WO1987003256A1 - Dynamic seat of which the inclination of the back and the headrest varies as a function of the accelerations and decelerations of the vehicle - Google Patents

Dynamic seat of which the inclination of the back and the headrest varies as a function of the accelerations and decelerations of the vehicle Download PDF

Info

Publication number
WO1987003256A1
WO1987003256A1 PCT/FR1986/000392 FR8600392W WO8703256A1 WO 1987003256 A1 WO1987003256 A1 WO 1987003256A1 FR 8600392 W FR8600392 W FR 8600392W WO 8703256 A1 WO8703256 A1 WO 8703256A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
headrest
backrest
dynamic seat
fixed
Prior art date
Application number
PCT/FR1986/000392
Other languages
French (fr)
Inventor
Maurice Boulay
Original Assignee
Maurice Boulay
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
Priority claimed from FR8517428A external-priority patent/FR2590529B1/en
Priority claimed from FR8611297A external-priority patent/FR2602133B1/en
Application filed by Maurice Boulay filed Critical Maurice Boulay
Publication of WO1987003256A1 publication Critical patent/WO1987003256A1/en

Links

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
    • B60N2/68—Seat frames
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0268—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
    • 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
    • B60N2/22—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 adjustable
    • B60N2/2222—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 adjustable the back-rest having two or more parts
    • 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
    • B60N2/64—Back-rests or cushions
    • B60N2/643—Back-rests or cushions shape of the back-rests
    • 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
    • B60N2/64—Back-rests or cushions
    • B60N2/646—Back-rests or cushions shape of the cushion
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • B60N2/853—Tiltable characterised by their adjusting mechanisms, e.g. electric motors
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2002/948—Positioning and locking mechanisms the actuation of the positioning or locking mechanism for one seat part being dependent on the position of another seat part, e.g. the seats floor lock being unlocked when the back-rest is inclined or the backrest can be tilted only when the seat is in its rear position

Definitions

  • the subject of the invention is a dynamic seat whose inclination of the backrest and of the headrest independent or not of one another, varies according to the accelerations and decelerations and / or according to the will of the user.
  • the invention applies more particularly to the seats of motor vehicles, aircraft, as well as in furniture.
  • the position of the user the positioning of his spine against the backrest, vary, depending on the different accelerations and decelerations of the vehicle; However, the seat does not change and does not react to all these parameters. The user has back pain and gets tired. There is no dynamic massage of the spine.
  • the invention tends to avoid all of these drawbacks.
  • the seat comprises, at least, a substantially vertical upright on which the backrest is mounted, the lower part or parts of the upright or uprights being articulated by means acting as return spring for the angular rotation of the seat.
  • one of the embodiments is composed of a horizontal frame, which receives the non-movable horizontal part of the seat.
  • This chassis comprises two arms, substantially vertical at the end of which is mounted a horizontal axis on which is located the oscillating frame of the backrest.
  • Locking means allow the user to block the swinging of the backrest frame at will.
  • a second simplified embodiment has been designed, retaining the essential technical characteristics of the first, namely: that there is, at least, a substantially vertical upright, on which the file is mounted, taking into account that the or the lower parts of the / or uprights is articulated by means acting as a return spring of the angular rotation of the seat, the said means being fixed between the upright or oscillating dynamic frame and the chassis of the fixed horizontal part of the seat.
  • This seat may or may not have side cheeks which are fixed, just like the horizontal part of the seat.
  • the amount constituting the dynamic element can be made up of several amounts and form a frame.
  • a backrest comprising between the central movable parts, flexible parts which may consist of lateral bands, of rubber or latex.
  • the base of the backrest, for its part, may include an airy openwork part, to avoid overheating.
  • FIGURE 3 Schematic side view of the seat in a position where the upper part of the backrest goes forward while the headrest tilts backwards.
  • FIGURE 6 Schematic view of the seat, the spine and the different movements and forces exerted
  • FIGURE 8 Schematic side view of the seat showing the movements of the vertical upright (s).
  • This chassis (2) comprises two arms (3) and (4) substantially vertical at the end of which is oscillatingly mounted, the frame (5) of the backrest, which is made up of uprights, and of crosspieces. Adjustable means such as springs
  • the seat is composed in an identical manner to the first embodiment, namely, a horizontal non-mobile part 3 (1) mounted on the chassis (2), the latter being of the traditional type, and an angularly adjustable backrest (6) relative to the base or to the seat cushion (1).
  • This file (6) is mounted on, at least, a vertical upright (5) acting as a frame.
  • These uprights (5) have their lower end (37) articulated at the end (30) of a means acting as a return spring of a high pressure cylinder (31) or a gas spring such as a cylinder nitrogen.
  • Said cylinder (31) acts by pushing, during three quarters of the output of its rod and by progressively braking the output of its rod during the last quarter.
  • the upper end (7) of the upright (s) (5) is integral with the headrest (32).
  • the head is in contact with the headrest, but not permanently unlike the first embodiment.
  • the horizontal part and the side cheeks (33) (34) of the seat are fixed, while the backrest (6) has, in the characteristics specific to the invention, whatever the embodiment envisaged: and this for better comfort , a flexible part (35) located between the movable parts (6) and the fixed parts (1) (33) (34). made of elastic material.
  • This flexible part (35) can consist of two lateral bands, of rubber or latex, arranged between the backrest (6) and the lateral cheeks (33) (34).
  • the base of the backrest (6) may include a perforated part (36) which is very ventilated to avoid heating of the lower back.

Abstract

Dynamic seat comprised of a frame (2) which receives the horizontal motionless part of the seat. Said frame comprises two substantially vertical arms (3) at the end of which is mounted the oscillating frame (5) of the back (6). Adjustable means such as springs acting as a return spring are secured between the frame (5) and the frame (2) so as to provide for the angular adjustment of the back (6). The upper part of the frame (5) comprises a cylinder (8) on which is mounted the armature (10) of the headrest (32). Its connection with the frame is provided by servo-control means (11, 14). Locking means (23, 24) enable the user to block the pivoting of the seat as desired. The seat may or may not be provided with a horizontal part (1) on which may be mounted sides (33, 34) to provide for a better comfort. This invention applies particularly to motor vehicles, space vehicles, as well as to furniture.

Description

SIEGE DYNAMIQUE DONT L'INCLINAISON DU DOSSIER ET DE L'APPUI-TETE VARIE EN FONCTION DES ACCELERATIONS ET DES DECELERATIONS DU VEHICULE.DYNAMIC SEAT INCLUDING THE INCLINATION OF THE BACKREST AND HEADREST VARIED ACCORDING TO ACCELERATIONS AND DECELERATIONS OF THE VEHICLE.
L'invention a pour objet un siège dynamique dont l'inclinaison du dossier et de l'appui-tête indépendant ou non l'un de l'autre, varie en fonction des accélérations et des décélérations et /ou selon la volonté de l'utilisateur. L'inven¬ tion s'applique plus particulièrement aux sièges de véhicules automobiles, les aéronefs, ainsi que dans l'ameublement.The subject of the invention is a dynamic seat whose inclination of the backrest and of the headrest independent or not of one another, varies according to the accelerations and decelerations and / or according to the will of the user. The invention applies more particularly to the seats of motor vehicles, aircraft, as well as in furniture.
Actuellement, il existe de nombreux sièges dont le dossier ou siège est réglable angulairement par rapport à la base ou au coussin du siège. Ces réglages peuvent se faire manuellement ou à l'aide d'un moteur électrique. Dana tous les cas -'une fois que le réglage du siège est choisi, il ne peut être modifié que par la volonté de l'utilisateur. Or, bien sou- vent l'utilisateur choisit un réglage de son siège, pour une posi¬ tion donnée, mais , la fatigue se faisant sentir, l'utilisateur , change de position , sans changer la position angulaire de son siègeCurrently, there are many seats whose backrest or seat is angularly adjustable relative to the base or the seat cushion. These adjustments can be made manually or using an electric motor. In all cases - once the seat setting is chosen, it can only be changed by the will of the user. However, very often the user chooses an adjustment of his seat, for a given position, but, fatigue being felt, the user changes position, without changing the angular position of his seat
De même, la position de l'utilisateur, le positionnement de sa colonne vertébrale contre le dossier, varient, en fonction des différentes accélérations et décélérations du véhicule; Or, le siège ne change pas et ne réagit pas à tous ces paramètres. L'utilisateur a mal au dos , et se fatigue. Il n'y a pas de massage dynamique de la colonne vertébrale.Similarly, the position of the user, the positioning of his spine against the backrest, vary, depending on the different accelerations and decelerations of the vehicle; However, the seat does not change and does not react to all these parameters. The user has back pain and gets tired. There is no dynamic massage of the spine.
L'invention tend a éviter tous ces inconvénients.The invention tends to avoid all of these drawbacks.
Le siège, objet de l'invention est un siège dynamique qui réagit aux changements de position de l'utilisateur et aux différentes accélérations et décélérations Par ailleurs, cette invention ne change , en rien, le mécanisme existant, notamment sur les sièges des véhicules de conception traditionnelle.The seat which is the subject of the invention is a dynamic seat which reacts to changes in the position of the user and to the various accelerations and decelerations. Furthermore, this invention does not in any way change the existing mechanism, in particular on the seats of motor vehicles. traditional design.
En outre, il a été observé que la tête réagissait plus vite aux accélérations et aux décélérations, il est donc apparu, comme nécessaire, que l'appui- ête se situe dans un plan mobile dynamique, indépendant, de celui du dossier. Cette solution technique permettant , notamment, d'éviter le "coup du lapin"»In addition, it has been observed that the head reacts faster to accelerations and decelerations, it therefore appeared, as necessary, that the headrest is located in a dynamic mobile plane, independent of that of the backrest. This technical solution making it possible, in particular, to avoid "whiplash""
Aussi a - t - il été conçu, deux modes de réalisation dans lesquels le siège comporte , au moins, un montant sensiblement vertical sur lequel est monté le dossier, la ou les parties inférieures du ou des montants étant articulée par des moyens faisant office de ressort de rappel de la rotation angulaire du siège.Also, it has been designed, two embodiments in which the seat comprises, at least, a substantially vertical upright on which the backrest is mounted, the lower part or parts of the upright or uprights being articulated by means acting as return spring for the angular rotation of the seat.
l'une des réalisations est composée d'un châssis horizontal, qui reçoit la partie horizontale non mobile du siège. Ce châssis comporte deux bras, sensiblement verticaux à l'extrémité desquels est monté un axe horizontal sur lequel est situé le cadre oscillant du dossier.one of the embodiments is composed of a horizontal frame, which receives the non-movable horizontal part of the seat. This chassis comprises two arms, substantially vertical at the end of which is mounted a horizontal axis on which is located the oscillating frame of the backrest.
Des moyens réglables, tels que des ressorts, faisant office de ressorts de rappel, sont fixés , entre le cadre dynamique oscillant et le châssis horizontal, de manière à permettre le réglage angulaire dynamique du dossier.Adjustable means, such as springs, acting as return springs, are fixed, between the oscillating dynamic frame and the horizontal frame, so as to allow dynamic angular adjustment of the backrest.
La partie supérieure du cadre comporte un cylindre monté rotatif, autour de la traverse du dit cadre. Sur ce cylindre est fixée l'armature, qui reçoit l'appui-tête, des moyens réglables faisant office de ressorts de rappel étant fixés entre le cadre et le châssis, des moyens de commande permettent de faire varier l'angle de l'armature de l'appui-tête par rapport au cadre. Le dit moyen de commande, pouvant être un cable.The upper part of the frame comprises a cylinder mounted to rotate, around the crosspiece of said frame. On this cylinder is fixed the armature, which receives the headrest, adjustable means acting as return springs being fixed between the frame and the chassis, control means make it possible to vary the angle of the armature of the headrest in relation to the frame. Said control means, which can be a cable.
Les moyens faisant office de ressorts de rappel peuvent être des ressorts, qui sont disposés entre la traverse inférieure du cadre rotatif du dossier et l'une des tra¬ verses horizontales du châssis horizontal.The means acting as return springs can be springs, which are arranged between the lower cross member of the rotary frame of the backrest and one of the horizontal cross-members of the horizontal frame.
L'armature mobile de l'appui-tête et le cadre du dit dossier sont reliés de manière dynamique par des moyens d'asservissements. - L'axe cylindrique sur lequel est fi¬ xée l'armature comporte une poulie fixe, une poulie rotative étant montée sur la traverse inférieure du cadre du dossier. Un cable est fixé à une traverse horizontale du châssis, puis le dit cable vient sur la poulie rotative de la traverse inférieure du cadre, et passe par les autres traverses du dit cadre, puis est frappé, après les quelques tours nécessaires sur la poulie fixe, de manière, à ce que le déplacement du dossier, en inclinaison vers l'arrière de sa partie supérieure, entraine la rotation du sommet de l'armature de l'appui-tête vers l'avant.The movable frame of the headrest and the frame of said backrest are dynamically connected by servo means. - The cylindrical axis on which the frame is fi¬ xed comprises a fixed pulley, a rotary pulley being mounted on the lower cross member of the backrest frame. A cable is fixed to a horizontal cross member of the chassis, then the said cable comes on the rotary pulley of the lower cross member of the frame, and passes through the other cross members of said frame, then is struck, after the few necessary turns on the fixed pulley , so that the movement of the backrest, tilting backwards from its upper part, causes the top of the frame of the headrest to rotate forward.
Un moyen de commande permet de manoeu¬ vrer , à volonté, l'appui-tête , indépendamment du dossier.A control means makes it possible to maneuver, at will, the headrest, independently of the backrest.
L'axe cylindrique sur lequel est monté l'armature de l'appui-tête comporte un moyen faisant office de bras de levier, et auquel est fixé l'extrémité d'un cable.The cylindrical axis on which the armature of the headrest is mounted comprises means acting as a lever arm, and to which the end of a cable is fixed.
L'autre extrémité du cable est munie d'une poignée de manoeuvre et est disposée au niveau d'un des bras verticaux, dans un support, dans lequel il coulisse, le dit support étant fixé au bras vertical.The other end of the cable is provided with an operating handle and is arranged at one of the vertical arms, in a support, in which it slides, the said support being fixed to the vertical arm.
Des moyens de blocage, permettent à volonté, à l'utilisateur, de bloquer le balancement du cadre du dossier.Locking means allow the user to block the swinging of the backrest frame at will.
A cet effet, le cadre comporte dans sa partie inférieure, une glissière, en arc de cercle, dans laquelle viennent un boulon et un écrou qui peuvent être serrés par une molette empêchant, ainsi, tout balancement du cadre.For this purpose, the frame has in its lower part, a slide, in an arc, in which come a bolt and a nut which can be tightened by a knob preventing, thus, any swinging of the frame.
Un second mode de réalisation simplifié a été conçu, en conservant les caractéristiques techniques essen¬ tielles du premier , à savoir : qu'il y a , au moins , un montant sensiblement vertical, sur lequel est monté le dossier, compte tenu que la ou les parties inférieures, du /ou des montants est articulée par des moyens faisant office de ressort de rappel de la rotation angulaire du siège, les dits moyens étant fixés entre le montant ou cadre dynamique oscillant et le châssis de la partie horizontale fixe du siège.A second simplified embodiment has been designed, retaining the essential technical characteristics of the first, namely: that there is, at least, a substantially vertical upright, on which the file is mounted, taking into account that the or the lower parts of the / or uprights is articulated by means acting as a return spring of the angular rotation of the seat, the said means being fixed between the upright or oscillating dynamic frame and the chassis of the fixed horizontal part of the seat.
Ce montant est solidaire d'un axe horizontal autour duquel il peut pivoter dans un plan vertical. Par ailleurs, son extrémité supérieure est solidaire et dans le prolongement de l'axe .maintenant 1'appui-tête, son extrémité inférieure étant articulée à l'extrémité d'un vérin à haute pression, ou ressort à gaz, tel qu'un vérin à azote.This upright is integral with a horizontal axis around which it can pivot in a vertical plane. Furthermore, its upper end is integral and in the extension of the axis. Now the headrest, its lower end being articulated at the end of a high pressure cylinder, or gas spring, such as a nitrogen cylinder.
En outre, ce montant vertical est monté, dans le premier tiers de sa partie supérieure, sur l'axe ou traverse horizontale, ce qui permet le pivotement du dit montant et donc, l'inclinaison de l'ensemble : dossier et appui-tête, puisque dans cette réalisation, leurs inclinaisons respectives ne peuvent être indépendantes.In addition, this vertical upright is mounted, in the first third of its upper part, on the horizontal axis or crosspiece, which allows the pivoting of said upright and therefore, the inclination of the assembly: backrest and headrest , since in this embodiment, their respective inclinations cannot be independent.
Ce siège peut avoir ou non des joues latérales qui sont fixes, tout comme la partie horizontale du siège. Le montant constituant l'élément dynamique pouvant être constitué de plusieurs montants et former un cadre.This seat may or may not have side cheeks which are fixed, just like the horizontal part of the seat. The amount constituting the dynamic element can be made up of several amounts and form a frame.
S'appliquant aux deux modes de réalisa¬ tions, il a été réalisé, pour un meilleur confort , un dossier comportant entre les parties mobiles centrales, des parties souples qui peuvent être constituées de bandes latérales, en caoutchouc ou en latex. La base du dossier pouvant , pour sa part, comporter une partie ajourée aérée, pour éviter 1'échauffement.Applying to the two embodiments, it has been produced, for better comfort, a backrest comprising between the central movable parts, flexible parts which may consist of lateral bands, of rubber or latex. The base of the backrest, for its part, may include an airy openwork part, to avoid overheating.
Pour une meilleure compréhension, il est donné à titre d'exemples non limitatifs deux modes de réalisation, se référant aux dessins ci-annexés :For a better understanding, two embodiments are given by way of non-limiting examples, referring to the attached drawings:
FIGURE 1 : Vue en perspective d'un siège, selon l'invention, mettant en évidence, les relations dynamiques entre l'armature de l'appui-tête et le cadre du dossier. FIGURE 2 : Vue schématique vue de côté du siège, dans une posi¬ tion où la partie supérieure du dossier va vers l'arrière tandis que l'appui-tête s'incline vers 1'avantFIGURE 1: Perspective view of a seat according to the invention, showing the dynamic relationships between the frame of the headrest and the frame of the backrest. FIGURE 2: Schematic side view of the seat, in a position where the upper part of the backrest goes backwards while the headrest tilts forward
FIGURE 3 : Vue schématique vue de côté du siège dans une posi¬ tion où la partie supérieure du dossier va vers l'avant tandis que l'appui-tête s'incline vers l'arrière.FIGURE 3: Schematic side view of the seat in a position where the upper part of the backrest goes forward while the headrest tilts backwards.
FIGURE 4 : Vue en coupe selon l'axe AA représenté en figu¬ re 2.FIGURE 4: Sectional view along the axis AA shown in Figure 2.
FIGURE 5 : Vue en perspective du siège mettant en évidence le ch ssis, le cadre du dossier, l'appui-tête et l'habillage proprement dit du siège.FIGURE 5: Perspective view of the seat highlighting the frame, the frame of the backrest, the headrest and the actual upholstery of the seat.
FIGURE 6 : Vue schématique du siège, de la colonne vertébrale et des différents mouvement et forces qui s'exercentFIGURE 6: Schematic view of the seat, the spine and the different movements and forces exerted
FIGURE 7 : Vue en perspective du second mode de réalisationFIGURE 7: Perspective view of the second embodiment
FIGURE 8 : Vue schématique vue de côté du siège mettant en évidence les mouvements du ou des montants verticaux.FIGURE 8: Schematic side view of the seat showing the movements of the vertical upright (s).
Le premier exemple de réalisation donné à titre indicatif et non limitatif est constitué d'un châssis horizontal (2) qui reçoit la partie horizontale (1) non mobile du siège (non représenté à la figure 1.The first exemplary embodiment given by way of non-limiting example consists of a horizontal frame (2) which receives the non-movable horizontal part (1) of the seat (not shown in FIG. 1).
Ce châssis (2) comporte deux bras (3) et (4) sensiblement verticaux à l'extrémité desquels est monté oscillant, le cadre (5) du dossier, lequel est constitué de montants ,et de traverses. Des moyens réglables tels que des ressortsThis chassis (2) comprises two arms (3) and (4) substantially vertical at the end of which is oscillatingly mounted, the frame (5) of the backrest, which is made up of uprights, and of crosspieces. Adjustable means such as springs
(26) (27) faisant office de ressort de rappel sont fixés entre le cadre dynamique oscillant (5) et le châssis horizontal (2), de manière à permettre le réglage angulaire dynamique du dossier (6).(26) (27) acting as a return spring are fixed between the oscillating dynamic frame (5) and the horizontal frame (2), so as to allow dynamic angular adjustment of the backrest (6).
La partie supérieure (7) du cadre ou des montants (5) comporte un cylindre (8) monté rotatif autour de la traverse (9) du dit cadre (5). Sur ce cylindre (8) est fixée l'armature (10) qui reçoit l'appui-tête, des moyens réglables faisant office de ressort de rappel, sont fixés entre le cadre et le châssis, des moyens de commande (12) permettent de faire varier l'angle de l'armature (10) de l'appui- tête, par rapport au cadre (5).The upper part (7) of the frame or the uprights (5) comprises a cylinder (8) rotatably mounted around the crosspiece (9) of said frame (5). On this cylinder (8) is fixed the frame (10) which receives the headrest, adjustable means acting as a return spring, are fixed between the frame and the chassis, control means (12) allow vary the angle of the frame (10) of the headrest, relative to the frame (5).
Le dit moyen de commande peut être un cable (12) .Said control means can be a cable (12).
Les moyens faisant office de ressort de rappel peuvent être des ressorts (26) (27) qui sont disposés entre la traverse inférieure (16) du cadre rotatif (5) du dossierThe means acting as return spring can be springs (26) (27) which are arranged between the lower crosspiece (16) of the rotary frame (5) of the backrest
(6) et- l'une des traverses horizontales (13) du châssis (2) horizontal.(6) and one of the horizontal crosspieces (13) of the horizontal frame (2).
L'armature mobile (10) de l'appui-tête et le cadre (5) du dit dossier (6) sont reliés de manière dyna¬ mique par des moyens d'asservissement. L'axe cylindrique (8) sur lequel est fixée l'armature (10) comporte une poulie fixe (14) et une poulie rotative (15) est montée sur la traverse inférieure (16) du cadre (5) du dossier (6). Un cable (11) est fixé à une traverse horizontale (17) du châssis (2), puis ce dit cable (11) vient sur la poulie rotative (15) de la traverse inférieure (16) du cadre (5) et passe par les autres traverses du dit cadre (5), puis est frappé, après les quelques tours nécessaires sur la poulie fixe (14), de manière à ce que le déplacement du dossier (6) en inclinaison vers l'arrière de sa partie supérieure (7) entraine la rotation du sommet de l'armature (10) de l'appui-tête vers l'avant. Un moyen de commande (12) permet de manoeuvrer , à volonté, l'appui-tête indépendamment du dossier (6). L'axe cylindrique (8) sur lequel est montée l'armature de l'appui-tête comporte un moyen faisant office de bras de 5 levier (18), et auquel est fixé l'extrémité (19) d'un cableThe movable frame (10) of the headrest and the frame (5) of said backrest (6) are dynamically connected by servo means. The cylindrical axis (8) on which the frame (10) is fixed comprises a fixed pulley (14) and a rotary pulley (15) is mounted on the lower crosspiece (16) of the frame (5) of the backrest (6) . A cable (11) is fixed to a horizontal crosspiece (17) of the chassis (2), then this said cable (11) comes on the rotary pulley (15) of the lower crosspiece (16) of the frame (5) and passes through the other crosspieces of said frame (5), then is struck, after the few necessary turns on the fixed pulley (14), so that the displacement of the backrest (6) in inclination towards the rear of its upper part ( 7) causes the top of the frame (10) of the headrest to rotate forward. A control means (12) makes it possible to maneuver, at will, the headrest independently of the backrest (6). The cylindrical axis (8) on which the armature of the headrest is mounted comprises means acting as a lever arm (18), and to which the end (19) of a cable is fixed
(12).(12).
L'autre extrémité (20) du cable (12) est munie d'une poignée de manoeuvre (21) et est disposée au niveau d'un des bras verticaux (3) dans un support (22) dansThe other end (20) of the cable (12) is provided with an operating handle (21) and is disposed at one of the vertical arms (3) in a support (22) in
2_Q lequel il coulisse, le dit support (22) étant pour sa part, fixé au bras vertical (3).2_Q which it slides, said support (22) being for its part, fixed to the vertical arm (3).
Des moyens de blocage (23) permettent à volonté, à l'utilisateur de bloquer le balancement du cadre (5) du dossier (6). A cet effet, le cadre (5) comporte dansLocking means (23) allow the user to block the swinging of the frame (5) of the backrest (6) at will. To this end, the frame (5) comprises in
*1_5 sa partie inférieure une glissière (24) en arc de cercle dans laquelle viennent un boulon et un écrou qui peuvent être serrés par une molette (23) empêchant ainsi, tout balancement du cadre (5), et par la même du dossier.* 1_5 its lower part a slide (24) in an arc of circle in which come a bolt and a nut which can be tightened by a knob (23) thus preventing any swinging of the frame (5), and by the same of the backrest.
Dans la figure 6 le siège est représentéIn Figure 6 the seat is shown
20 schématiquement avec un dossier (25) et son appui-tête (26),20 schematically with a backrest (25) and its headrest (26),
C'est le mouvement du dossier (25) qui empêche l'engourdissement et le tassement de la colonne vertébrale (29), permettant ainsi, un échange constant entre la tête, le tronc et les jambes évitant ainsi, la fatigue, les douleurs, le sommeil et tous les autresIt is the movement of the backrest (25) which prevents numbness and compaction of the spine (29), thus allowing a constant exchange between the head, the trunk and the legs thus avoiding fatigue, pain, sleep and all the others
2 inconvénients; la tête se trouvant en contact permanent avec l'appui-tête .2 drawbacks; the head being in permanent contact with the headrest.
Dans une variante décrite dans les figures 7 et 8 : le siège est composé de façon identique au premier mode de réalisation à savoir , une partie horizontale 3 non mobile (1) monté sur le châssis (2) , ce dernier étant de type traditionnel, et un dossier (6) réglable angulaire ent par rapport à la base ou au coussin (1) du siège. Ce dossier (6) est monté sur , au moins, un montant vertical (5) faisant office de cadre .comme dans la première réalisation. Ces montants (5) ont leur extrémité inférieure (37) articulée à l'extrémité (30) d'un moyen faisant office de ressort de rappel d'un vérin (31) à haute pression ou un ressort à gaz tel qu'un vérin à azote. Le dit vérin (31) agit en poussant, pendant les trois quarts de la sortie de sa tige et en freinant progressivement la sortie de sa tige pendant le dernier quart. L'extrémité supérieure (7) du ou des montants (5) est solidaire de l'appui-tête (32).In a variant described in FIGS. 7 and 8: the seat is composed in an identical manner to the first embodiment, namely, a horizontal non-mobile part 3 (1) mounted on the chassis (2), the latter being of the traditional type, and an angularly adjustable backrest (6) relative to the base or to the seat cushion (1). This file (6) is mounted on, at least, a vertical upright (5) acting as a frame. As in the first embodiment. These uprights (5) have their lower end (37) articulated at the end (30) of a means acting as a return spring of a high pressure cylinder (31) or a gas spring such as a cylinder nitrogen. Said cylinder (31) acts by pushing, during three quarters of the output of its rod and by progressively braking the output of its rod during the last quarter. The upper end (7) of the upright (s) (5) is integral with the headrest (32).
Le montant vertical (5) est monté dans le premier tiers de sa partie supérieure, solidaire d'un axe horizontal ou traverse (9), autour duquel il peut pivoter dans un plan vertical, tandis que son extrémité inférieure (37) est reliée à l'extrémité (30) du vérin (31).The vertical upright (5) is mounted in the first third of its upper part, secured to a horizontal axis or crosspiece (9), around which it can pivot in a vertical plane, while its lower end (37) is connected to the end (30) of the jack (31).
C'est donc le mouvement du dossier (6) sur son ou ses axes ou montants qui empêchent, comme précédem¬ ment l'engourdissement et le tassement de la colonne vertébrale (29).It is therefore the movement of the backrest (6) on its axis or its uprights which prevent, as before, numbness and compaction of the spine (29).
Pendant les décélérations (flèche 39) et les accélérations (flèche 38), la tête se trouve en contact avec l'appui-tête, mais pas d'une façon permanente contrairement au premier mode de réalisation. La partie horizontale et les joues latérales (33) (34) du siège sont fixes, alors que le dossier (6) comporte dans les caractéristiques propres à l'invention et ce quelque soit le mode de réalisation envisagé : et ce pour un meilleur confort , une partie souple (35) située entre les parties mobiles (6) et les parties fixes (l) (33) (34).réalisée en matériau élastique.During decelerations (arrow 39) and accelerations (arrow 38), the head is in contact with the headrest, but not permanently unlike the first embodiment. The horizontal part and the side cheeks (33) (34) of the seat are fixed, while the backrest (6) has, in the characteristics specific to the invention, whatever the embodiment envisaged: and this for better comfort , a flexible part (35) located between the movable parts (6) and the fixed parts (1) (33) (34). made of elastic material.
Cette partie souple (35) peut consister en deux bandes latérales, en caoutchouc ou en latex, disposées entre le dossier (6) et les joues latérales (33) (34). De même, la base du dossier (6) peut comporter une partie ajourée (36) très aérée pour éviter 1'échauffement du bas du dos. Pour l'utilisation de ce siège en montagne, sur des routes en lacets, les mouvements "avant" et "arrière" peuvent s'avérer gênants pour la conduite.This flexible part (35) can consist of two lateral bands, of rubber or latex, arranged between the backrest (6) and the lateral cheeks (33) (34). Likewise, the base of the backrest (6) may include a perforated part (36) which is very ventilated to avoid heating of the lower back. When using this seat in the mountains, on winding roads, the "forward" and "backward" movements can be troublesome for driving.
Pour remédier à cet inconvénient, en plus du blocage manuel, précédemment décrit dans le premier mode de réalisation, il a été conçu un dispositif de blocage automatique utilisant des masselottes sensibles au déport latéral . Celles-ci seront positionnées à la base du cadre oscillant (5) et agiront par blocage dans une lumière crantée. Dams la présente réalisation, la glissière (24) peut , à cet effet, être crantée et servir de moyen de blocage. To overcome this drawback, in addition to the manual locking, previously described in the first embodiment, an automatic locking device has been designed using weights sensitive to lateral offset. These will be positioned at the base of the oscillating frame (5) and will act by blocking in a notched light. In this embodiment, the slide (24) can, for this purpose, be notched and serve as a locking means.

Claims

R E V E N D I C A T I O N S
1.- Siège dynamique du type avec variation d'inclinaison de dossier, • caractérisé en ce qu'il comporte des moyens permettant de faire varier l'inclinaison du dossier (6) et de l'appui-tête (32) en fonction des accélérations et des décélérations.1.- Dynamic seat of the type with variation of backrest inclination, • characterized in that it comprises means making it possible to vary the inclination of the backrest (6) and of the headrest (32) as a function of the accelerations and decelerations.
" 2.- Siège dynamique selon la revendication 1, caractérisé en ce que la variation des inclinaisons du dossier (6) et de l'appui- tête (32) sont indépendantes l'une de l'autre. " 2.- Dynamic seat according to claim 1, characterized in that the variation of the inclinations of the backrest (6) and of the headrest (32) are independent of each other.
3.- Siège dynamique selon les revendications 1 et 2, caractérisé en ce qu'il comporte , au moins, un montant sensiblement vertical 0 (5), sur lequel est monté le dossier (6) , dont la /ou les parties inférieures sont articulées par des moyens faisant office de ressort de rappel assurant la rotation angulaire, ces dits moyens étant fixés entre le cadre dynamique oscillant (5) et le châssis fixe (2).3.- dynamic seat according to claims 1 and 2, characterized in that it comprises, at least, a substantially vertical amount 0 (5), on which is mounted the backrest (6), the / or the lower parts are articulated by means serving as return spring ensuring the angular rotation, these said means being fixed between the oscillating dynamic frame (5) and the fixed frame (2).
5: 4.- Siège dynamique, selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est constitué, d'un châssis horizontal (2) comportant deux bras (3) (4) sensiblement verticaux, à l'extrémité desquels est monté , oscillant, le cadre (5) composé de montants, que les moyens réglables faisant office de ressort 0 de rappel sont des ressorts (26) (27), et que l'armature mobile (10)* de l'appui-tête (32) est reliée de manière dynamique au ; cadre (5) par des moyens d'asservissements (11) (14) (15).5: 4.- dynamic seat according to any one of the preceding claims, characterized in that it consists of a horizontal frame (2) comprising two arms (3) (4) substantially vertical, at the end which is mounted, oscillating, the frame (5) composed of uprights, that the adjustable means acting as return spring 0 are springs (26) (27), and that the movable frame (10) * of the support -head (32) is dynamically connected to; frame (5) by servo means (11) (14) (15).
5.- Siège dynamique, selon les revendications 1,3,4, caractérisé par le fait que le cadre (5) comporte dans sa partie inférieure, un moyen de blocage du balancement du cadre, constitué par une glissière (24) en arc de cercle, dans laquelle viennent s'insérer un boulon et un écrou serrés par la molette (23) .5.- dynamic seat, according to claims 1,3,4, characterized in that the frame (5) comprises in its lower part, a means for blocking the swinging of the frame, constituted by a slide (24) in an arc, in which a bolt and a nut tightened by the thumb wheel (23) are inserted.
6.- Siège dynamique , selon les revendications 1,2,3,4, caractérisé en ce que le cadre (5) comporte dans sa partie supérieure (7) un cylindre (8) monté rotatif autour de la traverse (9) du dit cadre (5), sur ce cylindre (8) est fixée l'armature (10) qui reçoit l'appui-tête (32), des moyens de commande (12) permettant de faire varier l'angle de l'armature (10) de l'appui-tête par rapport au cadre (5).6. Dynamic seat according to claims 1,2,3,4, characterized in that the frame (5) comprises in its upper part (7) a cylinder (8) rotatably mounted around the crosspiece (9) of said frame (5), on this cylinder (8) is fixed the frame (10) which receives the headrest (32), control means (12) making it possible to vary the angle of the frame (10 ) of the headrest relative to the frame (5).
7.- Siège dynamique , selon l'une quelconque des revendications7.- dynamic seat according to any one of claims
1,2,3,4, caractérisé en ce que les ressorts (26) (27) sont disposés entre la traverse inférieure (16) du cadre oscillant (5) du dossier (6) et l'une des traverses horizontales (13) du châssis. (2).1,2,3,4, characterized in that the springs (26) (27) are arranged between the lower cross member (16) of the oscillating frame (5) of the backrest (6) and one of the horizontal cross members (13) of the chassis. (2).
8.- Siège dynamique , selon l'une quelconque des revendications 1,2,3 ou 4, caractérisé par le fait que les moyens d'asservissement sont un jeu de cable (11) , de poulies (14) (15) qui permettent, lorsque la partie supérieure (7) du dossier bascule vers l'arrière, d'incliner l'armature (10) de l'appui-tête vers l'avant et vice- versa.8.- dynamic seat, according to any one of claims 1,2,3 or 4, characterized in that the control means are a cable set (11), pulleys (14) (15) which allow , when the upper part (7) of the backrest tips backwards, tilt the frame (10) of the headrest forwards and vice versa.
9.- Siège dynamique , selon l'une quelconque des revendications 1,2,3,4,6,8, caractérisé en ce que la variation de l'angle de l'armature (10) de l'appui-tête par rapport au cadre (5) est obtenue par le fait que l'axe cylindrique (8) comporte une poulie fixe (14) et une poulie rotative (15) montée sur la traverse inférieure (16) du cadre (5), un cable (12) , servant de moyen de commande, étant fixé à une traverse horizontale (17) du châssis (2), et que , le dit cable (11) vient sur la poulie rotative (15) et passe par les autres traverses du dit cadre (5), puis qu'il est frappé, après les quelques tours nécessaires sur la poulie fixe (14), de manière à ce que le déplacement du dossier (6) en inclinaison vers l'arrière de sa partie supérieure (7), entraine la rotation du sommet de l'armature (10) de l'appui- tête vers l'avant. 9. A dynamic seat according to any one of claims 1,2,3,4,6,8, characterized in that the variation of the angle of the frame (10) of the headrest relative to the frame (5) is obtained by the fact that the cylindrical axis (8) comprises a fixed pulley (14) and a rotary pulley (15) mounted on the lower cross member (16) of the frame (5), a cable (12 ), serving as a control means, being fixed to a horizontal crosspiece (17) of the chassis (2), and that, the said cable (11) comes on the rotary pulley (15) and passes through the other crosspieces of the said frame ( 5), then it is struck, after the necessary few turns on the fixed pulley (14), so that the displacement of the backrest (6) in inclination towards the rear of its upper part (7), causes the rotation of the top of the frame (10) of the headrest forwards.
10.- Siège dynamique, selon les revendications 1,2,9, caractérisé en ce que le moyen de commande (12) permet de manoeuvrer , à volonté, l'appui-tête (32) indépendamment du dossier (6), l'axe cylindrique (8) sur lequel est montée l'armature (10) comportant " un moyen qui fait office de bras de levier (18) auquel est fixé l'extrémité (19) du dit cable (12). L'autre extrémité (20) du cable (12) est munie d'une poignée de manoeuvre (21), disposée10.- dynamic seat, according to claims 1,2,9, characterized in that the control means (12) allows to maneuver, at will, the headrest (32) independently of the backrest (6), the cylindrical axis (8) on which the armature (10) is mounted comprising " a means which acts as a lever arm (18) to which the end (19) of said cable (12) is fixed. The other end ( 20) of the cable (12) is provided with an operating handle (21), arranged
' au niveau d'un des bras verticaux (3), dans un support (22) dans lequel il coulisse, le dit support (22) étant lui-même fixé au 0 bras vertical (3).'at one of the vertical arms (3), in a support (22) in which it slides, said support (22) being itself fixed to the 0 vertical arm (3).
11.- Siège dynamique , selon l'une quelconque des revendications 1 ou 3, caractérisé en ce que dans une variante, le montant (5) est solidaire d'un axe horizontal ou traverse (9), autour duquel, le dit montant peut pivoter dans un plan vertical, son extrémité -5 supérieure (7) étant solidaire de l'appui-tête (32), son extrémité inférieure (37) étant articulée à l'extrémité (30) d'un moyen faisant office de vérin à haute pression ou de ressort à gaz, à double effet (31).11. Dynamic seat according to any one of claims 1 or 3, characterized in that in a variant, the upright (5) is integral with a horizontal axis or crosspiece (9), around which the said upright can pivot in a vertical plane, its upper end -5 (7) being integral with the headrest (32), its lower end (37) being articulated at the end (30) of a means acting as a cylinder to high pressure or gas spring, double acting (31).
12.- Siège dynamique, selon l'une quelconques des revendications 0 1 ,3 ou 11, caractérisé en ce que le moyen faisant office de vérin à haute pression à double effet, est un vérin à azote.12.- dynamic seat, according to any one of claims 0 1, 3 or 11, characterized in that the means acting as high-pressure double-acting cylinder, is a nitrogen cylinder.
13.- Siège dynamique , selon l'une quelconque des revendications 1,3,4 ou 11, caractérisé en ce que le dossier (6) comporte une partie souple (35) située entre les parties fixes (l) (33) (34) et la partie mobile (6), et que cette partie souple (35) peut être constituée de deux bandes latérales réalisées dans un matériau élastique du type caoutchouc ou latex, une partie ajourée (16) très aérée apportant un confort supplémentaire, en évitant l'échauf ement.13.- dynamic seat according to any one of claims 1,3,4 or 11, characterized in that the backrest (6) comprises a flexible part (35) located between the fixed parts (l) (33) (34 ) and the movable part (6), and that this flexible part (35) may consist of two lateral bands made of an elastic material of the rubber or latex type, a perforated part (16) very ventilated providing additional comfort, avoiding heating.
14.- Siège dynamique,selon la revendication 1,caractérisé en ce qu'il comporte un dispositif automatique bloquant le balancement constitué de masselotes agissant dans une lumière crantée. 14.- dynamic seat, according to claim 1, characterized in that it comprises an automatic device blocking the swing consisting of weights acting in a notched light.
PCT/FR1986/000392 1985-11-22 1986-11-19 Dynamic seat of which the inclination of the back and the headrest varies as a function of the accelerations and decelerations of the vehicle WO1987003256A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR85/17428 1985-11-22
FR8517428A FR2590529B1 (en) 1985-11-22 1985-11-22 DYNAMIC ARMCHAIR INCLUDING THE INCLINATION OF THE BACKREST AND HEADREST VARIED ACCORDING TO ACCELERATIONS AND DECELERATIONS OF THE VEHICLE
FR8611297A FR2602133B1 (en) 1986-08-01 1986-08-01 DYNAMIC SEAT INCLUDING THE INCLINATION OF THE BACKREST AND HEADREST VARIED ACCORDING TO ACCELERATIONS AND DECELERATIONS OF THE VEHICLE
FR86/11297 1986-08-01

Publications (1)

Publication Number Publication Date
WO1987003256A1 true WO1987003256A1 (en) 1987-06-04

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PCT/FR1986/000392 WO1987003256A1 (en) 1985-11-22 1986-11-19 Dynamic seat of which the inclination of the back and the headrest varies as a function of the accelerations and decelerations of the vehicle

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Country Link
EP (1) EP0249605A1 (en)
WO (1) WO1987003256A1 (en)

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US7488035B2 (en) 2005-10-18 2009-02-10 Delta Kogyo Co., Ltd. Automobile seat
US7992933B2 (en) 2007-06-21 2011-08-09 Lear Corporation Integrated vehicle seat with active head restraint system
US8265832B2 (en) 2007-10-08 2012-09-11 Grammer Ag Vehicle comprising a spring-mounted vehicle seat and a spring-mounted vehicle cab, and suspension method
US8342541B2 (en) 2007-12-04 2013-01-01 Grammer, AG Apparatus and method for active spring suspension of a vehicle component
US8100472B2 (en) 2008-03-17 2012-01-24 Lear Corporation Vehicle active head restraint system with a locking linkage
US8408639B2 (en) * 2008-03-31 2013-04-02 Honda Motor Co., Ltd. Vehicle seat
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US10287019B2 (en) 2014-12-23 2019-05-14 Recaro Aircraft Seating Gmbh & Co. Kg Seating device
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CN110239475A (en) * 2019-05-10 2019-09-17 江苏大学 A kind of motor vehicle double bolloon safety device and its control method
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