FR3069499A1 - HEADREST FOR THE SEAT OF A MOTOR VEHICLE - Google Patents
HEADREST FOR THE SEAT OF A MOTOR VEHICLE Download PDFInfo
- Publication number
- FR3069499A1 FR3069499A1 FR1757075A FR1757075A FR3069499A1 FR 3069499 A1 FR3069499 A1 FR 3069499A1 FR 1757075 A FR1757075 A FR 1757075A FR 1757075 A FR1757075 A FR 1757075A FR 3069499 A1 FR3069499 A1 FR 3069499A1
- Authority
- FR
- France
- Prior art keywords
- wire
- locking
- rods
- headrest
- housing
- 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
- 239000000463 material Substances 0.000 claims description 5
- 239000002991 molded plastic Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/815—Release mechanisms, e.g. buttons
-
- 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
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/818—Head-rests movable or adjustable vertically slidable characterised by their locking devices with stepwise positioning
-
- 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
- B60N2/894—Head-rests with rods solidly attached to the back-rest
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
L'invention concerne un appui-tête (1) comprenant deux tiges (2) pourvues de crans (3) de verrouillage, lesdites tiges étant montées en coulissement dans un boitier (4), et un dispositif de verrouillage dudit boitier par rapport auxdites tiges comprenant un fil (5) mobile entre une position de verrouillage où il s'engage par deux parties de verrouillage (6a,6b) respectives dans deux crans (3) respectifs desdites tiges et une position de déverrouillage où il se dégage desdits crans, lesdites parties de verrouillage étant formées par pliage localisé dudit fil en saillie, ledit fil étant monté en coulissement transversal dans ledit boitier entre deux positions extrêmes correspondant aux positions de verrouillage et de déverrouillage, ledit fil conservant sensiblement sa forme d'une position à l'autre, ledit fil étant contraint par un moyen ressort (7) vers sa position de verrouillage, ledit fil coopérant avec un bouton (8) permettant de le déplacer vers sa position de déverrouillage à l'encontre dudit moyen ressort.The invention relates to a headrest (1) comprising two rods (2) provided with locking notches (3), said rods being slidably mounted in a housing (4), and a device for locking said housing relative to said rods comprising a wire (5) movable between a locking position where it engages with two respective locking portions (6a, 6b) in two respective notches (3) of said rods and an unlocking position in which said notches are disengaged, said locking portions being formed by localized folding of said projecting wire, said wire being mounted transversely in said housing between two extreme positions corresponding to the locking and unlocking positions, said wire substantially retaining its shape from one position to the other , said wire being constrained by a spring means (7) towards its locking position, said wire cooperating with a button (8) for moving it towards its position of d locking against said spring means.
Description
L’invention concerne un appui-tête de siège de véhicule automobile.The invention relates to a headrest for a motor vehicle seat.
Il est connu de réaliser un appui-tête de siège de véhicule automobile, ledit appuitête comprenant :It is known to produce a headrest for a motor vehicle seat, said headrest comprising:
• deux tiges parallèles latérales de liaison au siège destinées à être montées en haut de dossier dudit siège, lesdites tiges étant pourvues de crans de verrouillage, • un boîtier en matériau plastique moulé d’absorption d’énergie en cas de choc de la tête d’un passager sur ledit appui-tête, lesdites tiges étant montées en coulissement dans ledit boîtier, • un dispositif de verrouillage dudit boîtier par rapport auxdites tiges selon une pluralité de positions verticales, de manière à permettre un réglage en hauteur dudit boîtier, ledit dispositif comprenant un fil métallique de verrouillage s’étendant transversalement d’une desdites tiges à l’autre, ledit fil étant mobile entre :• two parallel lateral rods for connecting to the seat intended to be mounted at the top of the back of said seat, said rods being provided with locking notches, • a casing made of molded plastic material for absorbing energy in the event of impact of the head 'a passenger on said headrest, said rods being slidably mounted in said housing, • a device for locking said housing relative to said rods in a plurality of vertical positions, so as to allow height adjustment of said housing, said device comprising a metallic locking wire extending transversely from one of said rods to the other, said wire being movable between:
o une position de verrouillage où il s’engage par deux parties de verrouillage respectives dans deux crans respectifs desdites tiges, o et une position de déverrouillage où il se dégage desdits crans.o a locking position where it engages by two respective locking parts in two respective notches of said rods, o and an unlocking position where it emerges from said notches.
Cependant, les réalisations connues pour réaliser un tel dispositif de verrouillage sont généralement complexes et coûteuses, et d’une fiabilité parfois incertaine.However, the known embodiments for producing such a locking device are generally complex and expensive, and of reliability sometimes uncertain.
L’invention a pour but de pallier ces inconvénients en proposant un agencement particulièrement simple, fiable et économique.The purpose of the invention is to overcome these drawbacks by proposing a particularly simple, reliable and economical arrangement.
A cet effet, l’invention propose un appui-tête de siège de véhicule automobile, ledit appui-tête comprenant :To this end, the invention provides a headrest for a motor vehicle seat, said headrest comprising:
• deux tiges parallèles latérales de liaison au siège destinées à être montées en haut de dossier dudit siège, lesdites tiges étant pourvues de crans de verrouillage, • un boîtier en matériau plastique moulé d’absorption d’énergie en cas de choc de la tête d’un passager sur ledit appui-tête, lesdites tiges étant montées en coulissement dans ledit boîtier, • un dispositif de verrouillage dudit boîtier par rapport auxdites tiges selon une pluralité de positions verticales, de manière à permettre un réglage en hauteur dudit boîtier, ledit dispositif comprenant un fil métallique de verrouillage s’étendant transversalement d’une desdites tiges à l’autre, ledit fil étant mobile entre :• two parallel lateral rods for connecting to the seat intended to be mounted at the top of the back of said seat, said rods being provided with locking notches, • a casing made of molded plastic material for absorbing energy in the event of impact of the head d 'a passenger on said headrest, said rods being slidably mounted in said housing, • a device for locking said housing relative to said rods in a plurality of vertical positions, so as to allow height adjustment of said housing, said device comprising a metallic locking wire extending transversely from one of said rods to the other, said wire being movable between:
o une position de verrouillage où il s’engage par deux parties de verrouillage respectives dans deux crans respectifs desdites tiges, o et une position de déverrouillage où il se dégage desdits crans, ledit appui-tête présentant en outre les caractéristiques suivantes :o a locking position where it engages by two respective locking parts in two respective notches of said rods, o and an unlocking position where it emerges from said notches, said headrest further having the following characteristics:
• lesdites parties de verrouillage sont formées par pliage localisé dudit fil en saillie vers l’avant ou vers l’arrière, • ledit fil est monté en coulissement transversal dans ledit boîtier entre deux positions extrêmes correspondant aux positions de verrouillage et de déverrouillage, • ledit fil conserve sensiblement sa forme d’une position à l’autre, • ledit fil est contraint par un moyen ressort vers sa position de verrouillage, • ledit fil coopère avec un bouton permettant de le déplacer vers sa position de déverrouillage à l’encontre dudit moyen ressort.• said locking parts are formed by localized folding of said wire projecting forward or backward, • said wire is mounted in transverse sliding in said housing between two extreme positions corresponding to the locking and unlocking positions, • said wire substantially retains its shape from one position to another, • said wire is constrained by a spring means towards its locked position, • said wire cooperates with a button making it possible to move it towards its unlocked position against said medium spring.
Dans cette description, les termes de positionnement dans l’espace (transversal, latéral, avant, arrière, horizontal,...) sont pris en référence à l’appui-tête disposé en situation d’utilisation dans le véhicule.In this description, the terms of positioning in space (transverse, lateral, front, rear, horizontal, etc.) are taken with reference to the headrest placed in use in the vehicle.
Quand il est dit que le fil conserve sensiblement sa forme d’une position à l’autre, cela signifie qu’il ne subit sensiblement pas de déformation liée à une contrainte mécanique qui lui serait appliquée.When it is said that the wire retains its shape appreciably from one position to the other, it means that it does not undergo appreciably any deformation linked to a mechanical stress which would be applied to it.
L’agencement proposé, mettant en oeuvre une simple translation du fil métallique, sans déformation de celui-ci, est particulièrement simple à mettre en oeuvre, fiable et économique.The proposed arrangement, implementing a simple translation of the metal wire, without deformation thereof, is particularly simple to implement, reliable and economical.
D’autres particularités et avantages de l’invention apparaîtront dans la description qui suit, faite en référence aux figures jointes, dans lesquelles :Other features and advantages of the invention will appear in the following description, made with reference to the attached figures, in which:
• la figure 1 est une vue schématique en perspective partielle éclatée d’un appui-tête selon une première réalisation, • les figures 2a et 2b sont des vues schématiques en coupe horizontale de l’appui-tête de la figure 1, le fil étant en position de verrouillage (figure 2a) et de déverrouillage (figure 2b), • les figures 3a et 3b sont des vues schématiques en coupe horizontale d’une variante de réalisation de l’appui-tête des figures 1 et 2, le fil étant en position de verrouillage (figure 3a) et de déverrouillage (figure 3b), • les figures 4a et 4b sont des vues schématiques en coupe horizontale d’un appui-tête selon une deuxième réalisation, le fil étant en position de verrouillage (figure 4a) et de déverrouillage (figure 4b),• Figure 1 is a schematic partial exploded perspective view of a headrest according to a first embodiment, • Figures 2a and 2b are schematic views in horizontal section of the headrest of Figure 1, the wire being in the locked position (Figure 2a) and unlocked (Figure 2b), • Figures 3a and 3b are schematic views in horizontal section of an alternative embodiment of the headrest of Figures 1 and 2, the wire being in the locked position (Figure 3a) and unlocked (Figure 3b), • Figures 4a and 4b are schematic views in horizontal section of a headrest according to a second embodiment, the wire being in the locked position (Figure 4a ) and unlocking (figure 4b),
En référence aux figures, on décrit un appui-tête 1 de siège de véhicule automobile, ledit appui-tête comprenant :Referring to the figures, a headrest 1 of a motor vehicle seat is described, said headrest comprising:
• deux tiges 2 parallèles latérales de liaison au siège destinées à être montées en haut de dossier dudit siège, lesdites tiges étant pourvues de crans 3 de verrouillage, • un boitier 4 en matériau plastique moulé d’absorption d’énergie en cas de choc de la tête d’un passager sur ledit appui-tête, lesdites tiges étant montées en coulissement dans ledit boitier, ledit boitier étant notamment habillé par un coussin d’appui-tête non représenté, • un dispositif de verrouillage dudit boitier par rapport auxdites tiges selon une pluralité de positions verticales, de manière à permettre un réglage en hauteur dudit boitier, ledit dispositif comprenant un fil 5 métallique de verrouillage s’étendant transversalement d’une desdites tiges à l’autre, ledit fil étant mobile entre :• two parallel lateral rods 2 connecting to the seat intended to be mounted at the top of the back of said seat, said rods being provided with locking notches 3, • a casing 4 made of molded plastic material for absorbing energy in the event of a shock the head of a passenger on said headrest, said rods being slidably mounted in said case, said case being in particular dressed by a headrest cushion not shown, • a device for locking said case with respect to said rods a plurality of vertical positions, so as to allow height adjustment of said case, said device comprising a metallic locking wire extending transversely from one of said rods to the other, said wire being movable between:
o une position de verrouillage où il s’engage par deux parties de verrouillage 6a,6b respectives dans deux crans 3 respectifs desdites tiges, o et une position de déverrouillage où il se dégage desdits crans, ledit appui-tête présentant en outre les caractéristiques suivantes :o a locking position where it engages by two respective locking parts 6a, 6b in two respective notches 3 of said rods, o and an unlocking position where it emerges from said notches, said headrest further having the following characteristics :
• lesdites parties de verrouillage sont formées par pliage localisé dudit fil en saillie vers l’avant, de façon non représentée, ou vers l’arrière, selon les réalisations représentées, • ledit fil est monté en coulissement transversal dans ledit boîtier entre deux positions extrêmes correspondant aux positions de verrouillage et de déverrouillage, • ledit fil conserve sensiblement sa forme d’une position à l’autre, • ledit fil est contraint par un moyen ressort 7 vers sa position de verrouillage, • ledit fil coopère avec un bouton 8 - étant ici un bouton poussoir permettant de le déplacer vers sa position de déverrouillage à l’encontre dudit moyen ressort.• said locking parts are formed by localized folding of said protruding wire forward, not shown, or rearward, according to the embodiments shown, • said wire is mounted in transverse sliding in said housing between two extreme positions corresponding to the locking and unlocking positions, • said wire substantially retains its shape from one position to another, • said wire is constrained by a spring means 7 towards its locking position, • said wire cooperates with a button 8 - here being a push button for moving it to its unlocking position against said spring means.
Selon les réalisations des figures 1 à 3, les tiges 2 présentent des crans 3 débouchant vers l’avant, ou vers l’arrière en variante non représentée, les parties de verrouillage 6a,6b du fil 5 présentant chacune une zone sensiblement linéaire 9 d’insertion dans un cran 3 respectif et au moins une zone incurvée de raccordement 10 au reste dudit fil.According to the embodiments of Figures 1 to 3, the rods 2 have notches 3 opening towards the front, or towards the rear in a variant not shown, the locking parts 6a, 6b of the wire 5 each having a substantially linear area 9 d insertion into a respective notch 3 and at least one curved connection zone 10 to the rest of said wire.
De façon non représentée, on peut prévoir que l’écart entre les parties de verrouillage 6a,6b soit défini de sorte que la partie 6a, la plus éloignée du bouton 8, s’insère avant l’autre partie 6b lors de la mise du fil 5 en position de verrouillage.Not shown, it can be provided that the distance between the locking parts 6a, 6b is defined so that the part 6a, the furthest from the button 8, is inserted before the other part 6b when the wire 5 in the locked position.
Un tel agencement permet que la partie 6a, une fois insérée partiellement, guide précisément l’autre partie 6b en regard du cran 3 correspondant, ceci malgré des dispersions dimensionnelles qui peuvent être présentes dans l’appui-tête 1.Such an arrangement allows the part 6a, once partially inserted, to precisely guide the other part 6b opposite the corresponding notch 3, this despite dimensional dispersions which may be present in the headrest 1.
Selon la réalisation de la figure 4, les tiges 2 présentent des crans 3 débouchant latéralement, les parties de verrouillages 6a,6b du fil 5 présentant une forme générale de U dont une des branches 11 s’insère dans un cran 3 lors de la mise en position de verrouillage dudit fil.According to the embodiment of FIG. 4, the rods 2 have notches 3 opening out laterally, the locking parts 6a, 6b of the wire 5 having a general shape of U of which one of the branches 11 is inserted in a notch 3 during the setting in the locking position of said wire.
Selon une réalisation, le fil 5 présente une section cylindrique, ce qui lui permet de s’introduire aisément dans les crans 3.According to one embodiment, the wire 5 has a cylindrical section, which allows it to be easily introduced into the notches 3.
Selon une réalisation, le fil 5 présente un diamètre compris entre 1 et 2 mm, ce qui correspond usuellement à la largeur d’un cran 3 de verrouillage.According to one embodiment, the wire 5 has a diameter between 1 and 2 mm, which usually corresponds to the width of a locking notch 3.
Selon les réalisations des figures 1,2, 4, le fil 5 est monté sur une traverse 12, notamment en matériau plastique moulé, ladite traverse étant montée en coulissement transversal dans le boîtier 4.According to the embodiments of FIGS. 1, 2, 4, the wire 5 is mounted on a cross member 12, in particular of molded plastic material, said cross member being mounted in transverse sliding in the housing 4.
Selon la réalisation de la figure 3, le fil 5 est directement monté en coulissement dans le boîtier 4, sans mise en œuvre d’une traverse.According to the embodiment of Figure 3, the wire 5 is directly slidably mounted in the housing 4, without the implementation of a crosspiece.
On pourrait également envisager, de façon non représentée, que la réalisation de la figure 4 soit dépourvue de traverse 12, le fil 5 étant directement monté en coulissement dans le boîtier 4.It could also be envisaged, in a manner not shown, that the embodiment of FIG. 4 is devoid of cross-member 12, the wire 5 being directly slidably mounted in the housing 4.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1757075A FR3069499B1 (en) | 2017-07-25 | 2017-07-25 | HEADREST FOR THE SEAT OF A MOTOR VEHICLE |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1757075A FR3069499B1 (en) | 2017-07-25 | 2017-07-25 | HEADREST FOR THE SEAT OF A MOTOR VEHICLE |
| FR1757075 | 2017-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3069499A1 true FR3069499A1 (en) | 2019-02-01 |
| FR3069499B1 FR3069499B1 (en) | 2019-09-06 |
Family
ID=60515491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1757075A Active FR3069499B1 (en) | 2017-07-25 | 2017-07-25 | HEADREST FOR THE SEAT OF A MOTOR VEHICLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3069499B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3093678A1 (en) * | 2019-03-12 | 2020-09-18 | Tesca France | Motor vehicle seat headrest |
| FR3103753A1 (en) * | 2019-12-03 | 2021-06-04 | Tesca France | Motor vehicle seat headrest |
| WO2021214017A1 (en) * | 2020-04-23 | 2021-10-28 | Adient Engineering and IP GmbH | Headrest for a seat, and seat, in particular a vehicle seat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005058112A1 (en) * | 2005-12-05 | 2007-06-06 | Johnson Controls Gmbh | Locking device for motor vehicle seat, has locking unit which can be moved relative to stanchions and cooperates with spring unit that is prestressed in locking position and tensed in released position in comparison to locking position |
| WO2014129798A1 (en) * | 2013-02-20 | 2014-08-28 | Woobo Tech Co., Ltd. | Headrest moving device |
| DE102013005245A1 (en) * | 2013-03-27 | 2014-10-02 | Grammer Ag | Locking device for locking at least one support rod of a headrest on a vehicle part |
| US20150123445A1 (en) * | 2013-11-05 | 2015-05-07 | Lear Corporation | Adjustable head restraint assembly for vehicle seats |
-
2017
- 2017-07-25 FR FR1757075A patent/FR3069499B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005058112A1 (en) * | 2005-12-05 | 2007-06-06 | Johnson Controls Gmbh | Locking device for motor vehicle seat, has locking unit which can be moved relative to stanchions and cooperates with spring unit that is prestressed in locking position and tensed in released position in comparison to locking position |
| WO2014129798A1 (en) * | 2013-02-20 | 2014-08-28 | Woobo Tech Co., Ltd. | Headrest moving device |
| DE102013005245A1 (en) * | 2013-03-27 | 2014-10-02 | Grammer Ag | Locking device for locking at least one support rod of a headrest on a vehicle part |
| US20150123445A1 (en) * | 2013-11-05 | 2015-05-07 | Lear Corporation | Adjustable head restraint assembly for vehicle seats |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3093678A1 (en) * | 2019-03-12 | 2020-09-18 | Tesca France | Motor vehicle seat headrest |
| FR3103753A1 (en) * | 2019-12-03 | 2021-06-04 | Tesca France | Motor vehicle seat headrest |
| WO2021214017A1 (en) * | 2020-04-23 | 2021-10-28 | Adient Engineering and IP GmbH | Headrest for a seat, and seat, in particular a vehicle seat |
| US12043153B2 (en) | 2020-04-23 | 2024-07-23 | Adient Us Llc | Headrest for a seat, and seat, in particular a vehicle seat |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3069499B1 (en) | 2019-09-06 |
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