FR2806985A1 - Automobile seat headrest comprises elongated flexible plate insert installed on frame with rounded cavity adjusted by cable with knurled traction nut and ratchet - Google Patents
Automobile seat headrest comprises elongated flexible plate insert installed on frame with rounded cavity adjusted by cable with knurled traction nut and ratchet Download PDFInfo
- Publication number
- FR2806985A1 FR2806985A1 FR0004267A FR0004267A FR2806985A1 FR 2806985 A1 FR2806985 A1 FR 2806985A1 FR 0004267 A FR0004267 A FR 0004267A FR 0004267 A FR0004267 A FR 0004267A FR 2806985 A1 FR2806985 A1 FR 2806985A1
- Authority
- FR
- France
- Prior art keywords
- cable
- plate
- frame
- insert
- ratchet
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
<B>APPUI-TETE A</B> CONCAVITE REGLABLE La présente invention concerne un appui-tête de siege, notamment de véhicule automobile, et plus particulièrement tel appui-tête comprenant au moins un coussin solidaire d'un insert monté sur une armature. The present invention relates to a seat headrest, in particular a motor vehicle, and more particularly to a headrest comprising at least one cushion integral with an insert mounted on an armature. .
On connaît déjà de tels appuis-tête. L'insert peut, par exemple, être constitué d'une palette surmoulée "in situ" dans une mousse de matière plastique à l'intérieur d'une enveloppe textile. L'insert est alors généralement monté rotatif sur la branche horizontale d'une armature en U dont les deux branches verticales sont guidées et réglées en hauteur dans le dossier du siège. Such head restraints are already known. The insert may, for example, consist of a molded pallet "in situ" in a plastic foam inside a textile envelope. The insert is then rotatably mounted on the horizontal arm of a U-frame whose two vertical branches are guided and adjusted in height in the seat back.
Un tel agencement permet donc de régler le coussin d'appui- tête en inclinaison et en hauteur. Such an arrangement therefore makes it possible to adjust the headrest cushion in inclination and in height.
Un autre aspect du confort de l'appui-tête est toutefois négligé dans ces dispositifs connus. En effet, rien n'est prévu pour régler la géométrie de la surface d'appui et plus particulièrement son galbe. Hors, l'utilisateur peut souhaiter disposer d'une surface d'appui relativement plane en utilisation normale, et d'une surface d'appui plus galbée dans une position de repos. Another aspect of the comfort of the headrest is however neglected in these known devices. Indeed, nothing is provided to adjust the geometry of the bearing surface and more particularly its shape. Out, the user may wish to have a relatively flat bearing surface in normal use, and a more curved bearing surface in a rest position.
La présente invention vise à pallier cet inconvénient. The present invention aims to overcome this disadvantage.
Plus particulièrement, l'invention a pour but de fournir moyens pour régler le galbe d'un tel appui-tête. More particularly, the invention aims to provide means for adjusting the curve of such a headrest.
A cet effet, l'invention a pour objet un appui-tête de siège, notamment de véhicule automobile, comprenant au moins un coussin solidaire d'un insert monté sur une armature, caractérisé par le fait que ledit insert comprend une plaque allongée horizontalement matériau souple fixée à ladite armature, ladite plaque étant galbée pour présenter une concavité vers l'avant du véhicule, des moyens de réglage étant prévus pour régler ladite concavité. For this purpose, the subject of the invention is a seat headrest, in particular of a motor vehicle, comprising at least one cushion integral with an insert mounted on an armature, characterized in that said insert comprises an horizontally elongated plate material flexible attached to said frame, said plate being curved to have a concavity towards the front of the vehicle, adjusting means being provided for adjusting said concavity.
Dans un mode de réalisation particulier, ladite plaque est réalisée en matériau élastique et lesdits moyens de réglage comprennent un câble guidé sensiblement horizontalement à une certaine distance de ladite plaque et fixé aux extrémités de ladite plaque, et comprennent en outre des moyens de réglage pour régler la longueur dudit câble. In a particular embodiment, said plate is made of elastic material and said adjustment means comprise a cable guided substantially horizontally at a distance from said plate and fixed to the ends of said plate, and furthermore comprise adjusting means for adjusting the length of said cable.
Le galbe de l'appui-tête est ainsi réglé en réglant le galbe de l'insert. Ce dernier est arc-bouté sur le câble de réglage dont la longueur détermine la concavité de l'insert. The curve of the headrest is adjusted by adjusting the curve of the insert. The latter is braced on the adjustment cable whose length determines the concavity of the insert.
Dans un mode de réalisation particulier de l'invention, lesdits moyens de réglage comprennent une molette de traction sur le câble fixée à ladite plaque, et un dispositif a cliquet pour bloquer la rotation de ladite molette dans un sens prédéterminé. In a particular embodiment of the invention, said adjustment means comprise a traction wheel on the cable fixed to said plate, and a device has a ratchet for locking the rotation of said wheel in a predetermined direction.
L'insert peut posséder une forme généralement cylindrique. Toutefois, on peut également adopter une forme généralement tronconique, de manière à offrir une surface d'appui plus confortable pour la tête de l'utilisateur lorsque l'appui-tête est dans ses configurations les plus galbees. The insert may have a generally cylindrical shape. However, one can also adopt a generally frustoconical shape, so as to provide a more comfortable support surface for the head of the user when the headrest is in its most curvaceous configurations.
On décrira maintenant à titre d'exemple non limitatif, un mode de réalisation particulier l'invention, en référence aux dessins schématiques annexés dans lesquels - la figure 1 est une en perspective de l'arrière d'un appui- tête selon l'invention ; et la figure 2 est une vue également en perspective à plus grande échelle d'une partie de cet appui-tête. A particular embodiment of the invention will now be described by way of nonlimiting example, with reference to the appended diagrammatic drawings in which: FIG. 1 is a perspective view of the rear of a headrest according to the invention; ; and FIG. 2 is a view also in perspective on a larger scale of a part of this headrest.
On voit à la figure 1 un appui-tête composé d'un coussin 1 en mousse à l'intérieur duquel est logé un insert 2 monté sur une armature 3. L'armature 3 est en forme de U avec deux branches latérales 4 engagées dans le dossier 5 d'un siège de véhicule automobile. FIG. 1 shows a headrest consisting of a foam cushion 1 inside which an insert 2 mounted on an armature 3 is housed. The armature 3 is U-shaped with two lateral branches 4 engaged in the backrest 5 of a motor vehicle seat.
De façon connue, les broches 5 sont agencées pour coulisser dans des douilles (non représentées) solidaires du dossier 5 pour permettre le réglage en hauteur du coussin 1 dans la direction de la flèche F1. In known manner, the pins 5 are arranged to slide in sockets (not shown) integral with the backrest 5 to allow the height adjustment of the cushion 1 in the direction of the arrow F1.
L'insert 2 est constitué pour l'essentiel d'une plaque 6 en matière plastique souple et élastique, sensiblement rectangulaire et allongée dans la direction horizontale. La plaque 6 est montée à l'aide de vis ou de rivets 7 sur la branche transversale supérieure 8 de l'armature 3 par l'intermédiaire d'un cavalier 9. Le cavalier maintient la plaque 6 sur la branche 8 avec un certain frottement de manière à permettre un réglage de l'inclinaison coussin 1 dans le sens de la flèche F2. The insert 2 consists essentially of a plate 6 of flexible and elastic plastic material, substantially rectangular and elongated in the horizontal direction. The plate 6 is mounted by means of screws or rivets 7 on the upper transverse branch 8 of the frame 3 by means of a jumper 9. The rider holds the plate 6 on the branch 8 with a certain friction so as to allow adjustment of the cushion inclination 1 in the direction of the arrow F2.
La plaque 6 est galbée de manière à présenter son côté concave vers l'avant du véhicule (flèche AV). Comme cela est mieux représenté à la figure 2, la plaque 6 comporte à sa partie arrière des nervures 10 renforcées par des goussets 11. Les nervures 10 sont reparties sur la longueur de la plaque 6. The plate 6 is curved so as to have its concave side towards the front of the vehicle (arrow AV). As is better represented in FIG. 2, the plate 6 has, at its rear part, ribs 10 reinforced by gussets 11. The ribs 10 are distributed over the length of the plate 6.
Un câble 12 est fixé en 13 à une extrémité longitudinale de la plaque 6 et est engagé de façon coulissante dans les extrémités des nervures 10. Ainsi le câble 12 est maintenu sensiblement parallèle à la plaque 6 à une certaine distance de celle-ci et du côté de son côte convexe. A cable 12 is fixed at 13 to a longitudinal end of the plate 6 and is slidably engaged in the ends of the ribs 10. Thus the cable 12 is kept substantially parallel to the plate 6 at a distance from it and the side of its convex side.
A l'autre extrémité longitudinale de la plaque 6, une molette associée à un système à cliquet 15 est monté sur la plaque 6. La molette 14 permet d'enrouler le câble 12 de manière à faire varier sa longueur. Le cliquet permet la rotation de la molette 14 selon la flèche F3 dans un seul sens entraînant la réduction de la longueur du câble 12. Un système de débrayage de tout type connu permet de débrayer le cliquet par exemple en tirant ou en poussant sur la molette 14. At the other longitudinal end of the plate 6, a wheel associated with a ratchet system 15 is mounted on the plate 6. The wheel 14 is used to wind the cable 12 so as to vary its length. The pawl allows the rotation of the wheel 14 according to the arrow F3 in one direction resulting in reducing the length of the cable 12. A disengagement system of any known type allows to disengage the pawl for example by pulling or pushing on the wheel 14.
La plaque 6 est cintrée de construction dans sa configuration où le galbe est maximum. Dans cette configuration de la plaque 6, câble 12 a sa longueur maximale. The plate 6 is curved of construction in its configuration where the curve is maximum. In this configuration of the plate 6, cable 12 has its maximum length.
On comprend que, lorsque à l'aide de la molette 14 on réduit longueur du câble 12, on réduit simultanément le galbe ou le rayon de courbure de la plaque 6 en s'opposant à l'élasticité du matériau qui tend à le ramener à sa valeur initiale. Le cliquet 15 s'oppose à ce que la molette 14 tourne dans le sens contraire, lorsqu'elle est relâchée. It will be understood that when the length of the cable 12 reduces the length of the cable 12, the curvature or radius of curvature of the plate 6 is reduced simultaneously by opposing the elasticity of the material which tends to reduce it to its initial value. The pawl 15 opposes that the wheel 14 rotates in the opposite direction, when released.
Ainsi, on peut réduire progressivement, en tournant la molette le galbe de la plaque 6 et donc du coussin 1. Thus, it is possible to gradually reduce, by turning the wheel, the curve of the plate 6 and thus of the cushion 1.
Lorsque l'on souhaite réaugmenter ce galbe, il suffit debrayer le cliquet 15 et l'élasticité de la plaque 6 la ramène dans position d'origine.When it is desired to increase this curve, it is sufficient to disengage the pawl 15 and the elasticity of the plate 6 brings it back to the original position.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0004267A FR2806985B1 (en) | 2000-04-04 | 2000-04-04 | ADJUSTABLE CONCAVITY HEADREST |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0004267A FR2806985B1 (en) | 2000-04-04 | 2000-04-04 | ADJUSTABLE CONCAVITY HEADREST |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2806985A1 true FR2806985A1 (en) | 2001-10-05 |
FR2806985B1 FR2806985B1 (en) | 2002-07-26 |
Family
ID=8848834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0004267A Expired - Fee Related FR2806985B1 (en) | 2000-04-04 | 2000-04-04 | ADJUSTABLE CONCAVITY HEADREST |
Country Status (1)
Country | Link |
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FR (1) | FR2806985B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2403140A (en) * | 2003-06-23 | 2004-12-29 | Lear Corp | Head restraint for a vehicle seat wherein the restraint includes a support with a convex surface which conforms to the profile of an occupant's head and neck |
FR2897312A1 (en) * | 2006-02-13 | 2007-08-17 | Peugeot Citroen Automobiles Sa | Adjustable head rest for seat of motor vehicle, has cushion with tubular body structure having elements connected using pivot connections, where elements constitute geometric three-dimensional figure near parallelepiped rectangle |
FR2908023A1 (en) * | 2006-11-02 | 2008-05-09 | Faurecia Sieges Automobile | Head-rest for seat back of motor vehicle, has shaft including actuator sections arranged to pivot lateral parts by supporting rising surfaces on stop surfaces during rotation, where parts are pivoted independently from one another |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0142822A2 (en) * | 1983-11-18 | 1985-05-29 | Dieter Breitenbach | Vehicle occupants head-protecting device in accidents |
JPS60148727A (en) * | 1984-01-13 | 1985-08-06 | Nissan Motor Co Ltd | Head rest |
EP0152867A2 (en) * | 1984-02-09 | 1985-08-28 | C. Rob. Hammerstein GmbH | Headrest for vehicle seats, with two support rods, attachable to the seat back |
US4637655A (en) * | 1984-08-03 | 1987-01-20 | Cycles Peugeot | Adjustable head-rest for a motor vehicle seat or the like |
US4890885A (en) * | 1987-11-24 | 1990-01-02 | Dr. Ing. H.C.F. Porsche Ag | Seat for a vehicle, aircraft or the like |
WO1996029914A1 (en) * | 1995-03-27 | 1996-10-03 | Sittab Stol Aktiebolag | Neckrest |
DE19602909A1 (en) * | 1996-01-27 | 1997-07-31 | Keiper Recaro Gmbh Co | Headrest for motor vehicle seat |
-
2000
- 2000-04-04 FR FR0004267A patent/FR2806985B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0142822A2 (en) * | 1983-11-18 | 1985-05-29 | Dieter Breitenbach | Vehicle occupants head-protecting device in accidents |
JPS60148727A (en) * | 1984-01-13 | 1985-08-06 | Nissan Motor Co Ltd | Head rest |
EP0152867A2 (en) * | 1984-02-09 | 1985-08-28 | C. Rob. Hammerstein GmbH | Headrest for vehicle seats, with two support rods, attachable to the seat back |
US4637655A (en) * | 1984-08-03 | 1987-01-20 | Cycles Peugeot | Adjustable head-rest for a motor vehicle seat or the like |
US4890885A (en) * | 1987-11-24 | 1990-01-02 | Dr. Ing. H.C.F. Porsche Ag | Seat for a vehicle, aircraft or the like |
WO1996029914A1 (en) * | 1995-03-27 | 1996-10-03 | Sittab Stol Aktiebolag | Neckrest |
DE19602909A1 (en) * | 1996-01-27 | 1997-07-31 | Keiper Recaro Gmbh Co | Headrest for motor vehicle seat |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 313 (M - 437) 10 December 1985 (1985-12-10) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2403140A (en) * | 2003-06-23 | 2004-12-29 | Lear Corp | Head restraint for a vehicle seat wherein the restraint includes a support with a convex surface which conforms to the profile of an occupant's head and neck |
US6880891B2 (en) | 2003-06-23 | 2005-04-19 | Lear Corporation | Head restraint for seat |
GB2403140B (en) * | 2003-06-23 | 2005-09-07 | Lear Corp | Head restraint for seat |
FR2897312A1 (en) * | 2006-02-13 | 2007-08-17 | Peugeot Citroen Automobiles Sa | Adjustable head rest for seat of motor vehicle, has cushion with tubular body structure having elements connected using pivot connections, where elements constitute geometric three-dimensional figure near parallelepiped rectangle |
FR2908023A1 (en) * | 2006-11-02 | 2008-05-09 | Faurecia Sieges Automobile | Head-rest for seat back of motor vehicle, has shaft including actuator sections arranged to pivot lateral parts by supporting rising surfaces on stop surfaces during rotation, where parts are pivoted independently from one another |
Also Published As
Publication number | Publication date |
---|---|
FR2806985B1 (en) | 2002-07-26 |
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ST | Notification of lapse |