier 2 au moyen de la première pièce intermédiaire 4. Il en résulte que si le dossier 2 est élevé d'une hauteur égale (y2 - y-ι) de la course procurée par la rotation des bielles pivotante, l'assise 3, qui est donc élevée en deux temps selon deux cinématiques, est élevée à la fois d'une hauteur (x3 - x2) qui est identique à (y2 - y-ι) de la course procurée par la rotation des bielles pivotante, et d'une hauteur (x2 - x-i) de la course procurée par la première cinématique, de sorte que l'élévation totale de l'assise 3 (x3 - x-i) soit supérieure à l'élévation du dossier (y2 - y-i). The second intermediate part 5, by raising the backrest 2, also raises the seat 3 to a height x 3 of a distance (x 3 - x 2 ) which is connected to the backrest 2 by means of the first intermediate part 4. As a result, if the backrest 2 is raised by an equal height (y 2 - y-ι) of the stroke provided by the rotation of the pivoting connecting rods, the seat 3, which is thus raised in two stages according to two kinematics, is raised both by a height (x 3 - x 2 ) which is identical to (y 2 - y-ι) of the stroke provided by the rotation of the pivoting rods, and a height (x 2 - xi) of the stroke provided by the first kinematics, so that the total elevation of the seat 3 (x 3 - xi) is greater than the elevation of the backrest (y 2 - yi).
Plus précisément, le dossier 2 est fixé, au moyen de la seconde pièce intermédiaire, à un élément de structure du véhicule présentant un axe longitudinal sensiblement verticale. L'élément de structure, par exemple une cloison séparant l'habitacle et la zone de chargement à l'arrière du véhicule, s'étend de façon sensiblement parallèle au dossier. More specifically, the backrest 2 is fixed, by means of the second intermediate part, to a structural element of the vehicle having a substantially vertical longitudinal axis. The structural element, for example a partition dividing the passenger compartment and the loading area at the rear of the vehicle, extends substantially parallel to the folder.
Sur la figure 1 C, l'assise 3 a donc été élevée par rapport à sa position intermédiaire et se trouve dans une position dite haute. Ainsi, il est possible de dégager un espace libre sous le siège augmentant la hauteur de l'espace libre d'une distance (x3 - x-i ) malgré une hauteur h de plafond qui n'aurait pas permis un déplacement du dossier sur une telle distance. L'espace sous l'assise est totalement libéré car l'assise ne dispose d'aucune fixation la reliant au plancher du véhicule. L'espace libéré est donc un volume parallélépipédique de hauteur x3 et d'une largeur sensiblement égale à la largeur de l'assise. In Figure 1 C, the seat 3 has been raised relative to its intermediate position and is in a so-called high position. Thus, it is possible to release a free space under the seat increasing the height of the free space by a distance (x 3 - xi) despite a ceiling height h which would not have allowed a movement of the file on such a distance. The space under the seat is completely released because the seat has no attachment to the floor of the vehicle. The space released is therefore a parallelepiped volume of height x3 and a width substantially equal to the width of the seat.
La figure 1 représente un siège selon la présente invention. Il doit cependant être reconnu qu'un tel siège peut être un siège latéral, tel qu'un siège passager avant, ou un siège central arrière.  Figure 1 shows a seat according to the present invention. However, it must be recognized that such a seat can be a side seat, such as a front passenger seat, or a rear center seat.
Bien que cela ne soit pas représenté dans les figures, l'invention concerne également un véhicule dans lequel le siège 1 serait monté.  Although this is not shown in the figures, the invention also relates to a vehicle in which the seat 1 would be mounted.
On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées au mode de réalisation de l'invention décrit dans la présente description sans sortir du cadre de l'invention défini par les revendications annexées. En particulier, il est fait référence aux différents types de verrouillage permettant de verrouiller les éléments du siège escamotable en position élevée ou basse, ainsi qu'aux différents types de liaison pivot reliant les éléments du siège entre eux.  It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the embodiment of the invention described in the present description without departing from the scope of the invention defined by the appended claims. In particular, reference is made to the various types of locking for locking the elements of the retractable seat in high or low position, and the different types of pivot connection connecting the seat elements to each other.

Claims

R EVE N D I CATI ON S R EVE NDI CATI ON S
1 . Siège escamotable (1 ) de véhicule comprenant un dossier (2) et une assise (3) dans lequel l'assise est reliée de manière pivotante au dossier au moyen d'une première pièce intermédiaire (4) apte à élever verticalement l'assise et caractérisé en ce que le dossier est mobile au moyen d'une seconde pièce intermédiaire (5) apte à élever verticalement le dossier et l'assise de sorte que l'élévation totale de l'assise soit supérieure à l'élévation du dossier. 1. Vehicle retractable seat (1) comprising a backrest (2) and a seat (3) in which the seat is pivotally connected to the backrest by means of a first intermediate piece (4) able to raise the seat vertically and characterized in that the backrest is movable by means of a second intermediate piece (5) capable of vertically raising the backrest and the seat so that the total elevation of the seat is greater than the elevation of the backrest.
2. Siège escamotable selon la revendication 1 , caractérisé en ce que l'assise (3) en position élevée garde une position essentiellement horizontale. 2. Retractable seat according to claim 1, characterized in that the seat (3) in the raised position keeps a substantially horizontal position.
3. Siège escamotable selon la revendication 1 ou 2, caractérisé en ce que la première pièce intermédiaire (4) comprend un premier axe de rotation (41 ) permettant le pivot de la première pièce intermédiaire par rapport au dossier (2) et un second axe de rotation (42) distinct du premier axe de rotation permettant le pivot de la première pièce intermédiaire par rapport à l'assise (3).  Retractable seat according to claim 1 or 2, characterized in that the first intermediate piece (4) comprises a first axis of rotation (41) allowing the pivoting of the first intermediate piece with respect to the backrest (2) and a second axis rotation (42) separate from the first axis of rotation allowing the pivot of the first intermediate piece relative to the seat (3).
4. Siège escamotable selon la revendication 3, caractérisé en ce que la première pièce intermédiaire (4) et la seconde pièce intermédiaire (5) mettent respectivement en œuvre une première cinématique et une seconde cinématique de sorte que l'assise (3) soit élevée verticalement en deux temps.  4. retractable seat according to claim 3, characterized in that the first intermediate part (4) and the second intermediate part (5) respectively implement a first kinematic and a second kinematic so that the seat (3) is high vertically in two steps.
5. Siège escamotable selon la revendication 4, caractérisé en ce que la première cinématique élève le second axe de rotation (42) et la seconde cinématique élève le premier axe de rotation (41 ) et le second axe de rotation (42). 5. retractable seat according to claim 4, characterized in that the first kinematics raises the second axis of rotation (42) and the second kinematics raises the first axis of rotation (41) and the second axis of rotation (42).
6. Siège escamotable selon la revendication 4 ou 5, caractérisé en ce que la première cinématique et la seconde cinématique sont indépendantes l'une de l'autre. 6. retractable seat according to claim 4 or 5, characterized in that the first kinematic and the second kinematic are independent of one another.
7. Siège escamotable selon l'une quelconque des revendications 4 à 6, caractérisé en ce que la première cinématique de la première pièce intermédiaire (4) consiste en une première rotation vers l'avant de la première pièce intermédiaire (4) par rapport au dossier (2) et en une seconde rotation simultanée et dans le sens contraire à la première rotation de l'assise (3) par rapport à la première pièce intermédiaire (4)  7. Retractable seat according to any one of claims 4 to 6, characterized in that the first kinematic of the first intermediate piece (4) consists of a first rotation towards the front of the first intermediate piece (4) relative to the backrest (2) and in a second simultaneous rotation and in the opposite direction to the first rotation of the seat (3) relative to the first intermediate piece (4)
8. Siège escamotable selon la revendication 4 à 7, caractérisé en ce que la première cinématique déplace la première pièce intermédiaire (4) de sorte à ce qu'elle devienne une prolongation arrière de l'assise (3).  8. retractable seat according to claim 4 to 7, characterized in that the first kinematics moves the first intermediate piece (4) so that it becomes a rear extension of the seat (3).
9. Siège escamotable selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le siège (1 ) est un siège central.  9. retractable seat according to any one of claims 1 to 8, characterized in that the seat (1) is a central seat.
10. Véhicule automobile comprenant le siège (1 ) selon l'une quelconque des revendications 1 à 9.  10. Motor vehicle comprising the seat (1) according to any one of claims 1 to 9.
PCT/FR2012/052265 2011-10-06 2012-10-05 Stowable seat and kinematics of said seat WO2013050719A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1159028A FR2981019B1 (en) 2011-10-06 2011-10-06 REMOVABLE AND CINEMATIC SEAT OF THE SAME
FR1159028 2011-10-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105966269A (en) * 2016-06-16 2016-09-28 绵阳晓迪圣点创意科技有限公司 Bus seat
CN107917151A (en) * 2016-10-07 2018-04-17 白木工业株式会社 Clutch unit for vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677588A1 (en) 1991-06-11 1992-12-18 Faure Bertrand Automobile DEVICE FOR INCREASING A VEHICLE SEAT CUSHION COMPRISING A SECURITY LOCK.
DE20020169U1 (en) 2000-11-28 2002-04-04 Rle Internat Produktentwicklun vehicle seat
US20050057081A1 (en) 2003-09-16 2005-03-17 Kahn Zaki A. Vehicle seat
DE10355819A1 (en) * 2003-11-28 2005-06-30 Keiper Gmbh & Co. Kg Vehicle seat, in particular motor vehicle seat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677588A1 (en) 1991-06-11 1992-12-18 Faure Bertrand Automobile DEVICE FOR INCREASING A VEHICLE SEAT CUSHION COMPRISING A SECURITY LOCK.
DE20020169U1 (en) 2000-11-28 2002-04-04 Rle Internat Produktentwicklun vehicle seat
US20050057081A1 (en) 2003-09-16 2005-03-17 Kahn Zaki A. Vehicle seat
DE10355819A1 (en) * 2003-11-28 2005-06-30 Keiper Gmbh & Co. Kg Vehicle seat, in particular motor vehicle seat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105966269A (en) * 2016-06-16 2016-09-28 绵阳晓迪圣点创意科技有限公司 Bus seat
CN107917151A (en) * 2016-10-07 2018-04-17 白木工业株式会社 Clutch unit for vehicle

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FR2981019B1 (en) 2014-10-03

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